{
  "name": "Current EPA nonattainment county designations by pollutant",
  "description": "Whether a US county is in 'nonattainment' for a given Clean Air Act pollutant (and if so, at what severity classification) drives real obligations for anyone building, permitting, or selling into that county: stricter new-source review, vehicle inspection and reformulated-fuel requirements, and federal highway-funding conditions all key off this status. EPA's Green Book is the single authoritative list, but it is a very long plain-text table with no per-county lookup and no API \u2014 a resident, contractor, or small manufacturer has to scan hundreds of rows by hand to find their county. Each record is one county x one pollutant NAAQS combination: whether it is designated nonattainment, the classification if the pollutant test has one (Marginal through Extreme for ozone; Moderate/Serious for PM), and the named nonattainment area it belongs to. Answers 'is [county] in nonattainment for ozone', 'what classification is [county] for PM-2.5', 'does building in [county] trigger nonattainment-area permitting'.",
  "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/",
  "licence": "US federal government work, no copyright (17 USC 105)",
  "last_verified": "2026-08-31",
  "stale_after": "2027-02-27",
  "sources": [
    "https://www3.epa.gov/airquality/greenbook/ancl.html"
  ],
  "records": [
    {
      "row_id": "denver-boulder-greeley-ft-collins-loveland-co-severe-15",
      "state": "COLORADO",
      "county": "Adams County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-adams-county-colorado-denver-boulder-greeley-ft-collins-loveland-co-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-adams-county-colorado-denver-boulder-greeley-ft-collins-loveland-co-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Adams County | 8-Hour Ozone (2008) | | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-francisco-bay-area-ca-marginal",
      "state": "CALIFORNIA",
      "county": "Alameda County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "San Francisco Bay Area, CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-alameda-county-california-san-francisco-bay-area-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-alameda-county-california-san-francisco-bay-area-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Alameda County | PM-2.5 (2006) | | San Francisco Bay Area, CA - (Moderate) | 8-Hour Ozone (2008) | | San Francisco Bay Area, CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "pittsburgh-beaver-valley-pa-marginal",
      "state": "PENNSYLVANIA",
      "county": "Allegheny County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Pittsburgh-Beaver Valley, PA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-allegheny-county-pennsylvania-pittsburgh-beaver-valley-pa-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-allegheny-county-pennsylvania-pittsburgh-beaver-valley-pa-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Allegheny County | 8-Hour Ozone (2008) | | Pittsburgh-Beaver Valley, PA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "baltimore-md-moderate",
      "state": "MARYLAND",
      "county": "Anne Arundel County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Baltimore, MD - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-anne-arundel-county-maryland-baltimore-md-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-anne-arundel-county-maryland-baltimore-md-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Anne Arundel County | Sulfur Dioxide (2010) | * | Anne Arundel County and Baltimore County, MD | 8-Hour Ozone (2008) | | Baltimore, MD - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "denver-boulder-greeley-ft-collins-loveland-co-severe-15",
      "state": "COLORADO",
      "county": "Arapahoe County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-arapahoe-county-colorado-denver-boulder-greeley-ft-collins-loveland-co-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-arapahoe-county-colorado-denver-boulder-greeley-ft-collins-loveland-co-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Arapahoe County | 8-Hour Ozone (2008) | | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "pittsburgh-beaver-valley-pa-marginal",
      "state": "PENNSYLVANIA",
      "county": "Armstrong County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Pittsburgh-Beaver Valley, PA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-armstrong-county-pennsylvania-pittsburgh-beaver-valley-pa-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-armstrong-county-pennsylvania-pittsburgh-beaver-valley-pa-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Armstrong County | Sulfur Dioxide (1971) | * | Armstrong County: Madison, Mahoning, Boggs, Washington, Pine, PA | Sulfur Dioxide (2010) | * | Indiana, PA | 8-Hour Ozone (2008) | | Pittsburgh-Beaver Valley, PA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "philadelphia-atlantic-city-pa-nj-marginal",
      "state": "NEW JERSEY",
      "county": "Atlantic County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Philadelphia-Atlantic City, PA-NJ - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-atlantic-county-new-jersey-philadelphia-atlantic-city-pa-nj-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-atlantic-county-new-jersey-philadelphia-atlantic-city-pa-nj-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Atlantic County | 8-Hour Ozone (2008) | | Philadelphia-Atlantic City, PA-NJ - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "baltimore-md-moderate",
      "state": "MARYLAND",
      "county": "Baltimore city",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Baltimore, MD - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-baltimore-city-maryland-baltimore-md-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-baltimore-city-maryland-baltimore-md-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Baltimore city | 8-Hour Ozone (2008) | | Baltimore, MD - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "baltimore-md-moderate",
      "state": "MARYLAND",
      "county": "Baltimore County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Baltimore, MD - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-baltimore-county-maryland-baltimore-md-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-baltimore-county-maryland-baltimore-md-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Baltimore County | Sulfur Dioxide (2010) | * | Anne Arundel County and Baltimore County, MD | 8-Hour Ozone (2008) | | Baltimore, MD - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "pittsburgh-beaver-valley-pa-marginal",
      "state": "PENNSYLVANIA",
      "county": "Beaver County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Pittsburgh-Beaver Valley, PA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-beaver-county-pennsylvania-pittsburgh-beaver-valley-pa-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-beaver-county-pennsylvania-pittsburgh-beaver-valley-pa-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Beaver County | Lead (2008) | * | Lower Beaver Valley, PA | 8-Hour Ozone (2008) | | Pittsburgh-Beaver Valley, PA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "state": "NEW JERSEY",
      "county": "Bergen County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-bergen-county-new-jersey-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-bergen-county-new-jersey-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Bergen County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "reading-pa-marginal",
      "state": "PENNSYLVANIA",
      "county": "Berks County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Reading, PA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-berks-county-pennsylvania-reading-pa-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-berks-county-pennsylvania-reading-pa-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Berks County | Lead (2008) | * | Lyons, PA | Lead (2008) | * | North Reading, PA | 8-Hour Ozone (2008) | | Reading, PA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "denver-boulder-greeley-ft-collins-loveland-co-severe-15",
      "state": "COLORADO",
      "county": "Boulder County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-boulder-county-colorado-denver-boulder-greeley-ft-collins-loveland-co-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-boulder-county-colorado-denver-boulder-greeley-ft-collins-loveland-co-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Boulder County | 8-Hour Ozone (2008) | | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "houston-galveston-brazoria-tx-severe-15",
      "state": "TEXAS",
      "county": "Brazoria County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Houston-Galveston-Brazoria, TX - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-brazoria-county-texas-houston-galveston-brazoria-tx-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-brazoria-county-texas-houston-galveston-brazoria-tx-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Brazoria County | 8-Hour Ozone (2008) | | Houston-Galveston-Brazoria, TX - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "state": "NEW YORK",
      "county": "Bronx County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-bronx-county-new-york-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-bronx-county-new-york-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Bronx County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "denver-boulder-greeley-ft-collins-loveland-co-severe-15",
      "state": "COLORADO",
      "county": "Broomfield County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-broomfield-county-colorado-denver-boulder-greeley-ft-collins-loveland-co-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-broomfield-county-colorado-denver-boulder-greeley-ft-collins-loveland-co-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Broomfield County | 8-Hour Ozone (2008) | | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "philadelphia-atlantic-city-pa-nj-marginal",
      "state": "PENNSYLVANIA",
      "county": "Bucks County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Philadelphia-Atlantic City, PA-NJ - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-bucks-county-pennsylvania-philadelphia-atlantic-city-pa-nj-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-bucks-county-pennsylvania-philadelphia-atlantic-city-pa-nj-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Bucks County | 8-Hour Ozone (2008) | | Philadelphia-Atlantic City, PA-NJ - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "philadelphia-atlantic-city-pa-nj-marginal",
      "state": "NEW JERSEY",
      "county": "Burlington County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Philadelphia-Atlantic City, PA-NJ - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-burlington-county-new-jersey-philadelphia-atlantic-city-pa-nj-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-burlington-county-new-jersey-philadelphia-atlantic-city-pa-nj-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Burlington County | 8-Hour Ozone (2008) | | Philadelphia-Atlantic City, PA-NJ - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "pittsburgh-beaver-valley-pa-marginal",
      "state": "PENNSYLVANIA",
      "county": "Butler County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Pittsburgh-Beaver Valley, PA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-butler-county-pennsylvania-pittsburgh-beaver-valley-pa-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-butler-county-pennsylvania-pittsburgh-beaver-valley-pa-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Butler County | 8-Hour Ozone (2008) | | Pittsburgh-Beaver Valley, PA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "chico-butte-county-ca-marginal",
      "state": "CALIFORNIA",
      "county": "Butte County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Chico (Butte County), CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-butte-county-california-chico-butte-county-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-butte-county-california-chico-butte-county-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Butte County | 8-Hour Ozone (2008) | | Chico (Butte County), CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "calaveras-county-ca-marginal",
      "state": "CALIFORNIA",
      "county": "Calaveras County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Calaveras County, CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-calaveras-county-california-calaveras-county-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-calaveras-county-california-calaveras-county-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Calaveras County | 8-Hour Ozone (2008) | | Calaveras County, CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "philadelphia-atlantic-city-pa-nj-marginal",
      "state": "NEW JERSEY",
      "county": "Camden County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Philadelphia-Atlantic City, PA-NJ - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-camden-county-new-jersey-philadelphia-atlantic-city-pa-nj-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-camden-county-new-jersey-philadelphia-atlantic-city-pa-nj-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Camden County | 8-Hour Ozone (2008) | | Philadelphia-Atlantic City, PA-NJ - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "philadelphia-atlantic-city-pa-nj-marginal",
      "state": "NEW JERSEY",
      "county": "Cape May County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Philadelphia-Atlantic City, PA-NJ - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-cape-may-county-new-jersey-philadelphia-atlantic-city-pa-nj-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-cape-may-county-new-jersey-philadelphia-atlantic-city-pa-nj-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Cape May County | 8-Hour Ozone (2008) | | Philadelphia-Atlantic City, PA-NJ - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "allentown-bethlehem-easton-pa-marginal",
      "state": "PENNSYLVANIA",
      "county": "Carbon County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Allentown-Bethlehem-Easton, PA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-carbon-county-pennsylvania-allentown-bethlehem-easton-pa-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-carbon-county-pennsylvania-allentown-bethlehem-easton-pa-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Carbon County | 8-Hour Ozone (2008) | | Allentown-Bethlehem-Easton, PA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "baltimore-md-moderate",
      "state": "MARYLAND",
      "county": "Carroll County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Baltimore, MD - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-carroll-county-maryland-baltimore-md-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-carroll-county-maryland-baltimore-md-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Carroll County | 8-Hour Ozone (2008) | | Baltimore, MD - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "cecil-county-md-marginal",
      "state": "MARYLAND",
      "county": "Cecil County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Cecil County, MD - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-cecil-county-maryland-cecil-county-md-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-cecil-county-maryland-cecil-county-md-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Cecil County | 8-Hour Ozone (2008) | | Cecil County, MD - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "houston-galveston-brazoria-tx-severe-15",
      "state": "TEXAS",
      "county": "Chambers County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Houston-Galveston-Brazoria, TX - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-chambers-county-texas-houston-galveston-brazoria-tx-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-chambers-county-texas-houston-galveston-brazoria-tx-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Chambers County | 8-Hour Ozone (2008) | | Houston-Galveston-Brazoria, TX - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "jamestown-ny-marginal",
      "state": "NEW YORK",
      "county": "Chautauqua County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Jamestown, NY - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-chautauqua-county-new-york-jamestown-ny-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-chautauqua-county-new-york-jamestown-ny-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Chautauqua County | 8-Hour Ozone (2008) | | Jamestown, NY - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "philadelphia-atlantic-city-pa-nj-marginal",
      "state": "PENNSYLVANIA",
      "county": "Chester County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Philadelphia-Atlantic City, PA-NJ - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-chester-county-pennsylvania-philadelphia-atlantic-city-pa-nj-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-chester-county-pennsylvania-philadelphia-atlantic-city-pa-nj-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Chester County | 8-Hour Ozone (2008) | | Philadelphia-Atlantic City, PA-NJ - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "dallas-fort-worth-tx-severe-15",
      "state": "TEXAS",
      "county": "Collin County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Dallas-Fort Worth, TX - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-collin-county-texas-dallas-fort-worth-tx-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-collin-county-texas-dallas-fort-worth-tx-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Collin County | 8-Hour Ozone (2008) | | Dallas-Fort Worth, TX - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-francisco-bay-area-ca-marginal",
      "state": "CALIFORNIA",
      "county": "Contra Costa County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "San Francisco Bay Area, CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-contra-costa-county-california-san-francisco-bay-area-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-contra-costa-county-california-san-francisco-bay-area-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Contra Costa County | PM-2.5 (2006) | | San Francisco Bay Area, CA - (Moderate) | 8-Hour Ozone (2008) | | San Francisco Bay Area, CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "philadelphia-atlantic-city-pa-nj-marginal",
      "state": "NEW JERSEY",
      "county": "Cumberland County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Philadelphia-Atlantic City, PA-NJ - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-cumberland-county-new-jersey-philadelphia-atlantic-city-pa-nj-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-cumberland-county-new-jersey-philadelphia-atlantic-city-pa-nj-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Cumberland County | 8-Hour Ozone (2008) | | Philadelphia-Atlantic City, PA-NJ - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "dallas-fort-worth-tx-severe-15",
      "state": "TEXAS",
      "county": "Dallas County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Dallas-Fort Worth, TX - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-dallas-county-texas-dallas-fort-worth-tx-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-dallas-county-texas-dallas-fort-worth-tx-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Dallas County | 8-Hour Ozone (2008) | | Dallas-Fort Worth, TX - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "philadelphia-atlantic-city-pa-nj-marginal",
      "state": "PENNSYLVANIA",
      "county": "Delaware County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Philadelphia-Atlantic City, PA-NJ - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-delaware-county-pennsylvania-philadelphia-atlantic-city-pa-nj-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-delaware-county-pennsylvania-philadelphia-atlantic-city-pa-nj-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Delaware County | 8-Hour Ozone (2008) | | Philadelphia-Atlantic City, PA-NJ - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "dallas-fort-worth-tx-severe-15",
      "state": "TEXAS",
      "county": "Denton County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Dallas-Fort Worth, TX - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-denton-county-texas-dallas-fort-worth-tx-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-denton-county-texas-dallas-fort-worth-tx-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Denton County | 8-Hour Ozone (2008) | | Dallas-Fort Worth, TX - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "denver-boulder-greeley-ft-collins-loveland-co-severe-15",
      "state": "COLORADO",
      "county": "Denver County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-denver-county-colorado-denver-boulder-greeley-ft-collins-loveland-co-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-denver-county-colorado-denver-boulder-greeley-ft-collins-loveland-co-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Denver County | 8-Hour Ozone (2008) | | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "denver-boulder-greeley-ft-collins-loveland-co-severe-15",
      "state": "COLORADO",
      "county": "Douglas County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-douglas-county-colorado-denver-boulder-greeley-ft-collins-loveland-co-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-douglas-county-colorado-denver-boulder-greeley-ft-collins-loveland-co-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Douglas County | 8-Hour Ozone (2008) | | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "dukes-county-ma-marginal",
      "state": "MASSACHUSETTS",
      "county": "Dukes County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Dukes County, MA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-dukes-county-massachusetts-dukes-county-ma-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-dukes-county-massachusetts-dukes-county-ma-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Dukes County | 8-Hour Ozone (2008) | | Dukes County, MA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "sacramento-metro-ca-severe-15",
      "state": "CALIFORNIA",
      "county": "El Dorado County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Sacramento Metro, CA - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-el-dorado-county-california-sacramento-metro-ca-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-el-dorado-county-california-sacramento-metro-ca-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "El Dorado County | PM-2.5 (2006) | * | Sacramento, CA - (Moderate) | 8-Hour Ozone (2008) | * | Sacramento Metro, CA - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "dallas-fort-worth-tx-severe-15",
      "state": "TEXAS",
      "county": "Ellis County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Dallas-Fort Worth, TX - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-ellis-county-texas-dallas-fort-worth-tx-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-ellis-county-texas-dallas-fort-worth-tx-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Ellis County | 8-Hour Ozone (2008) | | Dallas-Fort Worth, TX - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "state": "NEW JERSEY",
      "county": "Essex County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-essex-county-new-jersey-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-essex-county-new-jersey-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Essex County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "state": "CONNECTICUT",
      "county": "Fairfield County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-fairfield-county-connecticut-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-fairfield-county-connecticut-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Fairfield County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "pittsburgh-beaver-valley-pa-marginal",
      "state": "PENNSYLVANIA",
      "county": "Fayette County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Pittsburgh-Beaver Valley, PA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-fayette-county-pennsylvania-pittsburgh-beaver-valley-pa-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-fayette-county-pennsylvania-pittsburgh-beaver-valley-pa-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Fayette County | 8-Hour Ozone (2008) | | Pittsburgh-Beaver Valley, PA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "houston-galveston-brazoria-tx-severe-15",
      "state": "TEXAS",
      "county": "Fort Bend County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Houston-Galveston-Brazoria, TX - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-fort-bend-county-texas-houston-galveston-brazoria-tx-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-fort-bend-county-texas-houston-galveston-brazoria-tx-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Fort Bend County | 8-Hour Ozone (2008) | | Houston-Galveston-Brazoria, TX - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-extreme",
      "state": "CALIFORNIA",
      "county": "Fresno County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Extreme)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-fresno-county-california-san-joaquin-valley-ca-extreme",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-fresno-county-california-san-joaquin-valley-ca-extreme/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Fresno County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2012) | | San Joaquin Valley, CA - (Serious) | 8-Hour Ozone (2008) | | San Joaquin Valley, CA - (Extreme)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "houston-galveston-brazoria-tx-severe-15",
      "state": "TEXAS",
      "county": "Galveston County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Houston-Galveston-Brazoria, TX - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-galveston-county-texas-houston-galveston-brazoria-tx-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-galveston-county-texas-houston-galveston-brazoria-tx-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Galveston County | 8-Hour Ozone (2008) | | Houston-Galveston-Brazoria, TX - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "philadelphia-atlantic-city-pa-nj-marginal",
      "state": "NEW JERSEY",
      "county": "Gloucester County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Philadelphia-Atlantic City, PA-NJ - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-gloucester-county-new-jersey-philadelphia-atlantic-city-pa-nj-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-gloucester-county-new-jersey-philadelphia-atlantic-city-pa-nj-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Gloucester County | 8-Hour Ozone (2008) | | Philadelphia-Atlantic City, PA-NJ - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "baltimore-md-moderate",
      "state": "MARYLAND",
      "county": "Harford County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Baltimore, MD - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-harford-county-maryland-baltimore-md-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-harford-county-maryland-baltimore-md-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Harford County | 8-Hour Ozone (2008) | | Baltimore, MD - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "houston-galveston-brazoria-tx-severe-15",
      "state": "TEXAS",
      "county": "Harris County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Houston-Galveston-Brazoria, TX - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-harris-county-texas-houston-galveston-brazoria-tx-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-harris-county-texas-houston-galveston-brazoria-tx-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Harris County | 8-Hour Ozone (2008) | | Houston-Galveston-Brazoria, TX - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "greater-connecticut-ct-serious",
      "state": "CONNECTICUT",
      "county": "Hartford County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Greater Connecticut, CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-hartford-county-connecticut-greater-connecticut-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-hartford-county-connecticut-greater-connecticut-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Hartford County | 8-Hour Ozone (2008) | | Greater Connecticut, CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "baltimore-md-moderate",
      "state": "MARYLAND",
      "county": "Howard County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Baltimore, MD - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-howard-county-maryland-baltimore-md-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-howard-county-maryland-baltimore-md-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Howard County | 8-Hour Ozone (2008) | | Baltimore, MD - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "state": "NEW JERSEY",
      "county": "Hudson County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-hudson-county-new-jersey-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-hudson-county-new-jersey-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Hudson County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "state": "NEW JERSEY",
      "county": "Hunterdon County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-hunterdon-county-new-jersey-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-hunterdon-county-new-jersey-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Hunterdon County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "imperial-county-ca-moderate",
      "state": "CALIFORNIA",
      "county": "Imperial County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Imperial County, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-imperial-county-california-imperial-county-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-imperial-county-california-imperial-county-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Imperial County | PM-2.5 (2006) | * | Imperial County, CA - (Moderate) | PM-2.5 (2012) | * | Imperial County, CA - (Moderate) | 8-Hour Ozone (2008) | | Imperial County, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "denver-boulder-greeley-ft-collins-loveland-co-severe-15",
      "state": "COLORADO",
      "county": "Jefferson County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-jefferson-county-colorado-denver-boulder-greeley-ft-collins-loveland-co-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-jefferson-county-colorado-denver-boulder-greeley-ft-collins-loveland-co-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Jefferson County | 8-Hour Ozone (2008) | | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "dallas-fort-worth-tx-severe-15",
      "state": "TEXAS",
      "county": "Johnson County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Dallas-Fort Worth, TX - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-johnson-county-texas-dallas-fort-worth-tx-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-johnson-county-texas-dallas-fort-worth-tx-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Johnson County | 8-Hour Ozone (2008) | | Dallas-Fort Worth, TX - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "dallas-fort-worth-tx-severe-15",
      "state": "TEXAS",
      "county": "Kaufman County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Dallas-Fort Worth, TX - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-kaufman-county-texas-dallas-fort-worth-tx-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-kaufman-county-texas-dallas-fort-worth-tx-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Kaufman County | 8-Hour Ozone (2008) | | Dallas-Fort Worth, TX - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "kern-county-eastern-kern-ca-severe-15",
      "state": "CALIFORNIA",
      "county": "Kern County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Kern County (Eastern Kern), CA - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-kern-county-california-kern-county-eastern-kern-ca-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-kern-county-california-kern-county-eastern-kern-ca-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Kern County | PM-10 (1987) | * | East Kern County, CA - (Serious) | PM-2.5 (1997) | * | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | * | San Joaquin Valley, CA - (Serious) | PM-2.5 (2012) | * | San Joaquin Valley, CA - (Serious) | 8-Hour Ozone (2008) | * | Kern County (Eastern Kern), CA - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-extreme",
      "state": "CALIFORNIA",
      "county": "Kern County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Extreme)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-kern-county-california-san-joaquin-valley-ca-extreme",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-kern-county-california-san-joaquin-valley-ca-extreme/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Kern County | PM-10 (1987) | * | East Kern County, CA - (Serious) | PM-2.5 (1997) | * | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | * | San Joaquin Valley, CA - (Serious) | PM-2.5 (2012) | * | San Joaquin Valley, CA - (Serious) | 8-Hour Ozone (2008) | * | Kern County (Eastern Kern), CA - (Severe 15) | 8-Hour Ozone (2008) | * | San Joaquin Valley, CA - (Extreme)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-extreme",
      "state": "CALIFORNIA",
      "county": "Kings County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Extreme)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-kings-county-california-san-joaquin-valley-ca-extreme",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-kings-county-california-san-joaquin-valley-ca-extreme/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Kings County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2012) | | San Joaquin Valley, CA - (Serious) | 8-Hour Ozone (2008) | | San Joaquin Valley, CA - (Extreme)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "state": "NEW YORK",
      "county": "Kings County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-kings-county-new-york-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-kings-county-new-york-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Kings County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "lancaster-pa-marginal",
      "state": "PENNSYLVANIA",
      "county": "Lancaster County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Lancaster, PA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-lancaster-county-pennsylvania-lancaster-pa-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-lancaster-county-pennsylvania-lancaster-pa-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Lancaster County | 8-Hour Ozone (2008) | | Lancaster, PA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "denver-boulder-greeley-ft-collins-loveland-co-severe-15",
      "state": "COLORADO",
      "county": "Larimer County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-larimer-county-colorado-denver-boulder-greeley-ft-collins-loveland-co-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-larimer-county-colorado-denver-boulder-greeley-ft-collins-loveland-co-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Larimer County | 8-Hour Ozone (2008) | * | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "allentown-bethlehem-easton-pa-marginal",
      "state": "PENNSYLVANIA",
      "county": "Lehigh County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Allentown-Bethlehem-Easton, PA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-lehigh-county-pennsylvania-allentown-bethlehem-easton-pa-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-lehigh-county-pennsylvania-allentown-bethlehem-easton-pa-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Lehigh County | 8-Hour Ozone (2008) | | Allentown-Bethlehem-Easton, PA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "houston-galveston-brazoria-tx-severe-15",
      "state": "TEXAS",
      "county": "Liberty County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Houston-Galveston-Brazoria, TX - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-liberty-county-texas-houston-galveston-brazoria-tx-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-liberty-county-texas-houston-galveston-brazoria-tx-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Liberty County | 8-Hour Ozone (2008) | | Houston-Galveston-Brazoria, TX - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "upper-green-river-basin-area-wy-marginal",
      "state": "WYOMING",
      "county": "Lincoln County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Upper Green River Basin Area, WY - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-lincoln-county-wyoming-upper-green-river-basin-area-wy-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-lincoln-county-wyoming-upper-green-river-basin-area-wy-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Lincoln County | 8-Hour Ozone (2008) | * | Upper Green River Basin Area, WY - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "greater-connecticut-ct-serious",
      "state": "CONNECTICUT",
      "county": "Litchfield County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Greater Connecticut, CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-litchfield-county-connecticut-greater-connecticut-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-litchfield-county-connecticut-greater-connecticut-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Litchfield County | 8-Hour Ozone (2008) | | Greater Connecticut, CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "los-angeles-san-bernardino-counties-west-mojave-desert-ca-severe-15",
      "state": "CALIFORNIA",
      "county": "Los Angeles County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Los Angeles-San Bernardino Counties (West Mojave Desert), CA - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-los-angeles-county-california-los-angeles-san-bernardino-counties-west-mojave-desert-ca-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-los-angeles-county-california-los-angeles-san-bernardino-counties-west-mojave-desert-ca-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Los Angeles County | Lead (2008) | * | Los Angeles County-South Coast Air Basin, CA | PM-2.5 (1997) | * | Los Angeles-South Coast Air Basin, CA - (Moderate) | PM-2.5 (2006) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | PM-2.5 (2012) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | 8-Hour Ozone (2008) | * | Los Angeles-San Bernardino Counties (West Mojave Desert), CA - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "los-angeles-south-coast-air-basin-ca-extreme",
      "state": "CALIFORNIA",
      "county": "Los Angeles County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Los Angeles-South Coast Air Basin, CA - (Extreme)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-los-angeles-county-california-los-angeles-south-coast-air-basin-ca-extreme",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-los-angeles-county-california-los-angeles-south-coast-air-basin-ca-extreme/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Los Angeles County | Lead (2008) | * | Los Angeles County-South Coast Air Basin, CA | PM-2.5 (1997) | * | Los Angeles-South Coast Air Basin, CA - (Moderate) | PM-2.5 (2006) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | PM-2.5 (2012) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | 8-Hour Ozone (2008) | * | Los Angeles-San Bernardino Counties (West Mojave Desert), CA - (Severe 15) | 8-Hour Ozone (2008) | * | Los Angeles-South Coast Air Basin, CA - (Extreme)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-extreme",
      "state": "CALIFORNIA",
      "county": "Madera County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Extreme)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-madera-county-california-san-joaquin-valley-ca-extreme",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-madera-county-california-san-joaquin-valley-ca-extreme/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Madera County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2012) | | San Joaquin Valley, CA - (Serious) | 8-Hour Ozone (2008) | | San Joaquin Valley, CA - (Extreme)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "phoenix-mesa-az-moderate",
      "state": "ARIZONA",
      "county": "Maricopa County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Phoenix-Mesa, AZ - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-maricopa-county-arizona-phoenix-mesa-az-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-maricopa-county-arizona-phoenix-mesa-az-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Maricopa County | PM-10 (1987) | * | Maricopa and Pinal Counties; Phoenix planning area, AZ - (Serious) | 8-Hour Ozone (2008) | * | Phoenix-Mesa, AZ - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-francisco-bay-area-ca-marginal",
      "state": "CALIFORNIA",
      "county": "Marin County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "San Francisco Bay Area, CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-marin-county-california-san-francisco-bay-area-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-marin-county-california-san-francisco-bay-area-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Marin County | PM-2.5 (2006) | | San Francisco Bay Area, CA - (Moderate) | 8-Hour Ozone (2008) | | San Francisco Bay Area, CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "mariposa-county-ca-moderate",
      "state": "CALIFORNIA",
      "county": "Mariposa County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Mariposa County, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-mariposa-county-california-mariposa-county-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-mariposa-county-california-mariposa-county-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Mariposa County | 8-Hour Ozone (2008) | | Mariposa County, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-extreme",
      "state": "CALIFORNIA",
      "county": "Merced County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Extreme)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-merced-county-california-san-joaquin-valley-ca-extreme",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-merced-county-california-san-joaquin-valley-ca-extreme/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Merced County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2012) | | San Joaquin Valley, CA - (Serious) | 8-Hour Ozone (2008) | | San Joaquin Valley, CA - (Extreme)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "philadelphia-atlantic-city-pa-nj-marginal",
      "state": "NEW JERSEY",
      "county": "Mercer County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Philadelphia-Atlantic City, PA-NJ - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-mercer-county-new-jersey-philadelphia-atlantic-city-pa-nj-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-mercer-county-new-jersey-philadelphia-atlantic-city-pa-nj-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Mercer County | 8-Hour Ozone (2008) | | Philadelphia-Atlantic City, PA-NJ - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "state": "CONNECTICUT",
      "county": "Middlesex County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-middlesex-county-connecticut-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-middlesex-county-connecticut-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Middlesex County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "state": "NEW JERSEY",
      "county": "Middlesex County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-middlesex-county-new-jersey-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-middlesex-county-new-jersey-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Middlesex County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "state": "NEW JERSEY",
      "county": "Monmouth County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-monmouth-county-new-jersey-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-monmouth-county-new-jersey-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Monmouth County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "philadelphia-atlantic-city-pa-nj-marginal",
      "state": "PENNSYLVANIA",
      "county": "Montgomery County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Philadelphia-Atlantic City, PA-NJ - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-montgomery-county-pennsylvania-philadelphia-atlantic-city-pa-nj-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-montgomery-county-pennsylvania-philadelphia-atlantic-city-pa-nj-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Montgomery County | 8-Hour Ozone (2008) | | Philadelphia-Atlantic City, PA-NJ - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "houston-galveston-brazoria-tx-severe-15",
      "state": "TEXAS",
      "county": "Montgomery County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Houston-Galveston-Brazoria, TX - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-montgomery-county-texas-houston-galveston-brazoria-tx-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-montgomery-county-texas-houston-galveston-brazoria-tx-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Montgomery County | 8-Hour Ozone (2008) | | Houston-Galveston-Brazoria, TX - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "state": "NEW JERSEY",
      "county": "Morris County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-morris-county-new-jersey-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-morris-county-new-jersey-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Morris County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-francisco-bay-area-ca-marginal",
      "state": "CALIFORNIA",
      "county": "Napa County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "San Francisco Bay Area, CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-napa-county-california-san-francisco-bay-area-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-napa-county-california-san-francisco-bay-area-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Napa County | PM-2.5 (2006) | | San Francisco Bay Area, CA - (Moderate) | 8-Hour Ozone (2008) | | San Francisco Bay Area, CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "state": "NEW YORK",
      "county": "Nassau County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-nassau-county-new-york-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-nassau-county-new-york-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Nassau County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "nevada-county-western-part-ca-serious",
      "state": "CALIFORNIA",
      "county": "Nevada County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Nevada County (Western part), CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-nevada-county-california-nevada-county-western-part-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-nevada-county-california-nevada-county-western-part-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Nevada County | 8-Hour Ozone (2008) | * | Nevada County (Western part), CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-castle-county-de-marginal",
      "state": "DELAWARE",
      "county": "New Castle County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "New Castle County, DE - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-new-castle-county-delaware-new-castle-county-de-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-new-castle-county-delaware-new-castle-county-de-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "New Castle County | 8-Hour Ozone (2008) | | New Castle County, DE - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "state": "CONNECTICUT",
      "county": "New Haven County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-new-haven-county-connecticut-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-new-haven-county-connecticut-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "New Haven County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "greater-connecticut-ct-serious",
      "state": "CONNECTICUT",
      "county": "New London County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Greater Connecticut, CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-new-london-county-connecticut-greater-connecticut-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-new-london-county-connecticut-greater-connecticut-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "New London County | 8-Hour Ozone (2008) | | Greater Connecticut, CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "state": "NEW YORK",
      "county": "New York County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-new-york-county-new-york-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-new-york-county-new-york-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "New York County | PM-10 (1987) | | New York County, NY - (Moderate) | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "allentown-bethlehem-easton-pa-marginal",
      "state": "PENNSYLVANIA",
      "county": "Northampton County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Allentown-Bethlehem-Easton, PA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-northampton-county-pennsylvania-allentown-bethlehem-easton-pa-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-northampton-county-pennsylvania-allentown-bethlehem-easton-pa-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Northampton County | 8-Hour Ozone (2008) | | Allentown-Bethlehem-Easton, PA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "philadelphia-atlantic-city-pa-nj-marginal",
      "state": "NEW JERSEY",
      "county": "Ocean County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Philadelphia-Atlantic City, PA-NJ - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-ocean-county-new-jersey-philadelphia-atlantic-city-pa-nj-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-ocean-county-new-jersey-philadelphia-atlantic-city-pa-nj-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Ocean County | 8-Hour Ozone (2008) | | Philadelphia-Atlantic City, PA-NJ - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "los-angeles-south-coast-air-basin-ca-extreme",
      "state": "CALIFORNIA",
      "county": "Orange County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Los Angeles-South Coast Air Basin, CA - (Extreme)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-orange-county-california-los-angeles-south-coast-air-basin-ca-extreme",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-orange-county-california-los-angeles-south-coast-air-basin-ca-extreme/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Orange County | PM-2.5 (1997) | | Los Angeles-South Coast Air Basin, CA - (Moderate) | PM-2.5 (2006) | | Los Angeles-South Coast Air Basin, CA - (Serious) | PM-2.5 (2012) | | Los Angeles-South Coast Air Basin, CA - (Serious) | 8-Hour Ozone (2008) | | Los Angeles-South Coast Air Basin, CA - (Extreme)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "dallas-fort-worth-tx-severe-15",
      "state": "TEXAS",
      "county": "Parker County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Dallas-Fort Worth, TX - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-parker-county-texas-dallas-fort-worth-tx-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-parker-county-texas-dallas-fort-worth-tx-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Parker County | 8-Hour Ozone (2008) | | Dallas-Fort Worth, TX - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "state": "NEW JERSEY",
      "county": "Passaic County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-passaic-county-new-jersey-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-passaic-county-new-jersey-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Passaic County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "philadelphia-atlantic-city-pa-nj-marginal",
      "state": "PENNSYLVANIA",
      "county": "Philadelphia County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Philadelphia-Atlantic City, PA-NJ - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-philadelphia-county-pennsylvania-philadelphia-atlantic-city-pa-nj-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-philadelphia-county-pennsylvania-philadelphia-atlantic-city-pa-nj-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Philadelphia County | 8-Hour Ozone (2008) | | Philadelphia-Atlantic City, PA-NJ - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "phoenix-mesa-az-moderate",
      "state": "ARIZONA",
      "county": "Pinal County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Phoenix-Mesa, AZ - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-pinal-county-arizona-phoenix-mesa-az-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-pinal-county-arizona-phoenix-mesa-az-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Pinal County | Lead (2008) | * | Hayden, AZ | PM-10 (1987) | * | Hayden, AZ - (Moderate) | PM-10 (1987) | * | Maricopa and Pinal Counties; Phoenix planning area, AZ - (Serious) | PM-10 (1987) | * | Miami, AZ - (Moderate) | PM-10 (1987) | * | Pinal County (part); West Pinal, AZ - (Serious) | PM-2.5 (2006) | * | West Central Pinal, AZ - (Moderate) | Sulfur Dioxide (1971) | * | Hayden (Pinal County), AZ | Sulfur Dioxide (2010) | * | Hayden, AZ | 8-Hour Ozone (2008) | * | Phoenix-Mesa, AZ - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "sacramento-metro-ca-severe-15",
      "state": "CALIFORNIA",
      "county": "Placer County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Sacramento Metro, CA - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-placer-county-california-sacramento-metro-ca-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-placer-county-california-sacramento-metro-ca-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Placer County | PM-2.5 (2006) | * | Sacramento, CA - (Moderate) | 8-Hour Ozone (2008) | * | Sacramento Metro, CA - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "state": "NEW YORK",
      "county": "Queens County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-queens-county-new-york-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-queens-county-new-york-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Queens County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "state": "NEW YORK",
      "county": "Richmond County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-richmond-county-new-york-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-richmond-county-new-york-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Richmond County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "los-angeles-south-coast-air-basin-ca-extreme",
      "state": "CALIFORNIA",
      "county": "Riverside County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Los Angeles-South Coast Air Basin, CA - (Extreme)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-riverside-county-california-los-angeles-south-coast-air-basin-ca-extreme",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-riverside-county-california-los-angeles-south-coast-air-basin-ca-extreme/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Riverside County | PM-10 (1987) | * | Riverside County; Coachella Valley planning area, CA - (Serious) | PM-2.5 (1997) | * | Los Angeles-South Coast Air Basin, CA - (Moderate) | PM-2.5 (2006) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | PM-2.5 (2012) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | 8-Hour Ozone (2008) | * | Los Angeles-South Coast Air Basin, CA - (Extreme)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "morongo-band-of-mission-indians-ca-severe-15",
      "state": "CALIFORNIA",
      "county": "Riverside County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Morongo Band of Mission Indians, CA - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-riverside-county-california-morongo-band-of-mission-indians-ca-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-riverside-county-california-morongo-band-of-mission-indians-ca-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Riverside County | PM-10 (1987) | * | Riverside County; Coachella Valley planning area, CA - (Serious) | PM-2.5 (1997) | * | Los Angeles-South Coast Air Basin, CA - (Moderate) | PM-2.5 (2006) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | PM-2.5 (2012) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | 8-Hour Ozone (2008) | * | Los Angeles-South Coast Air Basin, CA - (Extreme) | 8-Hour Ozone (2008) | * | Morongo Band of Mission Indians, CA - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "pechanga-band-of-luiseno-mission-indians-of-the-pechanga-reservation-ca-moderate",
      "state": "CALIFORNIA",
      "county": "Riverside County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-riverside-county-california-pechanga-band-of-luiseno-mission-indians-of-the-pechanga-reservation-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-riverside-county-california-pechanga-band-of-luiseno-mission-indians-of-the-pechanga-reservation-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Riverside County | PM-10 (1987) | * | Riverside County; Coachella Valley planning area, CA - (Serious) | PM-2.5 (1997) | * | Los Angeles-South Coast Air Basin, CA - (Moderate) | PM-2.5 (2006) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | PM-2.5 (2012) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | 8-Hour Ozone (2008) | * | Los Angeles-South Coast Air Basin, CA - (Extreme) | 8-Hour Ozone (2008) | * | Morongo Band of Mission Indians, CA - (Severe 15) | 8-Hour Ozone (2008) | * | Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "riverside-county-coachella-valley-ca-extreme",
      "state": "CALIFORNIA",
      "county": "Riverside County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Riverside County (Coachella Valley), CA - (Extreme)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-riverside-county-california-riverside-county-coachella-valley-ca-extreme",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-riverside-county-california-riverside-county-coachella-valley-ca-extreme/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Riverside County | PM-10 (1987) | * | Riverside County; Coachella Valley planning area, CA - (Serious) | PM-2.5 (1997) | * | Los Angeles-South Coast Air Basin, CA - (Moderate) | PM-2.5 (2006) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | PM-2.5 (2012) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | 8-Hour Ozone (2008) | * | Los Angeles-South Coast Air Basin, CA - (Extreme) | 8-Hour Ozone (2008) | * | Morongo Band of Mission Indians, CA - (Severe 15) | 8-Hour Ozone (2008) | * | Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation, CA - (Moderate) | 8-Hour Ozone (2008) | * | Riverside County (Coachella Valley), CA - (Extreme)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "state": "NEW YORK",
      "county": "Rockland County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-rockland-county-new-york-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-rockland-county-new-york-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Rockland County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "dallas-fort-worth-tx-severe-15",
      "state": "TEXAS",
      "county": "Rockwall County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Dallas-Fort Worth, TX - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-rockwall-county-texas-dallas-fort-worth-tx-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-rockwall-county-texas-dallas-fort-worth-tx-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Rockwall County | 8-Hour Ozone (2008) | | Dallas-Fort Worth, TX - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "sacramento-metro-ca-severe-15",
      "state": "CALIFORNIA",
      "county": "Sacramento County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Sacramento Metro, CA - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-sacramento-county-california-sacramento-metro-ca-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-sacramento-county-california-sacramento-metro-ca-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Sacramento County | PM-2.5 (2006) | | Sacramento, CA - (Moderate) | 8-Hour Ozone (2008) | | Sacramento Metro, CA - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "philadelphia-atlantic-city-pa-nj-marginal",
      "state": "NEW JERSEY",
      "county": "Salem County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Philadelphia-Atlantic City, PA-NJ - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-salem-county-new-jersey-philadelphia-atlantic-city-pa-nj-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-salem-county-new-jersey-philadelphia-atlantic-city-pa-nj-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Salem County | 8-Hour Ozone (2008) | | Philadelphia-Atlantic City, PA-NJ - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "los-angeles-san-bernardino-counties-west-mojave-desert-ca-severe-15",
      "state": "CALIFORNIA",
      "county": "San Bernardino County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Los Angeles-San Bernardino Counties (West Mojave Desert), CA - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-san-bernardino-county-california-los-angeles-san-bernardino-counties-west-mojave-desert-ca-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-san-bernardino-county-california-los-angeles-san-bernardino-counties-west-mojave-desert-ca-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "San Bernardino County | PM-10 (1987) | * | San Bernardino County, CA - (Moderate) | PM-10 (1987) | * | Trona, CA - (Moderate) | PM-2.5 (1997) | * | Los Angeles-South Coast Air Basin, CA - (Moderate) | PM-2.5 (2006) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | PM-2.5 (2012) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | 8-Hour Ozone (2008) | * | Los Angeles-San Bernardino Counties (West Mojave Desert), CA - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "los-angeles-south-coast-air-basin-ca-extreme",
      "state": "CALIFORNIA",
      "county": "San Bernardino County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Los Angeles-South Coast Air Basin, CA - (Extreme)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-san-bernardino-county-california-los-angeles-south-coast-air-basin-ca-extreme",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-san-bernardino-county-california-los-angeles-south-coast-air-basin-ca-extreme/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "San Bernardino County | PM-10 (1987) | * | San Bernardino County, CA - (Moderate) | PM-10 (1987) | * | Trona, CA - (Moderate) | PM-2.5 (1997) | * | Los Angeles-South Coast Air Basin, CA - (Moderate) | PM-2.5 (2006) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | PM-2.5 (2012) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | 8-Hour Ozone (2008) | * | Los Angeles-San Bernardino Counties (West Mojave Desert), CA - (Severe 15) | 8-Hour Ozone (2008) | * | Los Angeles-South Coast Air Basin, CA - (Extreme)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "pechanga-band-of-luiseno-mission-indians-of-the-pechanga-reservation-ca-moderate",
      "state": "CALIFORNIA",
      "county": "San Diego County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-san-diego-county-california-pechanga-band-of-luiseno-mission-indians-of-the-pechanga-reservation-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-san-diego-county-california-pechanga-band-of-luiseno-mission-indians-of-the-pechanga-reservation-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "San Diego County | 8-Hour Ozone (2008) | * | Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-diego-county-ca-severe-15",
      "state": "CALIFORNIA",
      "county": "San Diego County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "San Diego County, CA - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-san-diego-county-california-san-diego-county-ca-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-san-diego-county-california-san-diego-county-ca-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "San Diego County | 8-Hour Ozone (2008) | * | Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation, CA - (Moderate) | 8-Hour Ozone (2008) | * | San Diego County, CA - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-francisco-bay-area-ca-marginal",
      "state": "CALIFORNIA",
      "county": "San Francisco County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "San Francisco Bay Area, CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-san-francisco-county-california-san-francisco-bay-area-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-san-francisco-county-california-san-francisco-bay-area-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "San Francisco County | PM-2.5 (2006) | | San Francisco Bay Area, CA - (Moderate) | 8-Hour Ozone (2008) | | San Francisco Bay Area, CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-extreme",
      "state": "CALIFORNIA",
      "county": "San Joaquin County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Extreme)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-san-joaquin-county-california-san-joaquin-valley-ca-extreme",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-san-joaquin-county-california-san-joaquin-valley-ca-extreme/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "San Joaquin County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2012) | | San Joaquin Valley, CA - (Serious) | 8-Hour Ozone (2008) | | San Joaquin Valley, CA - (Extreme)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-luis-obispo-eastern-san-luis-obispo-ca-marginal",
      "state": "CALIFORNIA",
      "county": "San Luis Obispo County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "San Luis Obispo (Eastern San Luis Obispo), CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-san-luis-obispo-county-california-san-luis-obispo-eastern-san-luis-obispo-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-san-luis-obispo-county-california-san-luis-obispo-eastern-san-luis-obispo-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "San Luis Obispo County | 8-Hour Ozone (2008) | * | San Luis Obispo (Eastern San Luis Obispo), CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-francisco-bay-area-ca-marginal",
      "state": "CALIFORNIA",
      "county": "San Mateo County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "San Francisco Bay Area, CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-san-mateo-county-california-san-francisco-bay-area-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-san-mateo-county-california-san-francisco-bay-area-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "San Mateo County | PM-2.5 (2006) | | San Francisco Bay Area, CA - (Moderate) | 8-Hour Ozone (2008) | | San Francisco Bay Area, CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-francisco-bay-area-ca-marginal",
      "state": "CALIFORNIA",
      "county": "Santa Clara County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "San Francisco Bay Area, CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-santa-clara-county-california-san-francisco-bay-area-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-santa-clara-county-california-san-francisco-bay-area-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Santa Clara County | PM-2.5 (2006) | | San Francisco Bay Area, CA - (Moderate) | 8-Hour Ozone (2008) | | San Francisco Bay Area, CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "sacramento-metro-ca-severe-15",
      "state": "CALIFORNIA",
      "county": "Solano County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Sacramento Metro, CA - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-solano-county-california-sacramento-metro-ca-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-solano-county-california-sacramento-metro-ca-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Solano County | PM-2.5 (2006) | * | Sacramento, CA - (Moderate) | PM-2.5 (2006) | * | San Francisco Bay Area, CA - (Moderate) | 8-Hour Ozone (2008) | * | Sacramento Metro, CA - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-francisco-bay-area-ca-marginal",
      "state": "CALIFORNIA",
      "county": "Solano County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "San Francisco Bay Area, CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-solano-county-california-san-francisco-bay-area-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-solano-county-california-san-francisco-bay-area-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Solano County | PM-2.5 (2006) | * | Sacramento, CA - (Moderate) | PM-2.5 (2006) | * | San Francisco Bay Area, CA - (Moderate) | 8-Hour Ozone (2008) | * | Sacramento Metro, CA - (Severe 15) | 8-Hour Ozone (2008) | * | San Francisco Bay Area, CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "state": "NEW JERSEY",
      "county": "Somerset County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-somerset-county-new-jersey-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-somerset-county-new-jersey-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Somerset County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-francisco-bay-area-ca-marginal",
      "state": "CALIFORNIA",
      "county": "Sonoma County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "San Francisco Bay Area, CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-sonoma-county-california-san-francisco-bay-area-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-sonoma-county-california-san-francisco-bay-area-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Sonoma County | PM-2.5 (2006) | * | San Francisco Bay Area, CA - (Moderate) | 8-Hour Ozone (2008) | * | San Francisco Bay Area, CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-extreme",
      "state": "CALIFORNIA",
      "county": "Stanislaus County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Extreme)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-stanislaus-county-california-san-joaquin-valley-ca-extreme",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-stanislaus-county-california-san-joaquin-valley-ca-extreme/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Stanislaus County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2012) | | San Joaquin Valley, CA - (Serious) | 8-Hour Ozone (2008) | | San Joaquin Valley, CA - (Extreme)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "upper-green-river-basin-area-wy-marginal",
      "state": "WYOMING",
      "county": "Sublette County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Upper Green River Basin Area, WY - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-sublette-county-wyoming-upper-green-river-basin-area-wy-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-sublette-county-wyoming-upper-green-river-basin-area-wy-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Sublette County | 8-Hour Ozone (2008) | | Upper Green River Basin Area, WY - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "state": "NEW YORK",
      "county": "Suffolk County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-suffolk-county-new-york-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-suffolk-county-new-york-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Suffolk County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "seaford-de-marginal",
      "state": "DELAWARE",
      "county": "Sussex County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Seaford, DE - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-sussex-county-delaware-seaford-de-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-sussex-county-delaware-seaford-de-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Sussex County | 8-Hour Ozone (2008) | | Seaford, DE - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "state": "NEW JERSEY",
      "county": "Sussex County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-sussex-county-new-jersey-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-sussex-county-new-jersey-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Sussex County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "sacramento-metro-ca-severe-15",
      "state": "CALIFORNIA",
      "county": "Sutter County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Sacramento Metro, CA - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-sutter-county-california-sacramento-metro-ca-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-sutter-county-california-sacramento-metro-ca-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Sutter County | 8-Hour Ozone (2008) | * | Sacramento Metro, CA - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "upper-green-river-basin-area-wy-marginal",
      "state": "WYOMING",
      "county": "Sweetwater County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Upper Green River Basin Area, WY - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-sweetwater-county-wyoming-upper-green-river-basin-area-wy-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-sweetwater-county-wyoming-upper-green-river-basin-area-wy-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Sweetwater County | 8-Hour Ozone (2008) | * | Upper Green River Basin Area, WY - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "dallas-fort-worth-tx-severe-15",
      "state": "TEXAS",
      "county": "Tarrant County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Dallas-Fort Worth, TX - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-tarrant-county-texas-dallas-fort-worth-tx-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-tarrant-county-texas-dallas-fort-worth-tx-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Tarrant County | 8-Hour Ozone (2008) | | Dallas-Fort Worth, TX - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "tuscan-buttes-ca-marginal",
      "state": "CALIFORNIA",
      "county": "Tehama County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Tuscan Buttes, CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-tehama-county-california-tuscan-buttes-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-tehama-county-california-tuscan-buttes-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Tehama County | 8-Hour Ozone (2008) | * | Tuscan Buttes, CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "greater-connecticut-ct-serious",
      "state": "CONNECTICUT",
      "county": "Tolland County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Greater Connecticut, CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-tolland-county-connecticut-greater-connecticut-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-tolland-county-connecticut-greater-connecticut-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Tolland County | 8-Hour Ozone (2008) | | Greater Connecticut, CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-extreme",
      "state": "CALIFORNIA",
      "county": "Tulare County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Extreme)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-tulare-county-california-san-joaquin-valley-ca-extreme",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-tulare-county-california-san-joaquin-valley-ca-extreme/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Tulare County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2012) | | San Joaquin Valley, CA - (Serious) | 8-Hour Ozone (2008) | | San Joaquin Valley, CA - (Extreme)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "state": "NEW JERSEY",
      "county": "Union County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-union-county-new-jersey-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-union-county-new-jersey-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Union County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "ventura-county-ca-serious",
      "state": "CALIFORNIA",
      "county": "Ventura County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Ventura County, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-ventura-county-california-ventura-county-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-ventura-county-california-ventura-county-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Ventura County | 8-Hour Ozone (2008) | * | Ventura County, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "houston-galveston-brazoria-tx-severe-15",
      "state": "TEXAS",
      "county": "Waller County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Houston-Galveston-Brazoria, TX - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-waller-county-texas-houston-galveston-brazoria-tx-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-waller-county-texas-houston-galveston-brazoria-tx-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Waller County | 8-Hour Ozone (2008) | | Houston-Galveston-Brazoria, TX - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "state": "NEW JERSEY",
      "county": "Warren County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-warren-county-new-jersey-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-warren-county-new-jersey-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Warren County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "pittsburgh-beaver-valley-pa-marginal",
      "state": "PENNSYLVANIA",
      "county": "Washington County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Pittsburgh-Beaver Valley, PA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-washington-county-pennsylvania-pittsburgh-beaver-valley-pa-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-washington-county-pennsylvania-pittsburgh-beaver-valley-pa-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Washington County | 8-Hour Ozone (2008) | | Pittsburgh-Beaver Valley, PA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "denver-boulder-greeley-ft-collins-loveland-co-severe-15",
      "state": "COLORADO",
      "county": "Weld County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-weld-county-colorado-denver-boulder-greeley-ft-collins-loveland-co-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-weld-county-colorado-denver-boulder-greeley-ft-collins-loveland-co-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Weld County | 8-Hour Ozone (2008) | * | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "state": "NEW YORK",
      "county": "Westchester County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-westchester-county-new-york-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-westchester-county-new-york-new-york-n-new-jersey-long-island-ny-nj-ct-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Westchester County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "pittsburgh-beaver-valley-pa-marginal",
      "state": "PENNSYLVANIA",
      "county": "Westmoreland County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Pittsburgh-Beaver Valley, PA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-westmoreland-county-pennsylvania-pittsburgh-beaver-valley-pa-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-westmoreland-county-pennsylvania-pittsburgh-beaver-valley-pa-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Westmoreland County | Sulfur Dioxide (2010) | * | Cambria-Westmoreland Area, PA | 8-Hour Ozone (2008) | | Pittsburgh-Beaver Valley, PA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "greater-connecticut-ct-serious",
      "state": "CONNECTICUT",
      "county": "Windham County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Greater Connecticut, CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-windham-county-connecticut-greater-connecticut-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-windham-county-connecticut-greater-connecticut-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Windham County | 8-Hour Ozone (2008) | | Greater Connecticut, CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "dallas-fort-worth-tx-severe-15",
      "state": "TEXAS",
      "county": "Wise County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Dallas-Fort Worth, TX - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-wise-county-texas-dallas-fort-worth-tx-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-wise-county-texas-dallas-fort-worth-tx-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Wise County | 8-Hour Ozone (2008) | | Dallas-Fort Worth, TX - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "sacramento-metro-ca-severe-15",
      "state": "CALIFORNIA",
      "county": "Yolo County",
      "pollutant_naaqs": "8-Hour Ozone (2008)",
      "nonattainment_area_name": "Sacramento Metro, CA - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2008-yolo-county-california-sacramento-metro-ca-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2008-yolo-county-california-sacramento-metro-ca-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Yolo County | PM-2.5 (2006) | * | Sacramento, CA - (Moderate) | 8-Hour Ozone (2008) | | Sacramento Metro, CA - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "denver-metro-north-front-range-co-serious",
      "state": "COLORADO",
      "county": "Adams County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Denver Metro/North Front Range, CO - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-adams-county-colorado-denver-metro-north-front-range-co-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-adams-county-colorado-denver-metro-north-front-range-co-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Adams County | 8-Hour Ozone (2008) | | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Severe 15) | 8-Hour Ozone (2015) | | Denver Metro/North Front Range, CO - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-francisco-bay-area-ca-marginal",
      "state": "CALIFORNIA",
      "county": "Alameda County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "San Francisco Bay Area, CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-alameda-county-california-san-francisco-bay-area-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-alameda-county-california-san-francisco-bay-area-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Alameda County | PM-2.5 (2006) | | San Francisco Bay Area, CA - (Moderate) | 8-Hour Ozone (2008) | | San Francisco Bay Area, CA - (Marginal) | 8-Hour Ozone (2015) | | San Francisco Bay Area, CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "washington-dc-md-va-moderate",
      "state": "VIRGINIA",
      "county": "Alexandria city",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Washington, DC-MD-VA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-alexandria-city-virginia-washington-dc-md-va-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-alexandria-city-virginia-washington-dc-md-va-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Alexandria city | 8-Hour Ozone (2015) | | Washington, DC-MD-VA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "allegan-county-mi-serious",
      "state": "MICHIGAN",
      "county": "Allegan County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Allegan County, MI - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-allegan-county-michigan-allegan-county-mi-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-allegan-county-michigan-allegan-county-mi-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Allegan County | 8-Hour Ozone (2015) | * | Allegan County, MI - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "amador-county-ca-marginal",
      "state": "CALIFORNIA",
      "county": "Amador County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Amador County, CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-amador-county-california-amador-county-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-amador-county-california-amador-county-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Amador County | 8-Hour Ozone (2015) | | Amador County, CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "baltimore-md-serious",
      "state": "MARYLAND",
      "county": "Anne Arundel County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Baltimore, MD - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-anne-arundel-county-maryland-baltimore-md-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-anne-arundel-county-maryland-baltimore-md-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Anne Arundel County | Sulfur Dioxide (2010) | * | Anne Arundel County and Baltimore County, MD | 8-Hour Ozone (2008) | | Baltimore, MD - (Moderate) | 8-Hour Ozone (2015) | | Baltimore, MD - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "denver-metro-north-front-range-co-serious",
      "state": "COLORADO",
      "county": "Arapahoe County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Denver Metro/North Front Range, CO - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-arapahoe-county-colorado-denver-metro-north-front-range-co-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-arapahoe-county-colorado-denver-metro-north-front-range-co-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Arapahoe County | 8-Hour Ozone (2008) | | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Severe 15) | 8-Hour Ozone (2015) | | Denver Metro/North Front Range, CO - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "washington-dc-md-va-moderate",
      "state": "VIRGINIA",
      "county": "Arlington County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Washington, DC-MD-VA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-arlington-county-virginia-washington-dc-md-va-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-arlington-county-virginia-washington-dc-md-va-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Arlington County | 8-Hour Ozone (2015) | | Washington, DC-MD-VA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "philadelphia-atlantic-city-pa-nj-serious",
      "state": "NEW JERSEY",
      "county": "Atlantic County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Philadelphia-Atlantic City, PA-NJ - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-atlantic-county-new-jersey-philadelphia-atlantic-city-pa-nj-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-atlantic-county-new-jersey-philadelphia-atlantic-city-pa-nj-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Atlantic County | 8-Hour Ozone (2008) | | Philadelphia-Atlantic City, PA-NJ - (Marginal) | 8-Hour Ozone (2015) | | Philadelphia-Atlantic City, PA-NJ - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "baltimore-md-serious",
      "state": "MARYLAND",
      "county": "Baltimore city",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Baltimore, MD - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-baltimore-city-maryland-baltimore-md-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-baltimore-city-maryland-baltimore-md-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Baltimore city | 8-Hour Ozone (2008) | | Baltimore, MD - (Moderate) | 8-Hour Ozone (2015) | | Baltimore, MD - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "baltimore-md-serious",
      "state": "MARYLAND",
      "county": "Baltimore County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Baltimore, MD - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-baltimore-county-maryland-baltimore-md-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-baltimore-county-maryland-baltimore-md-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Baltimore County | Sulfur Dioxide (2010) | * | Anne Arundel County and Baltimore County, MD | 8-Hour Ozone (2008) | | Baltimore, MD - (Moderate) | 8-Hour Ozone (2015) | | Baltimore, MD - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "state": "NEW JERSEY",
      "county": "Bergen County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-bergen-county-new-jersey-new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-bergen-county-new-jersey-new-york-northern-new-jersey-long-island-ny-nj-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Bergen County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15) | 8-Hour Ozone (2015) | | New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "berrien-county-mi-serious",
      "state": "MICHIGAN",
      "county": "Berrien County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Berrien County, MI - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-berrien-county-michigan-berrien-county-mi-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-berrien-county-michigan-berrien-county-mi-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Berrien County | 8-Hour Ozone (2015) | | Berrien County, MI - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-antonio-tx-serious",
      "state": "TEXAS",
      "county": "Bexar County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "San Antonio, TX - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-bexar-county-texas-san-antonio-tx-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-bexar-county-texas-san-antonio-tx-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Bexar County | 8-Hour Ozone (2015) | | San Antonio, TX - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "denver-metro-north-front-range-co-serious",
      "state": "COLORADO",
      "county": "Boulder County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Denver Metro/North Front Range, CO - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-boulder-county-colorado-denver-metro-north-front-range-co-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-boulder-county-colorado-denver-metro-north-front-range-co-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Boulder County | 8-Hour Ozone (2008) | | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Severe 15) | 8-Hour Ozone (2015) | | Denver Metro/North Front Range, CO - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "houston-galveston-brazoria-tx-serious",
      "state": "TEXAS",
      "county": "Brazoria County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Houston-Galveston-Brazoria, TX - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-brazoria-county-texas-houston-galveston-brazoria-tx-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-brazoria-county-texas-houston-galveston-brazoria-tx-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Brazoria County | 8-Hour Ozone (2008) | | Houston-Galveston-Brazoria, TX - (Severe 15) | 8-Hour Ozone (2015) | | Houston-Galveston-Brazoria, TX - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "state": "NEW YORK",
      "county": "Bronx County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-bronx-county-new-york-new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-bronx-county-new-york-new-york-northern-new-jersey-long-island-ny-nj-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Bronx County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15) | 8-Hour Ozone (2015) | | New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "denver-metro-north-front-range-co-serious",
      "state": "COLORADO",
      "county": "Broomfield County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Denver Metro/North Front Range, CO - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-broomfield-county-colorado-denver-metro-north-front-range-co-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-broomfield-county-colorado-denver-metro-north-front-range-co-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Broomfield County | 8-Hour Ozone (2008) | | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Severe 15) | 8-Hour Ozone (2015) | | Denver Metro/North Front Range, CO - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "philadelphia-atlantic-city-pa-nj-serious",
      "state": "PENNSYLVANIA",
      "county": "Bucks County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Philadelphia-Atlantic City, PA-NJ - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-bucks-county-pennsylvania-philadelphia-atlantic-city-pa-nj-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-bucks-county-pennsylvania-philadelphia-atlantic-city-pa-nj-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Bucks County | 8-Hour Ozone (2008) | | Philadelphia-Atlantic City, PA-NJ - (Marginal) | 8-Hour Ozone (2015) | | Philadelphia-Atlantic City, PA-NJ - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "louisville-ky-in-moderate",
      "state": "KENTUCKY",
      "county": "Bullitt County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Louisville, KY-IN - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-bullitt-county-kentucky-louisville-ky-in-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-bullitt-county-kentucky-louisville-ky-in-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Bullitt County | 8-Hour Ozone (2015) | | Louisville, KY-IN - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "philadelphia-atlantic-city-pa-nj-serious",
      "state": "NEW JERSEY",
      "county": "Burlington County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Philadelphia-Atlantic City, PA-NJ - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-burlington-county-new-jersey-philadelphia-atlantic-city-pa-nj-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-burlington-county-new-jersey-philadelphia-atlantic-city-pa-nj-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Burlington County | 8-Hour Ozone (2008) | | Philadelphia-Atlantic City, PA-NJ - (Marginal) | 8-Hour Ozone (2015) | | Philadelphia-Atlantic City, PA-NJ - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "butte-county-ca-marginal",
      "state": "CALIFORNIA",
      "county": "Butte County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Butte County, CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-butte-county-california-butte-county-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-butte-county-california-butte-county-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Butte County | 8-Hour Ozone (2008) | | Chico (Butte County), CA - (Marginal) | 8-Hour Ozone (2015) | | Butte County, CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "calaveras-county-ca-marginal",
      "state": "CALIFORNIA",
      "county": "Calaveras County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Calaveras County, CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-calaveras-county-california-calaveras-county-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-calaveras-county-california-calaveras-county-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Calaveras County | 8-Hour Ozone (2008) | | Calaveras County, CA - (Marginal) | 8-Hour Ozone (2015) | | Calaveras County, CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "washington-dc-md-va-moderate",
      "state": "MARYLAND",
      "county": "Calvert County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Washington, DC-MD-VA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-calvert-county-maryland-washington-dc-md-va-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-calvert-county-maryland-washington-dc-md-va-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Calvert County | 8-Hour Ozone (2015) | | Washington, DC-MD-VA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "philadelphia-atlantic-city-pa-nj-serious",
      "state": "NEW JERSEY",
      "county": "Camden County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Philadelphia-Atlantic City, PA-NJ - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-camden-county-new-jersey-philadelphia-atlantic-city-pa-nj-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-camden-county-new-jersey-philadelphia-atlantic-city-pa-nj-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Camden County | 8-Hour Ozone (2008) | | Philadelphia-Atlantic City, PA-NJ - (Marginal) | 8-Hour Ozone (2015) | | Philadelphia-Atlantic City, PA-NJ - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "philadelphia-atlantic-city-pa-nj-serious",
      "state": "NEW JERSEY",
      "county": "Cape May County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Philadelphia-Atlantic City, PA-NJ - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-cape-may-county-new-jersey-philadelphia-atlantic-city-pa-nj-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-cape-may-county-new-jersey-philadelphia-atlantic-city-pa-nj-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Cape May County | 8-Hour Ozone (2008) | | Philadelphia-Atlantic City, PA-NJ - (Marginal) | 8-Hour Ozone (2015) | | Philadelphia-Atlantic City, PA-NJ - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "baltimore-md-serious",
      "state": "MARYLAND",
      "county": "Carroll County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Baltimore, MD - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-carroll-county-maryland-baltimore-md-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-carroll-county-maryland-baltimore-md-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Carroll County | 8-Hour Ozone (2008) | | Baltimore, MD - (Moderate) | 8-Hour Ozone (2015) | | Baltimore, MD - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "cecil-county-md-serious",
      "state": "MARYLAND",
      "county": "Cecil County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Cecil County, MD - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-cecil-county-maryland-cecil-county-md-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-cecil-county-maryland-cecil-county-md-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Cecil County | 8-Hour Ozone (2008) | | Cecil County, MD - (Marginal) | 8-Hour Ozone (2015) | | Cecil County, MD - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "houston-galveston-brazoria-tx-serious",
      "state": "TEXAS",
      "county": "Chambers County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Houston-Galveston-Brazoria, TX - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-chambers-county-texas-houston-galveston-brazoria-tx-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-chambers-county-texas-houston-galveston-brazoria-tx-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Chambers County | 8-Hour Ozone (2008) | | Houston-Galveston-Brazoria, TX - (Severe 15) | 8-Hour Ozone (2015) | | Houston-Galveston-Brazoria, TX - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "washington-dc-md-va-moderate",
      "state": "MARYLAND",
      "county": "Charles County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Washington, DC-MD-VA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-charles-county-maryland-washington-dc-md-va-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-charles-county-maryland-washington-dc-md-va-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Charles County | 8-Hour Ozone (2015) | | Washington, DC-MD-VA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "philadelphia-atlantic-city-pa-nj-serious",
      "state": "PENNSYLVANIA",
      "county": "Chester County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Philadelphia-Atlantic City, PA-NJ - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-chester-county-pennsylvania-philadelphia-atlantic-city-pa-nj-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-chester-county-pennsylvania-philadelphia-atlantic-city-pa-nj-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Chester County | 8-Hour Ozone (2008) | | Philadelphia-Atlantic City, PA-NJ - (Marginal) | 8-Hour Ozone (2015) | | Philadelphia-Atlantic City, PA-NJ - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "las-vegas-nv-serious",
      "state": "NEVADA",
      "county": "Clark County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Las Vegas, NV - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-clark-county-nevada-las-vegas-nv-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-clark-county-nevada-las-vegas-nv-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Clark County | 8-Hour Ozone (2015) | * | Las Vegas, NV - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "dallas-fort-worth-tx-serious",
      "state": "TEXAS",
      "county": "Collin County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Dallas-Fort Worth, TX - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-collin-county-texas-dallas-fort-worth-tx-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-collin-county-texas-dallas-fort-worth-tx-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Collin County | 8-Hour Ozone (2008) | | Dallas-Fort Worth, TX - (Severe 15) | 8-Hour Ozone (2015) | | Dallas-Fort Worth, TX - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-francisco-bay-area-ca-marginal",
      "state": "CALIFORNIA",
      "county": "Contra Costa County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "San Francisco Bay Area, CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-contra-costa-county-california-san-francisco-bay-area-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-contra-costa-county-california-san-francisco-bay-area-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Contra Costa County | PM-2.5 (2006) | | San Francisco Bay Area, CA - (Moderate) | 8-Hour Ozone (2008) | | San Francisco Bay Area, CA - (Marginal) | 8-Hour Ozone (2015) | | San Francisco Bay Area, CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "chicago-il-in-wi-serious",
      "state": "ILLINOIS",
      "county": "Cook County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Chicago, IL-IN-WI - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-cook-county-illinois-chicago-il-in-wi-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-cook-county-illinois-chicago-il-in-wi-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Cook County | 8-Hour Ozone (2015) | | Chicago, IL-IN-WI - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "philadelphia-atlantic-city-pa-nj-serious",
      "state": "NEW JERSEY",
      "county": "Cumberland County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Philadelphia-Atlantic City, PA-NJ - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-cumberland-county-new-jersey-philadelphia-atlantic-city-pa-nj-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-cumberland-county-new-jersey-philadelphia-atlantic-city-pa-nj-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Cumberland County | 8-Hour Ozone (2008) | | Philadelphia-Atlantic City, PA-NJ - (Marginal) | 8-Hour Ozone (2015) | | Philadelphia-Atlantic City, PA-NJ - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "dallas-fort-worth-tx-serious",
      "state": "TEXAS",
      "county": "Dallas County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Dallas-Fort Worth, TX - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-dallas-county-texas-dallas-fort-worth-tx-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-dallas-county-texas-dallas-fort-worth-tx-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Dallas County | 8-Hour Ozone (2008) | | Dallas-Fort Worth, TX - (Severe 15) | 8-Hour Ozone (2015) | | Dallas-Fort Worth, TX - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "northern-wasatch-front-ut-serious",
      "state": "UTAH",
      "county": "Davis County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Northern Wasatch Front, UT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-davis-county-utah-northern-wasatch-front-ut-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-davis-county-utah-northern-wasatch-front-ut-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Davis County | 8-Hour Ozone (2015) | | Northern Wasatch Front, UT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "philadelphia-atlantic-city-pa-nj-serious",
      "state": "PENNSYLVANIA",
      "county": "Delaware County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Philadelphia-Atlantic City, PA-NJ - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-delaware-county-pennsylvania-philadelphia-atlantic-city-pa-nj-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-delaware-county-pennsylvania-philadelphia-atlantic-city-pa-nj-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Delaware County | 8-Hour Ozone (2008) | | Philadelphia-Atlantic City, PA-NJ - (Marginal) | 8-Hour Ozone (2015) | | Philadelphia-Atlantic City, PA-NJ - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "dallas-fort-worth-tx-serious",
      "state": "TEXAS",
      "county": "Denton County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Dallas-Fort Worth, TX - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-denton-county-texas-dallas-fort-worth-tx-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-denton-county-texas-dallas-fort-worth-tx-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Denton County | 8-Hour Ozone (2008) | | Dallas-Fort Worth, TX - (Severe 15) | 8-Hour Ozone (2015) | | Dallas-Fort Worth, TX - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "denver-metro-north-front-range-co-serious",
      "state": "COLORADO",
      "county": "Denver County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Denver Metro/North Front Range, CO - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-denver-county-colorado-denver-metro-north-front-range-co-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-denver-county-colorado-denver-metro-north-front-range-co-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Denver County | 8-Hour Ozone (2008) | | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Severe 15) | 8-Hour Ozone (2015) | | Denver Metro/North Front Range, CO - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "washington-dc-md-va-moderate",
      "state": "DISTRICT OF COLUMBIA",
      "county": "District of Columbia",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Washington, DC-MD-VA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-district-of-columbia-district-of-columbia-washington-dc-md-va-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-district-of-columbia-district-of-columbia-washington-dc-md-va-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "District of Columbia | 8-Hour Ozone (2015) | | Washington, DC-MD-VA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "el-paso-las-cruces-tx-nm-marginal",
      "state": "NEW MEXICO",
      "county": "Dona Ana County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "El Paso-Las Cruces, TX-NM - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-dona-ana-county-new-mexico-el-paso-las-cruces-tx-nm-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-dona-ana-county-new-mexico-el-paso-las-cruces-tx-nm-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Dona Ana County | PM-10 (1987) | * | Dona Ana County; Anthony, NM - (Moderate) | 8-Hour Ozone (2015) | * | El Paso-Las Cruces, TX-NM - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "denver-metro-north-front-range-co-serious",
      "state": "COLORADO",
      "county": "Douglas County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Denver Metro/North Front Range, CO - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-douglas-county-colorado-denver-metro-north-front-range-co-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-douglas-county-colorado-denver-metro-north-front-range-co-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Douglas County | 8-Hour Ozone (2008) | | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Severe 15) | 8-Hour Ozone (2015) | | Denver Metro/North Front Range, CO - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "uinta-basin-ut-marginal",
      "state": "UTAH",
      "county": "Duchesne County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Uinta Basin, UT - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-duchesne-county-utah-uinta-basin-ut-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-duchesne-county-utah-uinta-basin-ut-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Duchesne County | 8-Hour Ozone (2015) | * | Uinta Basin, UT - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "chicago-il-in-wi-serious",
      "state": "ILLINOIS",
      "county": "DuPage County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Chicago, IL-IN-WI - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-dupage-county-illinois-chicago-il-in-wi-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-dupage-county-illinois-chicago-il-in-wi-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "DuPage County | 8-Hour Ozone (2015) | | Chicago, IL-IN-WI - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "sacramento-metro-ca-serious",
      "state": "CALIFORNIA",
      "county": "El Dorado County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Sacramento Metro, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-el-dorado-county-california-sacramento-metro-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-el-dorado-county-california-sacramento-metro-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "El Dorado County | PM-2.5 (2006) | * | Sacramento, CA - (Moderate) | 8-Hour Ozone (2008) | * | Sacramento Metro, CA - (Severe 15) | 8-Hour Ozone (2015) | * | Sacramento Metro, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "el-paso-las-cruces-tx-nm-marginal",
      "state": "TEXAS",
      "county": "El Paso County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "El Paso-Las Cruces, TX-NM - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-el-paso-county-texas-el-paso-las-cruces-tx-nm-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-el-paso-county-texas-el-paso-las-cruces-tx-nm-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "El Paso County | PM-10 (1987) | * | El Paso County, TX - (Moderate) | 8-Hour Ozone (2015) | | El Paso-Las Cruces, TX-NM - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "dallas-fort-worth-tx-serious",
      "state": "TEXAS",
      "county": "Ellis County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Dallas-Fort Worth, TX - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-ellis-county-texas-dallas-fort-worth-tx-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-ellis-county-texas-dallas-fort-worth-tx-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Ellis County | 8-Hour Ozone (2008) | | Dallas-Fort Worth, TX - (Severe 15) | 8-Hour Ozone (2015) | | Dallas-Fort Worth, TX - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "state": "NEW JERSEY",
      "county": "Essex County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-essex-county-new-jersey-new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-essex-county-new-jersey-new-york-northern-new-jersey-long-island-ny-nj-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Essex County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15) | 8-Hour Ozone (2015) | | New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "washington-dc-md-va-moderate",
      "state": "VIRGINIA",
      "county": "Fairfax city",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Washington, DC-MD-VA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-fairfax-city-virginia-washington-dc-md-va-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-fairfax-city-virginia-washington-dc-md-va-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Fairfax city | 8-Hour Ozone (2015) | | Washington, DC-MD-VA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "washington-dc-md-va-moderate",
      "state": "VIRGINIA",
      "county": "Fairfax County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Washington, DC-MD-VA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-fairfax-county-virginia-washington-dc-md-va-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-fairfax-county-virginia-washington-dc-md-va-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Fairfax County | 8-Hour Ozone (2015) | | Washington, DC-MD-VA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "state": "CONNECTICUT",
      "county": "Fairfield County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-fairfield-county-connecticut-new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-fairfield-county-connecticut-new-york-northern-new-jersey-long-island-ny-nj-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Fairfield County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15) | 8-Hour Ozone (2015) | | New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "washington-dc-md-va-moderate",
      "state": "VIRGINIA",
      "county": "Falls Church city",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Washington, DC-MD-VA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-falls-church-city-virginia-washington-dc-md-va-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-falls-church-city-virginia-washington-dc-md-va-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Falls Church city | 8-Hour Ozone (2015) | | Washington, DC-MD-VA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "houston-galveston-brazoria-tx-serious",
      "state": "TEXAS",
      "county": "Fort Bend County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Houston-Galveston-Brazoria, TX - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-fort-bend-county-texas-houston-galveston-brazoria-tx-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-fort-bend-county-texas-houston-galveston-brazoria-tx-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Fort Bend County | 8-Hour Ozone (2008) | | Houston-Galveston-Brazoria, TX - (Severe 15) | 8-Hour Ozone (2015) | | Houston-Galveston-Brazoria, TX - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "st-louis-mo-il-serious",
      "state": "MISSOURI",
      "county": "Franklin County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "St. Louis, MO-IL - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-franklin-county-missouri-st-louis-mo-il-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-franklin-county-missouri-st-louis-mo-il-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Franklin County | 8-Hour Ozone (2015) | * | St. Louis, MO-IL - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "washington-dc-md-va-moderate",
      "state": "MARYLAND",
      "county": "Frederick County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Washington, DC-MD-VA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-frederick-county-maryland-washington-dc-md-va-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-frederick-county-maryland-washington-dc-md-va-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Frederick County | 8-Hour Ozone (2015) | | Washington, DC-MD-VA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-extreme",
      "state": "CALIFORNIA",
      "county": "Fresno County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Extreme)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-fresno-county-california-san-joaquin-valley-ca-extreme",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-fresno-county-california-san-joaquin-valley-ca-extreme/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Fresno County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2012) | | San Joaquin Valley, CA - (Serious) | 8-Hour Ozone (2008) | | San Joaquin Valley, CA - (Extreme) | 8-Hour Ozone (2015) | | San Joaquin Valley, CA - (Extreme)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "houston-galveston-brazoria-tx-serious",
      "state": "TEXAS",
      "county": "Galveston County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Houston-Galveston-Brazoria, TX - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-galveston-county-texas-houston-galveston-brazoria-tx-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-galveston-county-texas-houston-galveston-brazoria-tx-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Galveston County | 8-Hour Ozone (2008) | | Houston-Galveston-Brazoria, TX - (Severe 15) | 8-Hour Ozone (2015) | | Houston-Galveston-Brazoria, TX - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "phoenix-mesa-az-moderate",
      "state": "ARIZONA",
      "county": "Gila County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Phoenix-Mesa, AZ - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-gila-county-arizona-phoenix-mesa-az-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-gila-county-arizona-phoenix-mesa-az-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Gila County | Lead (2008) | * | Hayden, AZ | PM-10 (1987) | * | Hayden, AZ - (Moderate) | PM-10 (1987) | * | Miami, AZ - (Moderate) | Sulfur Dioxide (2010) | * | Hayden, AZ | Sulfur Dioxide (2010) | * | Miami, AZ | 8-Hour Ozone (2015) | * | Phoenix-Mesa, AZ - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "philadelphia-atlantic-city-pa-nj-serious",
      "state": "NEW JERSEY",
      "county": "Gloucester County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Philadelphia-Atlantic City, PA-NJ - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-gloucester-county-new-jersey-philadelphia-atlantic-city-pa-nj-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-gloucester-county-new-jersey-philadelphia-atlantic-city-pa-nj-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Gloucester County | 8-Hour Ozone (2008) | | Philadelphia-Atlantic City, PA-NJ - (Marginal) | 8-Hour Ozone (2015) | | Philadelphia-Atlantic City, PA-NJ - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "chicago-il-in-wi-serious",
      "state": "ILLINOIS",
      "county": "Grundy County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Chicago, IL-IN-WI - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-grundy-county-illinois-chicago-il-in-wi-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-grundy-county-illinois-chicago-il-in-wi-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Grundy County | 8-Hour Ozone (2015) | * | Chicago, IL-IN-WI - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "baltimore-md-serious",
      "state": "MARYLAND",
      "county": "Harford County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Baltimore, MD - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-harford-county-maryland-baltimore-md-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-harford-county-maryland-baltimore-md-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Harford County | 8-Hour Ozone (2008) | | Baltimore, MD - (Moderate) | 8-Hour Ozone (2015) | | Baltimore, MD - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "houston-galveston-brazoria-tx-serious",
      "state": "TEXAS",
      "county": "Harris County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Houston-Galveston-Brazoria, TX - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-harris-county-texas-houston-galveston-brazoria-tx-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-harris-county-texas-houston-galveston-brazoria-tx-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Harris County | 8-Hour Ozone (2008) | | Houston-Galveston-Brazoria, TX - (Severe 15) | 8-Hour Ozone (2015) | | Houston-Galveston-Brazoria, TX - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "greater-connecticut-ct-serious",
      "state": "CONNECTICUT",
      "county": "Hartford County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Greater Connecticut, CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-hartford-county-connecticut-greater-connecticut-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-hartford-county-connecticut-greater-connecticut-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Hartford County | 8-Hour Ozone (2008) | | Greater Connecticut, CT - (Serious) | 8-Hour Ozone (2015) | | Greater Connecticut, CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "baltimore-md-serious",
      "state": "MARYLAND",
      "county": "Howard County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Baltimore, MD - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-howard-county-maryland-baltimore-md-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-howard-county-maryland-baltimore-md-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Howard County | 8-Hour Ozone (2008) | | Baltimore, MD - (Moderate) | 8-Hour Ozone (2015) | | Baltimore, MD - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "state": "NEW JERSEY",
      "county": "Hudson County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-hudson-county-new-jersey-new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-hudson-county-new-jersey-new-york-northern-new-jersey-long-island-ny-nj-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Hudson County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15) | 8-Hour Ozone (2015) | | New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "state": "NEW JERSEY",
      "county": "Hunterdon County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-hunterdon-county-new-jersey-new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-hunterdon-county-new-jersey-new-york-northern-new-jersey-long-island-ny-nj-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Hunterdon County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15) | 8-Hour Ozone (2015) | | New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "imperial-county-ca-marginal",
      "state": "CALIFORNIA",
      "county": "Imperial County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Imperial County, CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-imperial-county-california-imperial-county-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-imperial-county-california-imperial-county-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Imperial County | PM-2.5 (2006) | * | Imperial County, CA - (Moderate) | PM-2.5 (2012) | * | Imperial County, CA - (Moderate) | 8-Hour Ozone (2008) | | Imperial County, CA - (Moderate) | 8-Hour Ozone (2015) | | Imperial County, CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "denver-metro-north-front-range-co-serious",
      "state": "COLORADO",
      "county": "Jefferson County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Denver Metro/North Front Range, CO - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-jefferson-county-colorado-denver-metro-north-front-range-co-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-jefferson-county-colorado-denver-metro-north-front-range-co-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Jefferson County | 8-Hour Ozone (2008) | | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Severe 15) | 8-Hour Ozone (2015) | | Denver Metro/North Front Range, CO - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "louisville-ky-in-moderate",
      "state": "KENTUCKY",
      "county": "Jefferson County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Louisville, KY-IN - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-jefferson-county-kentucky-louisville-ky-in-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-jefferson-county-kentucky-louisville-ky-in-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Jefferson County | 8-Hour Ozone (2015) | | Louisville, KY-IN - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "st-louis-mo-il-serious",
      "state": "MISSOURI",
      "county": "Jefferson County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "St. Louis, MO-IL - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-jefferson-county-missouri-st-louis-mo-il-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-jefferson-county-missouri-st-louis-mo-il-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Jefferson County | Lead (1978) | * | Jefferson County (part); Herculaneum, MO | Lead (2008) | * | Jefferson County, MO | 8-Hour Ozone (2015) | | St. Louis, MO-IL - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "dallas-fort-worth-tx-serious",
      "state": "TEXAS",
      "county": "Johnson County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Dallas-Fort Worth, TX - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-johnson-county-texas-dallas-fort-worth-tx-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-johnson-county-texas-dallas-fort-worth-tx-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Johnson County | 8-Hour Ozone (2008) | | Dallas-Fort Worth, TX - (Severe 15) | 8-Hour Ozone (2015) | | Dallas-Fort Worth, TX - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "chicago-il-in-wi-serious",
      "state": "ILLINOIS",
      "county": "Kane County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Chicago, IL-IN-WI - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-kane-county-illinois-chicago-il-in-wi-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-kane-county-illinois-chicago-il-in-wi-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Kane County | 8-Hour Ozone (2015) | | Chicago, IL-IN-WI - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "dallas-fort-worth-tx-serious",
      "state": "TEXAS",
      "county": "Kaufman County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Dallas-Fort Worth, TX - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-kaufman-county-texas-dallas-fort-worth-tx-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-kaufman-county-texas-dallas-fort-worth-tx-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Kaufman County | 8-Hour Ozone (2008) | | Dallas-Fort Worth, TX - (Severe 15) | 8-Hour Ozone (2015) | | Dallas-Fort Worth, TX - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "chicago-il-in-wi-serious",
      "state": "ILLINOIS",
      "county": "Kendall County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Chicago, IL-IN-WI - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-kendall-county-illinois-chicago-il-in-wi-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-kendall-county-illinois-chicago-il-in-wi-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Kendall County | 8-Hour Ozone (2015) | * | Chicago, IL-IN-WI - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "chicago-il-in-wi-serious",
      "state": "WISCONSIN",
      "county": "Kenosha County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Chicago, IL-IN-WI - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-kenosha-county-wisconsin-chicago-il-in-wi-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-kenosha-county-wisconsin-chicago-il-in-wi-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Kenosha County | 8-Hour Ozone (2015) | * | Chicago, IL-IN-WI - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "kern-county-eastern-kern-ca-serious",
      "state": "CALIFORNIA",
      "county": "Kern County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Kern County (Eastern Kern), CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-kern-county-california-kern-county-eastern-kern-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-kern-county-california-kern-county-eastern-kern-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Kern County | PM-10 (1987) | * | East Kern County, CA - (Serious) | PM-2.5 (1997) | * | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | * | San Joaquin Valley, CA - (Serious) | PM-2.5 (2012) | * | San Joaquin Valley, CA - (Serious) | 8-Hour Ozone (2008) | * | Kern County (Eastern Kern), CA - (Severe 15) | 8-Hour Ozone (2008) | * | San Joaquin Valley, CA - (Extreme) | 8-Hour Ozone (2015) | * | Kern County (Eastern Kern), CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-extreme",
      "state": "CALIFORNIA",
      "county": "Kern County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Extreme)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-kern-county-california-san-joaquin-valley-ca-extreme",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-kern-county-california-san-joaquin-valley-ca-extreme/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Kern County | PM-10 (1987) | * | East Kern County, CA - (Serious) | PM-2.5 (1997) | * | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | * | San Joaquin Valley, CA - (Serious) | PM-2.5 (2012) | * | San Joaquin Valley, CA - (Serious) | 8-Hour Ozone (2008) | * | Kern County (Eastern Kern), CA - (Severe 15) | 8-Hour Ozone (2008) | * | San Joaquin Valley, CA - (Extreme) | 8-Hour Ozone (2015) | * | Kern County (Eastern Kern), CA - (Serious) | 8-Hour Ozone (2015) | * | San Joaquin Valley, CA - (Extreme)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-extreme",
      "state": "CALIFORNIA",
      "county": "Kings County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Extreme)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-kings-county-california-san-joaquin-valley-ca-extreme",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-kings-county-california-san-joaquin-valley-ca-extreme/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Kings County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2012) | | San Joaquin Valley, CA - (Serious) | 8-Hour Ozone (2008) | | San Joaquin Valley, CA - (Extreme) | 8-Hour Ozone (2015) | | San Joaquin Valley, CA - (Extreme)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "state": "NEW YORK",
      "county": "Kings County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-kings-county-new-york-new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-kings-county-new-york-new-york-northern-new-jersey-long-island-ny-nj-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Kings County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15) | 8-Hour Ozone (2015) | | New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "chicago-il-in-wi-serious",
      "state": "ILLINOIS",
      "county": "Lake County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Chicago, IL-IN-WI - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-lake-county-illinois-chicago-il-in-wi-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-lake-county-illinois-chicago-il-in-wi-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Lake County | 8-Hour Ozone (2015) | | Chicago, IL-IN-WI - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "chicago-il-in-wi-serious",
      "state": "INDIANA",
      "county": "Lake County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Chicago, IL-IN-WI - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-lake-county-indiana-chicago-il-in-wi-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-lake-county-indiana-chicago-il-in-wi-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Lake County | 8-Hour Ozone (2015) | * | Chicago, IL-IN-WI - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "denver-metro-north-front-range-co-serious",
      "state": "COLORADO",
      "county": "Larimer County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Denver Metro/North Front Range, CO - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-larimer-county-colorado-denver-metro-north-front-range-co-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-larimer-county-colorado-denver-metro-north-front-range-co-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Larimer County | 8-Hour Ozone (2008) | * | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Severe 15) | 8-Hour Ozone (2015) | * | Denver Metro/North Front Range, CO - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "greater-connecticut-ct-serious",
      "state": "CONNECTICUT",
      "county": "Litchfield County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Greater Connecticut, CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-litchfield-county-connecticut-greater-connecticut-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-litchfield-county-connecticut-greater-connecticut-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Litchfield County | 8-Hour Ozone (2008) | | Greater Connecticut, CT - (Serious) | 8-Hour Ozone (2015) | | Greater Connecticut, CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "detroit-mi-moderate",
      "state": "MICHIGAN",
      "county": "Livingston County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Detroit, MI - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-livingston-county-michigan-detroit-mi-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-livingston-county-michigan-detroit-mi-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Livingston County | 8-Hour Ozone (2015) | | Detroit, MI - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "los-angeles-san-bernardino-counties-west-mojave-desert-ca-severe-15",
      "state": "CALIFORNIA",
      "county": "Los Angeles County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Los Angeles-San Bernardino Counties (West Mojave Desert), CA - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-los-angeles-county-california-los-angeles-san-bernardino-counties-west-mojave-desert-ca-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-los-angeles-county-california-los-angeles-san-bernardino-counties-west-mojave-desert-ca-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Los Angeles County | Lead (2008) | * | Los Angeles County-South Coast Air Basin, CA | PM-2.5 (1997) | * | Los Angeles-South Coast Air Basin, CA - (Moderate) | PM-2.5 (2006) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | PM-2.5 (2012) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | 8-Hour Ozone (2008) | * | Los Angeles-San Bernardino Counties (West Mojave Desert), CA - (Severe 15) | 8-Hour Ozone (2008) | * | Los Angeles-South Coast Air Basin, CA - (Extreme) | 8-Hour Ozone (2015) | * | Los Angeles-San Bernardino Counties (West Mojave Desert), CA - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "los-angeles-south-coast-air-basin-ca-extreme",
      "state": "CALIFORNIA",
      "county": "Los Angeles County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Los Angeles-South Coast Air Basin, CA - (Extreme)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-los-angeles-county-california-los-angeles-south-coast-air-basin-ca-extreme",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-los-angeles-county-california-los-angeles-south-coast-air-basin-ca-extreme/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Los Angeles County | Lead (2008) | * | Los Angeles County-South Coast Air Basin, CA | PM-2.5 (1997) | * | Los Angeles-South Coast Air Basin, CA - (Moderate) | PM-2.5 (2006) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | PM-2.5 (2012) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | 8-Hour Ozone (2008) | * | Los Angeles-San Bernardino Counties (West Mojave Desert), CA - (Severe 15) | 8-Hour Ozone (2008) | * | Los Angeles-South Coast Air Basin, CA - (Extreme) | 8-Hour Ozone (2015) | * | Los Angeles-San Bernardino Counties (West Mojave Desert), CA - (Severe 15) | 8-Hour Ozone (2015) | * | Los Angeles-South Coast Air Basin, CA - (Extreme)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "washington-dc-md-va-moderate",
      "state": "VIRGINIA",
      "county": "Loudoun County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Washington, DC-MD-VA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-loudoun-county-virginia-washington-dc-md-va-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-loudoun-county-virginia-washington-dc-md-va-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Loudoun County | 8-Hour Ozone (2015) | | Washington, DC-MD-VA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "detroit-mi-moderate",
      "state": "MICHIGAN",
      "county": "Macomb County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Detroit, MI - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-macomb-county-michigan-detroit-mi-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-macomb-county-michigan-detroit-mi-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Macomb County | 8-Hour Ozone (2015) | | Detroit, MI - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-extreme",
      "state": "CALIFORNIA",
      "county": "Madera County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Extreme)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-madera-county-california-san-joaquin-valley-ca-extreme",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-madera-county-california-san-joaquin-valley-ca-extreme/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Madera County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2012) | | San Joaquin Valley, CA - (Serious) | 8-Hour Ozone (2008) | | San Joaquin Valley, CA - (Extreme) | 8-Hour Ozone (2015) | | San Joaquin Valley, CA - (Extreme)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "st-louis-mo-il-serious",
      "state": "ILLINOIS",
      "county": "Madison County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "St. Louis, MO-IL - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-madison-county-illinois-st-louis-mo-il-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-madison-county-illinois-st-louis-mo-il-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Madison County | 8-Hour Ozone (2015) | | St. Louis, MO-IL - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "washington-dc-md-va-moderate",
      "state": "VIRGINIA",
      "county": "Manassas city",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Washington, DC-MD-VA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-manassas-city-virginia-washington-dc-md-va-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-manassas-city-virginia-washington-dc-md-va-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Manassas city | 8-Hour Ozone (2015) | | Washington, DC-MD-VA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "washington-dc-md-va-moderate",
      "state": "VIRGINIA",
      "county": "Manassas Park city",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Washington, DC-MD-VA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-manassas-park-city-virginia-washington-dc-md-va-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-manassas-park-city-virginia-washington-dc-md-va-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Manassas Park city | 8-Hour Ozone (2015) | | Washington, DC-MD-VA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "phoenix-mesa-az-moderate",
      "state": "ARIZONA",
      "county": "Maricopa County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Phoenix-Mesa, AZ - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-maricopa-county-arizona-phoenix-mesa-az-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-maricopa-county-arizona-phoenix-mesa-az-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Maricopa County | PM-10 (1987) | * | Maricopa and Pinal Counties; Phoenix planning area, AZ - (Serious) | 8-Hour Ozone (2008) | * | Phoenix-Mesa, AZ - (Moderate) | 8-Hour Ozone (2015) | * | Phoenix-Mesa, AZ - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-francisco-bay-area-ca-marginal",
      "state": "CALIFORNIA",
      "county": "Marin County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "San Francisco Bay Area, CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-marin-county-california-san-francisco-bay-area-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-marin-county-california-san-francisco-bay-area-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Marin County | PM-2.5 (2006) | | San Francisco Bay Area, CA - (Moderate) | 8-Hour Ozone (2008) | | San Francisco Bay Area, CA - (Marginal) | 8-Hour Ozone (2015) | | San Francisco Bay Area, CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "mariposa-county-ca-moderate",
      "state": "CALIFORNIA",
      "county": "Mariposa County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Mariposa County, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-mariposa-county-california-mariposa-county-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-mariposa-county-california-mariposa-county-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Mariposa County | 8-Hour Ozone (2008) | | Mariposa County, CA - (Moderate) | 8-Hour Ozone (2015) | | Mariposa County, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "chicago-il-in-wi-serious",
      "state": "ILLINOIS",
      "county": "McHenry County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Chicago, IL-IN-WI - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-mchenry-county-illinois-chicago-il-in-wi-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-mchenry-county-illinois-chicago-il-in-wi-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "McHenry County | 8-Hour Ozone (2015) | | Chicago, IL-IN-WI - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-extreme",
      "state": "CALIFORNIA",
      "county": "Merced County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Extreme)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-merced-county-california-san-joaquin-valley-ca-extreme",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-merced-county-california-san-joaquin-valley-ca-extreme/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Merced County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2012) | | San Joaquin Valley, CA - (Serious) | 8-Hour Ozone (2008) | | San Joaquin Valley, CA - (Extreme) | 8-Hour Ozone (2015) | | San Joaquin Valley, CA - (Extreme)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "philadelphia-atlantic-city-pa-nj-serious",
      "state": "NEW JERSEY",
      "county": "Mercer County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Philadelphia-Atlantic City, PA-NJ - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-mercer-county-new-jersey-philadelphia-atlantic-city-pa-nj-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-mercer-county-new-jersey-philadelphia-atlantic-city-pa-nj-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Mercer County | 8-Hour Ozone (2008) | | Philadelphia-Atlantic City, PA-NJ - (Marginal) | 8-Hour Ozone (2015) | | Philadelphia-Atlantic City, PA-NJ - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "state": "CONNECTICUT",
      "county": "Middlesex County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-middlesex-county-connecticut-new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-middlesex-county-connecticut-new-york-northern-new-jersey-long-island-ny-nj-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Middlesex County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15) | 8-Hour Ozone (2015) | | New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "state": "NEW JERSEY",
      "county": "Middlesex County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-middlesex-county-new-jersey-new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-middlesex-county-new-jersey-new-york-northern-new-jersey-long-island-ny-nj-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Middlesex County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15) | 8-Hour Ozone (2015) | | New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "milwaukee-wi-serious",
      "state": "WISCONSIN",
      "county": "Milwaukee County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Milwaukee, WI - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-milwaukee-county-wisconsin-milwaukee-wi-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-milwaukee-county-wisconsin-milwaukee-wi-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Milwaukee County | 8-Hour Ozone (2015) | | Milwaukee, WI - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "state": "NEW JERSEY",
      "county": "Monmouth County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-monmouth-county-new-jersey-new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-monmouth-county-new-jersey-new-york-northern-new-jersey-long-island-ny-nj-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Monmouth County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15) | 8-Hour Ozone (2015) | | New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "st-louis-mo-il-serious",
      "state": "ILLINOIS",
      "county": "Monroe County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "St. Louis, MO-IL - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-monroe-county-illinois-st-louis-mo-il-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-monroe-county-illinois-st-louis-mo-il-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Monroe County | 8-Hour Ozone (2015) | | St. Louis, MO-IL - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "detroit-mi-moderate",
      "state": "MICHIGAN",
      "county": "Monroe County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Detroit, MI - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-monroe-county-michigan-detroit-mi-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-monroe-county-michigan-detroit-mi-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Monroe County | 8-Hour Ozone (2015) | | Detroit, MI - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "washington-dc-md-va-moderate",
      "state": "MARYLAND",
      "county": "Montgomery County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Washington, DC-MD-VA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-montgomery-county-maryland-washington-dc-md-va-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-montgomery-county-maryland-washington-dc-md-va-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Montgomery County | 8-Hour Ozone (2015) | | Washington, DC-MD-VA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "philadelphia-atlantic-city-pa-nj-serious",
      "state": "PENNSYLVANIA",
      "county": "Montgomery County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Philadelphia-Atlantic City, PA-NJ - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-montgomery-county-pennsylvania-philadelphia-atlantic-city-pa-nj-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-montgomery-county-pennsylvania-philadelphia-atlantic-city-pa-nj-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Montgomery County | 8-Hour Ozone (2008) | | Philadelphia-Atlantic City, PA-NJ - (Marginal) | 8-Hour Ozone (2015) | | Philadelphia-Atlantic City, PA-NJ - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "houston-galveston-brazoria-tx-serious",
      "state": "TEXAS",
      "county": "Montgomery County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Houston-Galveston-Brazoria, TX - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-montgomery-county-texas-houston-galveston-brazoria-tx-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-montgomery-county-texas-houston-galveston-brazoria-tx-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Montgomery County | 8-Hour Ozone (2008) | | Houston-Galveston-Brazoria, TX - (Severe 15) | 8-Hour Ozone (2015) | | Houston-Galveston-Brazoria, TX - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "state": "NEW JERSEY",
      "county": "Morris County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-morris-county-new-jersey-new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-morris-county-new-jersey-new-york-northern-new-jersey-long-island-ny-nj-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Morris County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15) | 8-Hour Ozone (2015) | | New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "muskegon-county-mi-serious",
      "state": "MICHIGAN",
      "county": "Muskegon County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Muskegon County, MI - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-muskegon-county-michigan-muskegon-county-mi-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-muskegon-county-michigan-muskegon-county-mi-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Muskegon County | 8-Hour Ozone (2015) | * | Muskegon County, MI - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-francisco-bay-area-ca-marginal",
      "state": "CALIFORNIA",
      "county": "Napa County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "San Francisco Bay Area, CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-napa-county-california-san-francisco-bay-area-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-napa-county-california-san-francisco-bay-area-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Napa County | PM-2.5 (2006) | | San Francisco Bay Area, CA - (Moderate) | 8-Hour Ozone (2008) | | San Francisco Bay Area, CA - (Marginal) | 8-Hour Ozone (2015) | | San Francisco Bay Area, CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "state": "NEW YORK",
      "county": "Nassau County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-nassau-county-new-york-new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-nassau-county-new-york-new-york-northern-new-jersey-long-island-ny-nj-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Nassau County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15) | 8-Hour Ozone (2015) | | New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "nevada-county-western-part-ca-serious",
      "state": "CALIFORNIA",
      "county": "Nevada County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Nevada County (Western part), CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-nevada-county-california-nevada-county-western-part-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-nevada-county-california-nevada-county-western-part-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Nevada County | 8-Hour Ozone (2008) | * | Nevada County (Western part), CA - (Serious) | 8-Hour Ozone (2015) | * | Nevada County (Western part), CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-castle-county-de-serious",
      "state": "DELAWARE",
      "county": "New Castle County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "New Castle County, DE - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-new-castle-county-delaware-new-castle-county-de-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-new-castle-county-delaware-new-castle-county-de-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "New Castle County | 8-Hour Ozone (2008) | | New Castle County, DE - (Marginal) | 8-Hour Ozone (2015) | | New Castle County, DE - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "state": "CONNECTICUT",
      "county": "New Haven County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-new-haven-county-connecticut-new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-new-haven-county-connecticut-new-york-northern-new-jersey-long-island-ny-nj-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "New Haven County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15) | 8-Hour Ozone (2015) | | New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "greater-connecticut-ct-serious",
      "state": "CONNECTICUT",
      "county": "New London County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Greater Connecticut, CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-new-london-county-connecticut-greater-connecticut-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-new-london-county-connecticut-greater-connecticut-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "New London County | 8-Hour Ozone (2008) | | Greater Connecticut, CT - (Serious) | 8-Hour Ozone (2015) | | Greater Connecticut, CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "state": "NEW YORK",
      "county": "New York County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-new-york-county-new-york-new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-new-york-county-new-york-new-york-northern-new-jersey-long-island-ny-nj-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "New York County | PM-10 (1987) | | New York County, NY - (Moderate) | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15) | 8-Hour Ozone (2015) | | New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "detroit-mi-moderate",
      "state": "MICHIGAN",
      "county": "Oakland County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Detroit, MI - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-oakland-county-michigan-detroit-mi-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-oakland-county-michigan-detroit-mi-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Oakland County | 8-Hour Ozone (2015) | | Detroit, MI - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "philadelphia-atlantic-city-pa-nj-serious",
      "state": "NEW JERSEY",
      "county": "Ocean County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Philadelphia-Atlantic City, PA-NJ - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-ocean-county-new-jersey-philadelphia-atlantic-city-pa-nj-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-ocean-county-new-jersey-philadelphia-atlantic-city-pa-nj-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Ocean County | 8-Hour Ozone (2008) | | Philadelphia-Atlantic City, PA-NJ - (Marginal) | 8-Hour Ozone (2015) | | Philadelphia-Atlantic City, PA-NJ - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "louisville-ky-in-moderate",
      "state": "KENTUCKY",
      "county": "Oldham County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Louisville, KY-IN - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-oldham-county-kentucky-louisville-ky-in-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-oldham-county-kentucky-louisville-ky-in-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Oldham County | 8-Hour Ozone (2015) | | Louisville, KY-IN - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "los-angeles-south-coast-air-basin-ca-extreme",
      "state": "CALIFORNIA",
      "county": "Orange County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Los Angeles-South Coast Air Basin, CA - (Extreme)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-orange-county-california-los-angeles-south-coast-air-basin-ca-extreme",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-orange-county-california-los-angeles-south-coast-air-basin-ca-extreme/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Orange County | PM-2.5 (1997) | | Los Angeles-South Coast Air Basin, CA - (Moderate) | PM-2.5 (2006) | | Los Angeles-South Coast Air Basin, CA - (Serious) | PM-2.5 (2012) | | Los Angeles-South Coast Air Basin, CA - (Serious) | 8-Hour Ozone (2008) | | Los Angeles-South Coast Air Basin, CA - (Extreme) | 8-Hour Ozone (2015) | | Los Angeles-South Coast Air Basin, CA - (Extreme)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "milwaukee-wi-serious",
      "state": "WISCONSIN",
      "county": "Ozaukee County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Milwaukee, WI - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-ozaukee-county-wisconsin-milwaukee-wi-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-ozaukee-county-wisconsin-milwaukee-wi-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Ozaukee County | 8-Hour Ozone (2015) | | Milwaukee, WI - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "dallas-fort-worth-tx-serious",
      "state": "TEXAS",
      "county": "Parker County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Dallas-Fort Worth, TX - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-parker-county-texas-dallas-fort-worth-tx-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-parker-county-texas-dallas-fort-worth-tx-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Parker County | 8-Hour Ozone (2008) | | Dallas-Fort Worth, TX - (Severe 15) | 8-Hour Ozone (2015) | | Dallas-Fort Worth, TX - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "state": "NEW JERSEY",
      "county": "Passaic County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-passaic-county-new-jersey-new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-passaic-county-new-jersey-new-york-northern-new-jersey-long-island-ny-nj-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Passaic County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15) | 8-Hour Ozone (2015) | | New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "philadelphia-atlantic-city-pa-nj-serious",
      "state": "PENNSYLVANIA",
      "county": "Philadelphia County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Philadelphia-Atlantic City, PA-NJ - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-philadelphia-county-pennsylvania-philadelphia-atlantic-city-pa-nj-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-philadelphia-county-pennsylvania-philadelphia-atlantic-city-pa-nj-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Philadelphia County | 8-Hour Ozone (2008) | | Philadelphia-Atlantic City, PA-NJ - (Marginal) | 8-Hour Ozone (2015) | | Philadelphia-Atlantic City, PA-NJ - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "phoenix-mesa-az-moderate",
      "state": "ARIZONA",
      "county": "Pinal County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Phoenix-Mesa, AZ - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-pinal-county-arizona-phoenix-mesa-az-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-pinal-county-arizona-phoenix-mesa-az-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Pinal County | Lead (2008) | * | Hayden, AZ | PM-10 (1987) | * | Hayden, AZ - (Moderate) | PM-10 (1987) | * | Maricopa and Pinal Counties; Phoenix planning area, AZ - (Serious) | PM-10 (1987) | * | Miami, AZ - (Moderate) | PM-10 (1987) | * | Pinal County (part); West Pinal, AZ - (Serious) | PM-2.5 (2006) | * | West Central Pinal, AZ - (Moderate) | Sulfur Dioxide (1971) | * | Hayden (Pinal County), AZ | Sulfur Dioxide (2010) | * | Hayden, AZ | 8-Hour Ozone (2008) | * | Phoenix-Mesa, AZ - (Moderate) | 8-Hour Ozone (2015) | * | Phoenix-Mesa, AZ - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "sacramento-metro-ca-serious",
      "state": "CALIFORNIA",
      "county": "Placer County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Sacramento Metro, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-placer-county-california-sacramento-metro-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-placer-county-california-sacramento-metro-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Placer County | PM-2.5 (2006) | * | Sacramento, CA - (Moderate) | 8-Hour Ozone (2008) | * | Sacramento Metro, CA - (Severe 15) | 8-Hour Ozone (2015) | * | Sacramento Metro, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "chicago-il-in-wi-serious",
      "state": "INDIANA",
      "county": "Porter County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Chicago, IL-IN-WI - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-porter-county-indiana-chicago-il-in-wi-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-porter-county-indiana-chicago-il-in-wi-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Porter County | 8-Hour Ozone (2015) | * | Chicago, IL-IN-WI - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "washington-dc-md-va-moderate",
      "state": "MARYLAND",
      "county": "Prince George's County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Washington, DC-MD-VA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-prince-george-s-county-maryland-washington-dc-md-va-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-prince-george-s-county-maryland-washington-dc-md-va-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Prince George's County | 8-Hour Ozone (2015) | | Washington, DC-MD-VA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "washington-dc-md-va-moderate",
      "state": "VIRGINIA",
      "county": "Prince William County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Washington, DC-MD-VA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-prince-william-county-virginia-washington-dc-md-va-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-prince-william-county-virginia-washington-dc-md-va-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Prince William County | 8-Hour Ozone (2015) | | Washington, DC-MD-VA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "state": "NEW YORK",
      "county": "Queens County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-queens-county-new-york-new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-queens-county-new-york-new-york-northern-new-jersey-long-island-ny-nj-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Queens County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15) | 8-Hour Ozone (2015) | | New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "milwaukee-wi-serious",
      "state": "WISCONSIN",
      "county": "Racine County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Milwaukee, WI - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-racine-county-wisconsin-milwaukee-wi-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-racine-county-wisconsin-milwaukee-wi-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Racine County | 8-Hour Ozone (2015) | * | Milwaukee, WI - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "state": "NEW YORK",
      "county": "Richmond County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-richmond-county-new-york-new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-richmond-county-new-york-new-york-northern-new-jersey-long-island-ny-nj-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Richmond County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15) | 8-Hour Ozone (2015) | | New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "los-angeles-south-coast-air-basin-ca-extreme",
      "state": "CALIFORNIA",
      "county": "Riverside County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Los Angeles-South Coast Air Basin, CA - (Extreme)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-riverside-county-california-los-angeles-south-coast-air-basin-ca-extreme",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-riverside-county-california-los-angeles-south-coast-air-basin-ca-extreme/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Riverside County | PM-10 (1987) | * | Riverside County; Coachella Valley planning area, CA - (Serious) | PM-2.5 (1997) | * | Los Angeles-South Coast Air Basin, CA - (Moderate) | PM-2.5 (2006) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | PM-2.5 (2012) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | 8-Hour Ozone (2008) | * | Los Angeles-South Coast Air Basin, CA - (Extreme) | 8-Hour Ozone (2008) | * | Morongo Band of Mission Indians, CA - (Severe 15) | 8-Hour Ozone (2008) | * | Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation, CA - (Moderate) | 8-Hour Ozone (2008) | * | Riverside County (Coachella Valley), CA - (Extreme) | 8-Hour Ozone (2015) | * | Los Angeles-South Coast Air Basin, CA - (Extreme)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "morongo-band-of-mission-indians-ca-serious",
      "state": "CALIFORNIA",
      "county": "Riverside County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Morongo Band of Mission Indians, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-riverside-county-california-morongo-band-of-mission-indians-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-riverside-county-california-morongo-band-of-mission-indians-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Riverside County | PM-10 (1987) | * | Riverside County; Coachella Valley planning area, CA - (Serious) | PM-2.5 (1997) | * | Los Angeles-South Coast Air Basin, CA - (Moderate) | PM-2.5 (2006) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | PM-2.5 (2012) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | 8-Hour Ozone (2008) | * | Los Angeles-South Coast Air Basin, CA - (Extreme) | 8-Hour Ozone (2008) | * | Morongo Band of Mission Indians, CA - (Severe 15) | 8-Hour Ozone (2008) | * | Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation, CA - (Moderate) | 8-Hour Ozone (2008) | * | Riverside County (Coachella Valley), CA - (Extreme) | 8-Hour Ozone (2015) | * | Los Angeles-South Coast Air Basin, CA - (Extreme) | 8-Hour Ozone (2015) | * | Morongo Band of Mission Indians, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "pechanga-band-of-luiseno-mission-indians-of-the-pechanga-reservation-ca-moderate",
      "state": "CALIFORNIA",
      "county": "Riverside County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-riverside-county-california-pechanga-band-of-luiseno-mission-indians-of-the-pechanga-reservation-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-riverside-county-california-pechanga-band-of-luiseno-mission-indians-of-the-pechanga-reservation-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Riverside County | PM-10 (1987) | * | Riverside County; Coachella Valley planning area, CA - (Serious) | PM-2.5 (1997) | * | Los Angeles-South Coast Air Basin, CA - (Moderate) | PM-2.5 (2006) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | PM-2.5 (2012) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | 8-Hour Ozone (2008) | * | Los Angeles-South Coast Air Basin, CA - (Extreme) | 8-Hour Ozone (2008) | * | Morongo Band of Mission Indians, CA - (Severe 15) | 8-Hour Ozone (2008) | * | Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation, CA - (Moderate) | 8-Hour Ozone (2008) | * | Riverside County (Coachella Valley), CA - (Extreme) | 8-Hour Ozone (2015) | * | Los Angeles-South Coast Air Basin, CA - (Extreme) | 8-Hour Ozone (2015) | * | Morongo Band of Mission Indians, CA - (Serious) | 8-Hour Ozone (2015) | * | Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "riverside-county-coachella-valley-ca-severe-15",
      "state": "CALIFORNIA",
      "county": "Riverside County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Riverside County (Coachella Valley), CA - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-riverside-county-california-riverside-county-coachella-valley-ca-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-riverside-county-california-riverside-county-coachella-valley-ca-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Riverside County | PM-10 (1987) | * | Riverside County; Coachella Valley planning area, CA - (Serious) | PM-2.5 (1997) | * | Los Angeles-South Coast Air Basin, CA - (Moderate) | PM-2.5 (2006) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | PM-2.5 (2012) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | 8-Hour Ozone (2008) | * | Los Angeles-South Coast Air Basin, CA - (Extreme) | 8-Hour Ozone (2008) | * | Morongo Band of Mission Indians, CA - (Severe 15) | 8-Hour Ozone (2008) | * | Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation, CA - (Moderate) | 8-Hour Ozone (2008) | * | Riverside County (Coachella Valley), CA - (Extreme) | 8-Hour Ozone (2015) | * | Los Angeles-South Coast Air Basin, CA - (Extreme) | 8-Hour Ozone (2015) | * | Morongo Band of Mission Indians, CA - (Serious) | 8-Hour Ozone (2015) | * | Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation, CA - (Moderate) | 8-Hour Ozone (2015) | * | Riverside County (Coachella Valley), CA - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "state": "NEW YORK",
      "county": "Rockland County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-rockland-county-new-york-new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-rockland-county-new-york-new-york-northern-new-jersey-long-island-ny-nj-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Rockland County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15) | 8-Hour Ozone (2015) | | New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "sacramento-metro-ca-serious",
      "state": "CALIFORNIA",
      "county": "Sacramento County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Sacramento Metro, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-sacramento-county-california-sacramento-metro-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-sacramento-county-california-sacramento-metro-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Sacramento County | PM-2.5 (2006) | | Sacramento, CA - (Moderate) | 8-Hour Ozone (2008) | | Sacramento Metro, CA - (Severe 15) | 8-Hour Ozone (2015) | | Sacramento Metro, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "philadelphia-atlantic-city-pa-nj-serious",
      "state": "NEW JERSEY",
      "county": "Salem County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Philadelphia-Atlantic City, PA-NJ - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-salem-county-new-jersey-philadelphia-atlantic-city-pa-nj-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-salem-county-new-jersey-philadelphia-atlantic-city-pa-nj-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Salem County | 8-Hour Ozone (2008) | | Philadelphia-Atlantic City, PA-NJ - (Marginal) | 8-Hour Ozone (2015) | | Philadelphia-Atlantic City, PA-NJ - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "northern-wasatch-front-ut-serious",
      "state": "UTAH",
      "county": "Salt Lake County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Northern Wasatch Front, UT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-salt-lake-county-utah-northern-wasatch-front-ut-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-salt-lake-county-utah-northern-wasatch-front-ut-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Salt Lake County | Sulfur Dioxide (1971) | | Salt Lake County, UT | 8-Hour Ozone (2015) | | Northern Wasatch Front, UT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "los-angeles-san-bernardino-counties-west-mojave-desert-ca-severe-15",
      "state": "CALIFORNIA",
      "county": "San Bernardino County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Los Angeles-San Bernardino Counties (West Mojave Desert), CA - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-san-bernardino-county-california-los-angeles-san-bernardino-counties-west-mojave-desert-ca-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-san-bernardino-county-california-los-angeles-san-bernardino-counties-west-mojave-desert-ca-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "San Bernardino County | PM-10 (1987) | * | San Bernardino County, CA - (Moderate) | PM-10 (1987) | * | Trona, CA - (Moderate) | PM-2.5 (1997) | * | Los Angeles-South Coast Air Basin, CA - (Moderate) | PM-2.5 (2006) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | PM-2.5 (2012) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | 8-Hour Ozone (2008) | * | Los Angeles-San Bernardino Counties (West Mojave Desert), CA - (Severe 15) | 8-Hour Ozone (2008) | * | Los Angeles-South Coast Air Basin, CA - (Extreme) | 8-Hour Ozone (2015) | * | Los Angeles-San Bernardino Counties (West Mojave Desert), CA - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "los-angeles-south-coast-air-basin-ca-extreme",
      "state": "CALIFORNIA",
      "county": "San Bernardino County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Los Angeles-South Coast Air Basin, CA - (Extreme)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-san-bernardino-county-california-los-angeles-south-coast-air-basin-ca-extreme",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-san-bernardino-county-california-los-angeles-south-coast-air-basin-ca-extreme/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "San Bernardino County | PM-10 (1987) | * | San Bernardino County, CA - (Moderate) | PM-10 (1987) | * | Trona, CA - (Moderate) | PM-2.5 (1997) | * | Los Angeles-South Coast Air Basin, CA - (Moderate) | PM-2.5 (2006) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | PM-2.5 (2012) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | 8-Hour Ozone (2008) | * | Los Angeles-San Bernardino Counties (West Mojave Desert), CA - (Severe 15) | 8-Hour Ozone (2008) | * | Los Angeles-South Coast Air Basin, CA - (Extreme) | 8-Hour Ozone (2015) | * | Los Angeles-San Bernardino Counties (West Mojave Desert), CA - (Severe 15) | 8-Hour Ozone (2015) | * | Los Angeles-South Coast Air Basin, CA - (Extreme)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "pechanga-band-of-luiseno-mission-indians-of-the-pechanga-reservation-ca-moderate",
      "state": "CALIFORNIA",
      "county": "San Diego County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-san-diego-county-california-pechanga-band-of-luiseno-mission-indians-of-the-pechanga-reservation-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-san-diego-county-california-pechanga-band-of-luiseno-mission-indians-of-the-pechanga-reservation-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "San Diego County | 8-Hour Ozone (2008) | * | Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation, CA - (Moderate) | 8-Hour Ozone (2008) | * | San Diego County, CA - (Severe 15) | 8-Hour Ozone (2015) | * | Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-diego-county-ca-severe-15",
      "state": "CALIFORNIA",
      "county": "San Diego County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "San Diego County, CA - (Severe 15)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-san-diego-county-california-san-diego-county-ca-severe-15",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-san-diego-county-california-san-diego-county-ca-severe-15/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "San Diego County | 8-Hour Ozone (2008) | * | Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation, CA - (Moderate) | 8-Hour Ozone (2008) | * | San Diego County, CA - (Severe 15) | 8-Hour Ozone (2015) | * | Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation, CA - (Moderate) | 8-Hour Ozone (2015) | * | San Diego County, CA - (Severe 15)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-francisco-bay-area-ca-marginal",
      "state": "CALIFORNIA",
      "county": "San Francisco County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "San Francisco Bay Area, CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-san-francisco-county-california-san-francisco-bay-area-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-san-francisco-county-california-san-francisco-bay-area-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "San Francisco County | PM-2.5 (2006) | | San Francisco Bay Area, CA - (Moderate) | 8-Hour Ozone (2008) | | San Francisco Bay Area, CA - (Marginal) | 8-Hour Ozone (2015) | | San Francisco Bay Area, CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-extreme",
      "state": "CALIFORNIA",
      "county": "San Joaquin County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Extreme)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-san-joaquin-county-california-san-joaquin-valley-ca-extreme",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-san-joaquin-county-california-san-joaquin-valley-ca-extreme/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "San Joaquin County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2012) | | San Joaquin Valley, CA - (Serious) | 8-Hour Ozone (2008) | | San Joaquin Valley, CA - (Extreme) | 8-Hour Ozone (2015) | | San Joaquin Valley, CA - (Extreme)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-luis-obispo-eastern-part-ca-marginal",
      "state": "CALIFORNIA",
      "county": "San Luis Obispo County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "San Luis Obispo (Eastern part), CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-san-luis-obispo-county-california-san-luis-obispo-eastern-part-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-san-luis-obispo-county-california-san-luis-obispo-eastern-part-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "San Luis Obispo County | 8-Hour Ozone (2008) | * | San Luis Obispo (Eastern San Luis Obispo), CA - (Marginal) | 8-Hour Ozone (2015) | * | San Luis Obispo (Eastern part), CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-francisco-bay-area-ca-marginal",
      "state": "CALIFORNIA",
      "county": "San Mateo County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "San Francisco Bay Area, CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-san-mateo-county-california-san-francisco-bay-area-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-san-mateo-county-california-san-francisco-bay-area-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "San Mateo County | PM-2.5 (2006) | | San Francisco Bay Area, CA - (Moderate) | 8-Hour Ozone (2008) | | San Francisco Bay Area, CA - (Marginal) | 8-Hour Ozone (2015) | | San Francisco Bay Area, CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-francisco-bay-area-ca-marginal",
      "state": "CALIFORNIA",
      "county": "Santa Clara County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "San Francisco Bay Area, CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-santa-clara-county-california-san-francisco-bay-area-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-santa-clara-county-california-san-francisco-bay-area-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Santa Clara County | PM-2.5 (2006) | | San Francisco Bay Area, CA - (Moderate) | 8-Hour Ozone (2008) | | San Francisco Bay Area, CA - (Marginal) | 8-Hour Ozone (2015) | | San Francisco Bay Area, CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "sheboygan-county-wi-serious",
      "state": "WISCONSIN",
      "county": "Sheboygan County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Sheboygan County, WI - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-sheboygan-county-wisconsin-sheboygan-county-wi-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-sheboygan-county-wisconsin-sheboygan-county-wi-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Sheboygan County | 8-Hour Ozone (2015) | * | Sheboygan County, WI - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "sacramento-metro-ca-serious",
      "state": "CALIFORNIA",
      "county": "Solano County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Sacramento Metro, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-solano-county-california-sacramento-metro-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-solano-county-california-sacramento-metro-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Solano County | PM-2.5 (2006) | * | Sacramento, CA - (Moderate) | PM-2.5 (2006) | * | San Francisco Bay Area, CA - (Moderate) | 8-Hour Ozone (2008) | * | Sacramento Metro, CA - (Severe 15) | 8-Hour Ozone (2008) | * | San Francisco Bay Area, CA - (Marginal) | 8-Hour Ozone (2015) | * | Sacramento Metro, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-francisco-bay-area-ca-marginal",
      "state": "CALIFORNIA",
      "county": "Solano County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "San Francisco Bay Area, CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-solano-county-california-san-francisco-bay-area-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-solano-county-california-san-francisco-bay-area-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Solano County | PM-2.5 (2006) | * | Sacramento, CA - (Moderate) | PM-2.5 (2006) | * | San Francisco Bay Area, CA - (Moderate) | 8-Hour Ozone (2008) | * | Sacramento Metro, CA - (Severe 15) | 8-Hour Ozone (2008) | * | San Francisco Bay Area, CA - (Marginal) | 8-Hour Ozone (2015) | * | Sacramento Metro, CA - (Serious) | 8-Hour Ozone (2015) | * | San Francisco Bay Area, CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "state": "NEW JERSEY",
      "county": "Somerset County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-somerset-county-new-jersey-new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-somerset-county-new-jersey-new-york-northern-new-jersey-long-island-ny-nj-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Somerset County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15) | 8-Hour Ozone (2015) | | New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-francisco-bay-area-ca-marginal",
      "state": "CALIFORNIA",
      "county": "Sonoma County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "San Francisco Bay Area, CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-sonoma-county-california-san-francisco-bay-area-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-sonoma-county-california-san-francisco-bay-area-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Sonoma County | PM-2.5 (2006) | * | San Francisco Bay Area, CA - (Moderate) | 8-Hour Ozone (2008) | * | San Francisco Bay Area, CA - (Marginal) | 8-Hour Ozone (2015) | * | San Francisco Bay Area, CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "st-louis-mo-il-serious",
      "state": "MISSOURI",
      "county": "St. Charles County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "St. Louis, MO-IL - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-st-charles-county-missouri-st-louis-mo-il-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-st-charles-county-missouri-st-louis-mo-il-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "St. Charles County | 8-Hour Ozone (2015) | | St. Louis, MO-IL - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "st-louis-mo-il-serious",
      "state": "ILLINOIS",
      "county": "St. Clair County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "St. Louis, MO-IL - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-st-clair-county-illinois-st-louis-mo-il-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-st-clair-county-illinois-st-louis-mo-il-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "St. Clair County | 8-Hour Ozone (2015) | | St. Louis, MO-IL - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "detroit-mi-moderate",
      "state": "MICHIGAN",
      "county": "St. Clair County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Detroit, MI - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-st-clair-county-michigan-detroit-mi-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-st-clair-county-michigan-detroit-mi-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "St. Clair County | 8-Hour Ozone (2015) | | Detroit, MI - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "st-louis-mo-il-serious",
      "state": "MISSOURI",
      "county": "St. Louis city",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "St. Louis, MO-IL - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-st-louis-city-missouri-st-louis-mo-il-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-st-louis-city-missouri-st-louis-mo-il-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "St. Louis city | 8-Hour Ozone (2015) | | St. Louis, MO-IL - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "st-louis-mo-il-serious",
      "state": "MISSOURI",
      "county": "St. Louis County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "St. Louis, MO-IL - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-st-louis-county-missouri-st-louis-mo-il-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-st-louis-county-missouri-st-louis-mo-il-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "St. Louis County | 8-Hour Ozone (2015) | | St. Louis, MO-IL - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-extreme",
      "state": "CALIFORNIA",
      "county": "Stanislaus County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Extreme)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-stanislaus-county-california-san-joaquin-valley-ca-extreme",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-stanislaus-county-california-san-joaquin-valley-ca-extreme/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Stanislaus County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2012) | | San Joaquin Valley, CA - (Serious) | 8-Hour Ozone (2008) | | San Joaquin Valley, CA - (Extreme) | 8-Hour Ozone (2015) | | San Joaquin Valley, CA - (Extreme)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "state": "NEW YORK",
      "county": "Suffolk County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-suffolk-county-new-york-new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-suffolk-county-new-york-new-york-northern-new-jersey-long-island-ny-nj-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Suffolk County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15) | 8-Hour Ozone (2015) | | New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "state": "NEW JERSEY",
      "county": "Sussex County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-sussex-county-new-jersey-new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-sussex-county-new-jersey-new-york-northern-new-jersey-long-island-ny-nj-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Sussex County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15) | 8-Hour Ozone (2015) | | New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "sacramento-metro-ca-serious",
      "state": "CALIFORNIA",
      "county": "Sutter County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Sacramento Metro, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-sutter-county-california-sacramento-metro-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-sutter-county-california-sacramento-metro-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Sutter County | 8-Hour Ozone (2008) | * | Sacramento Metro, CA - (Severe 15) | 8-Hour Ozone (2015) | * | Sacramento Metro, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "sutter-buttes-ca-marginal",
      "state": "CALIFORNIA",
      "county": "Sutter County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Sutter Buttes, CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-sutter-county-california-sutter-buttes-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-sutter-county-california-sutter-buttes-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Sutter County | 8-Hour Ozone (2008) | * | Sacramento Metro, CA - (Severe 15) | 8-Hour Ozone (2015) | * | Sacramento Metro, CA - (Serious) | 8-Hour Ozone (2015) | * | Sutter Buttes, CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "dallas-fort-worth-tx-serious",
      "state": "TEXAS",
      "county": "Tarrant County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Dallas-Fort Worth, TX - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-tarrant-county-texas-dallas-fort-worth-tx-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-tarrant-county-texas-dallas-fort-worth-tx-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Tarrant County | 8-Hour Ozone (2008) | | Dallas-Fort Worth, TX - (Severe 15) | 8-Hour Ozone (2015) | | Dallas-Fort Worth, TX - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "tuscan-buttes-ca-marginal-rural-transport",
      "state": "CALIFORNIA",
      "county": "Tehama County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Tuscan Buttes, CA - (Marginal (Rural Transport))",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-tehama-county-california-tuscan-buttes-ca-marginal-rural-transport",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-tehama-county-california-tuscan-buttes-ca-marginal-rural-transport/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Tehama County | 8-Hour Ozone (2008) | * | Tuscan Buttes, CA - (Marginal) | 8-Hour Ozone (2015) | * | Tuscan Buttes, CA - (Marginal (Rural Transport))",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "greater-connecticut-ct-serious",
      "state": "CONNECTICUT",
      "county": "Tolland County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Greater Connecticut, CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-tolland-county-connecticut-greater-connecticut-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-tolland-county-connecticut-greater-connecticut-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Tolland County | 8-Hour Ozone (2008) | | Greater Connecticut, CT - (Serious) | 8-Hour Ozone (2015) | | Greater Connecticut, CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "northern-wasatch-front-ut-serious",
      "state": "UTAH",
      "county": "Tooele County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Northern Wasatch Front, UT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-tooele-county-utah-northern-wasatch-front-ut-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-tooele-county-utah-northern-wasatch-front-ut-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Tooele County | Sulfur Dioxide (1971) | * | Tooele County, UT | 8-Hour Ozone (2015) | * | Northern Wasatch Front, UT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-extreme",
      "state": "CALIFORNIA",
      "county": "Tulare County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Extreme)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-tulare-county-california-san-joaquin-valley-ca-extreme",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-tulare-county-california-san-joaquin-valley-ca-extreme/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Tulare County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2012) | | San Joaquin Valley, CA - (Serious) | 8-Hour Ozone (2008) | | San Joaquin Valley, CA - (Extreme) | 8-Hour Ozone (2015) | | San Joaquin Valley, CA - (Extreme)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "tuolumne-county-ca-marginal",
      "state": "CALIFORNIA",
      "county": "Tuolumne County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Tuolumne County, CA - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-tuolumne-county-california-tuolumne-county-ca-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-tuolumne-county-california-tuolumne-county-ca-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Tuolumne County | 8-Hour Ozone (2015) | | Tuolumne County, CA - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "uinta-basin-ut-marginal",
      "state": "UTAH",
      "county": "Uintah County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Uinta Basin, UT - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-uintah-county-utah-uinta-basin-ut-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-uintah-county-utah-uinta-basin-ut-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Uintah County | 8-Hour Ozone (2015) | * | Uinta Basin, UT - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "state": "NEW JERSEY",
      "county": "Union County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-union-county-new-jersey-new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-union-county-new-jersey-new-york-northern-new-jersey-long-island-ny-nj-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Union County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15) | 8-Hour Ozone (2015) | | New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "southern-wasatch-front-ut-marginal",
      "state": "UTAH",
      "county": "Utah County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Southern Wasatch Front, UT - (Marginal)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-utah-county-utah-southern-wasatch-front-ut-marginal",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-utah-county-utah-southern-wasatch-front-ut-marginal/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Utah County | 8-Hour Ozone (2015) | * | Southern Wasatch Front, UT - (Marginal)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "ventura-county-ca-serious",
      "state": "CALIFORNIA",
      "county": "Ventura County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Ventura County, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-ventura-county-california-ventura-county-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-ventura-county-california-ventura-county-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Ventura County | 8-Hour Ozone (2008) | * | Ventura County, CA - (Serious) | 8-Hour Ozone (2015) | * | Ventura County, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "state": "NEW JERSEY",
      "county": "Warren County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-warren-county-new-jersey-new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-warren-county-new-jersey-new-york-northern-new-jersey-long-island-ny-nj-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Warren County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15) | 8-Hour Ozone (2015) | | New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "milwaukee-wi-serious",
      "state": "WISCONSIN",
      "county": "Washington County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Milwaukee, WI - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-washington-county-wisconsin-milwaukee-wi-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-washington-county-wisconsin-milwaukee-wi-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Washington County | 8-Hour Ozone (2015) | * | Milwaukee, WI - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "detroit-mi-moderate",
      "state": "MICHIGAN",
      "county": "Washtenaw County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Detroit, MI - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-washtenaw-county-michigan-detroit-mi-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-washtenaw-county-michigan-detroit-mi-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Washtenaw County | 8-Hour Ozone (2015) | | Detroit, MI - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "milwaukee-wi-serious",
      "state": "WISCONSIN",
      "county": "Waukesha County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Milwaukee, WI - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-waukesha-county-wisconsin-milwaukee-wi-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-waukesha-county-wisconsin-milwaukee-wi-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Waukesha County | 8-Hour Ozone (2015) | * | Milwaukee, WI - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "detroit-mi-moderate",
      "state": "MICHIGAN",
      "county": "Wayne County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Detroit, MI - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-wayne-county-michigan-detroit-mi-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-wayne-county-michigan-detroit-mi-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Wayne County | 8-Hour Ozone (2015) | | Detroit, MI - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "northern-wasatch-front-ut-serious",
      "state": "UTAH",
      "county": "Weber County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "partial_county": "yes",
      "nonattainment_area_name": "Northern Wasatch Front, UT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-weber-county-utah-northern-wasatch-front-ut-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-weber-county-utah-northern-wasatch-front-ut-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Weber County | 8-Hour Ozone (2015) | * | Northern Wasatch Front, UT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "denver-metro-north-front-range-co-serious",
      "state": "COLORADO",
      "county": "Weld County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Denver Metro/North Front Range, CO - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-weld-county-colorado-denver-metro-north-front-range-co-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-weld-county-colorado-denver-metro-north-front-range-co-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Weld County | 8-Hour Ozone (2008) | * | Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Severe 15) | 8-Hour Ozone (2015) | | Denver Metro/North Front Range, CO - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "state": "NEW YORK",
      "county": "Westchester County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-westchester-county-new-york-new-york-northern-new-jersey-long-island-ny-nj-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-westchester-county-new-york-new-york-northern-new-jersey-long-island-ny-nj-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Westchester County | 8-Hour Ozone (2008) | | New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 15) | 8-Hour Ozone (2015) | | New York-Northern New Jersey-Long Island, NY-NJ-CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "chicago-il-in-wi-serious",
      "state": "ILLINOIS",
      "county": "Will County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Chicago, IL-IN-WI - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-will-county-illinois-chicago-il-in-wi-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-will-county-illinois-chicago-il-in-wi-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Will County | 8-Hour Ozone (2015) | | Chicago, IL-IN-WI - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "greater-connecticut-ct-serious",
      "state": "CONNECTICUT",
      "county": "Windham County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Greater Connecticut, CT - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-windham-county-connecticut-greater-connecticut-ct-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-windham-county-connecticut-greater-connecticut-ct-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Windham County | 8-Hour Ozone (2008) | | Greater Connecticut, CT - (Serious) | 8-Hour Ozone (2015) | | Greater Connecticut, CT - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "dallas-fort-worth-tx-serious",
      "state": "TEXAS",
      "county": "Wise County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Dallas-Fort Worth, TX - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-wise-county-texas-dallas-fort-worth-tx-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-wise-county-texas-dallas-fort-worth-tx-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Wise County | 8-Hour Ozone (2008) | | Dallas-Fort Worth, TX - (Severe 15) | 8-Hour Ozone (2015) | | Dallas-Fort Worth, TX - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "sacramento-metro-ca-serious",
      "state": "CALIFORNIA",
      "county": "Yolo County",
      "pollutant_naaqs": "8-Hour Ozone (2015)",
      "nonattainment_area_name": "Sacramento Metro, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "8-hour-ozone-2015-yolo-county-california-sacramento-metro-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/8-hour-ozone-2015-yolo-county-california-sacramento-metro-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Yolo County | PM-2.5 (2006) | * | Sacramento, CA - (Moderate) | 8-Hour Ozone (2008) | | Sacramento Metro, CA - (Severe 15) | 8-Hour Ozone (2015) | | Sacramento Metro, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "jefferson-county-part-herculaneum-mo",
      "state": "MISSOURI",
      "county": "Jefferson County",
      "pollutant_naaqs": "Lead (1978)",
      "partial_county": "yes",
      "nonattainment_area_name": "Jefferson County (part); Herculaneum, MO",
      "data_as_of": "August 31, 2026",
      "id": "lead-1978-jefferson-county-missouri-jefferson-county-part-herculaneum-mo",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/lead-1978-jefferson-county-missouri-jefferson-county-part-herculaneum-mo/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Jefferson County | Lead (1978) | * | Jefferson County (part); Herculaneum, MO",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "arecibo-pr",
      "state": "PUERTO RICO",
      "county": "Arecibo Municipio",
      "pollutant_naaqs": "Lead (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Arecibo, PR",
      "data_as_of": "August 31, 2026",
      "id": "lead-2008-arecibo-municipio-puerto-rico-arecibo-pr",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/lead-2008-arecibo-municipio-puerto-rico-arecibo-pr/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Arecibo Municipio | Lead (2008) | * | Arecibo, PR",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "lower-beaver-valley-pa",
      "state": "PENNSYLVANIA",
      "county": "Beaver County",
      "pollutant_naaqs": "Lead (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Lower Beaver Valley, PA",
      "data_as_of": "August 31, 2026",
      "id": "lead-2008-beaver-county-pennsylvania-lower-beaver-valley-pa",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/lead-2008-beaver-county-pennsylvania-lower-beaver-valley-pa/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Beaver County | Lead (2008) | * | Lower Beaver Valley, PA",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "lyons-pa",
      "state": "PENNSYLVANIA",
      "county": "Berks County",
      "pollutant_naaqs": "Lead (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Lyons, PA",
      "data_as_of": "August 31, 2026",
      "id": "lead-2008-berks-county-pennsylvania-lyons-pa",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/lead-2008-berks-county-pennsylvania-lyons-pa/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Berks County | Lead (2008) | * | Lyons, PA",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "north-reading-pa",
      "state": "PENNSYLVANIA",
      "county": "Berks County",
      "pollutant_naaqs": "Lead (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "North Reading, PA",
      "data_as_of": "August 31, 2026",
      "id": "lead-2008-berks-county-pennsylvania-north-reading-pa",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/lead-2008-berks-county-pennsylvania-north-reading-pa/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Berks County | Lead (2008) | * | Lyons, PA | Lead (2008) | * | North Reading, PA",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "eagan-mn",
      "state": "MINNESOTA",
      "county": "Dakota County",
      "pollutant_naaqs": "Lead (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Eagan, MN",
      "data_as_of": "August 31, 2026",
      "id": "lead-2008-dakota-county-minnesota-eagan-mn",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/lead-2008-dakota-county-minnesota-eagan-mn/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Dakota County | Lead (2008) | * | Eagan, MN",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "iron-dent-and-reynolds-counties-mo",
      "state": "MISSOURI",
      "county": "Dent County",
      "pollutant_naaqs": "Lead (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Iron, Dent, and Reynolds Counties, MO",
      "data_as_of": "August 31, 2026",
      "id": "lead-2008-dent-county-missouri-iron-dent-and-reynolds-counties-mo",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/lead-2008-dent-county-missouri-iron-dent-and-reynolds-counties-mo/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Dent County | Lead (2008) | * | Iron, Dent, and Reynolds Counties, MO",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "hayden-az",
      "state": "ARIZONA",
      "county": "Gila County",
      "pollutant_naaqs": "Lead (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Hayden, AZ",
      "data_as_of": "August 31, 2026",
      "id": "lead-2008-gila-county-arizona-hayden-az",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/lead-2008-gila-county-arizona-hayden-az/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Gila County | Lead (2008) | * | Hayden, AZ",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "iron-dent-and-reynolds-counties-mo",
      "state": "MISSOURI",
      "county": "Iron County",
      "pollutant_naaqs": "Lead (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Iron, Dent, and Reynolds Counties, MO",
      "data_as_of": "August 31, 2026",
      "id": "lead-2008-iron-county-missouri-iron-dent-and-reynolds-counties-mo",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/lead-2008-iron-county-missouri-iron-dent-and-reynolds-counties-mo/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Iron County | Lead (2008) | * | Iron, Dent, and Reynolds Counties, MO",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "jefferson-county-mo",
      "state": "MISSOURI",
      "county": "Jefferson County",
      "pollutant_naaqs": "Lead (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Jefferson County, MO",
      "data_as_of": "August 31, 2026",
      "id": "lead-2008-jefferson-county-missouri-jefferson-county-mo",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/lead-2008-jefferson-county-missouri-jefferson-county-mo/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Jefferson County | Lead (1978) | * | Jefferson County (part); Herculaneum, MO | Lead (2008) | * | Jefferson County, MO",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "los-angeles-county-south-coast-air-basin-ca",
      "state": "CALIFORNIA",
      "county": "Los Angeles County",
      "pollutant_naaqs": "Lead (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Los Angeles County-South Coast Air Basin, CA",
      "data_as_of": "August 31, 2026",
      "id": "lead-2008-los-angeles-county-california-los-angeles-county-south-coast-air-basin-ca",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/lead-2008-los-angeles-county-california-los-angeles-county-south-coast-air-basin-ca/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Los Angeles County | Lead (2008) | * | Los Angeles County-South Coast Air Basin, CA",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "hayden-az",
      "state": "ARIZONA",
      "county": "Pinal County",
      "pollutant_naaqs": "Lead (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Hayden, AZ",
      "data_as_of": "August 31, 2026",
      "id": "lead-2008-pinal-county-arizona-hayden-az",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/lead-2008-pinal-county-arizona-hayden-az/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Pinal County | Lead (2008) | * | Hayden, AZ",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "iron-dent-and-reynolds-counties-mo",
      "state": "MISSOURI",
      "county": "Reynolds County",
      "pollutant_naaqs": "Lead (2008)",
      "partial_county": "yes",
      "nonattainment_area_name": "Iron, Dent, and Reynolds Counties, MO",
      "data_as_of": "August 31, 2026",
      "id": "lead-2008-reynolds-county-missouri-iron-dent-and-reynolds-counties-mo",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/lead-2008-reynolds-county-missouri-iron-dent-and-reynolds-counties-mo/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Reynolds County | Lead (2008) | * | Iron, Dent, and Reynolds Counties, MO",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-serious",
      "state": "CALIFORNIA",
      "county": "Fresno County",
      "pollutant_naaqs": "PM-2.5 (1997)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-1997-fresno-county-california-san-joaquin-valley-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-1997-fresno-county-california-san-joaquin-valley-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Fresno County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-serious",
      "state": "CALIFORNIA",
      "county": "Kern County",
      "pollutant_naaqs": "PM-2.5 (1997)",
      "partial_county": "yes",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-1997-kern-county-california-san-joaquin-valley-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-1997-kern-county-california-san-joaquin-valley-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Kern County | PM-10 (1987) | * | East Kern County, CA - (Serious) | PM-2.5 (1997) | * | San Joaquin Valley, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-serious",
      "state": "CALIFORNIA",
      "county": "Kings County",
      "pollutant_naaqs": "PM-2.5 (1997)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-1997-kings-county-california-san-joaquin-valley-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-1997-kings-county-california-san-joaquin-valley-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Kings County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "los-angeles-south-coast-air-basin-ca-moderate",
      "state": "CALIFORNIA",
      "county": "Los Angeles County",
      "pollutant_naaqs": "PM-2.5 (1997)",
      "partial_county": "yes",
      "nonattainment_area_name": "Los Angeles-South Coast Air Basin, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-1997-los-angeles-county-california-los-angeles-south-coast-air-basin-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-1997-los-angeles-county-california-los-angeles-south-coast-air-basin-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Los Angeles County | Lead (2008) | * | Los Angeles County-South Coast Air Basin, CA | PM-2.5 (1997) | * | Los Angeles-South Coast Air Basin, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-serious",
      "state": "CALIFORNIA",
      "county": "Madera County",
      "pollutant_naaqs": "PM-2.5 (1997)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-1997-madera-county-california-san-joaquin-valley-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-1997-madera-county-california-san-joaquin-valley-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Madera County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-serious",
      "state": "CALIFORNIA",
      "county": "Merced County",
      "pollutant_naaqs": "PM-2.5 (1997)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-1997-merced-county-california-san-joaquin-valley-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-1997-merced-county-california-san-joaquin-valley-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Merced County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "los-angeles-south-coast-air-basin-ca-moderate",
      "state": "CALIFORNIA",
      "county": "Orange County",
      "pollutant_naaqs": "PM-2.5 (1997)",
      "nonattainment_area_name": "Los Angeles-South Coast Air Basin, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-1997-orange-county-california-los-angeles-south-coast-air-basin-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-1997-orange-county-california-los-angeles-south-coast-air-basin-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Orange County | PM-2.5 (1997) | | Los Angeles-South Coast Air Basin, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "los-angeles-south-coast-air-basin-ca-moderate",
      "state": "CALIFORNIA",
      "county": "Riverside County",
      "pollutant_naaqs": "PM-2.5 (1997)",
      "partial_county": "yes",
      "nonattainment_area_name": "Los Angeles-South Coast Air Basin, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-1997-riverside-county-california-los-angeles-south-coast-air-basin-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-1997-riverside-county-california-los-angeles-south-coast-air-basin-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Riverside County | PM-10 (1987) | * | Riverside County; Coachella Valley planning area, CA - (Serious) | PM-2.5 (1997) | * | Los Angeles-South Coast Air Basin, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "los-angeles-south-coast-air-basin-ca-moderate",
      "state": "CALIFORNIA",
      "county": "San Bernardino County",
      "pollutant_naaqs": "PM-2.5 (1997)",
      "partial_county": "yes",
      "nonattainment_area_name": "Los Angeles-South Coast Air Basin, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-1997-san-bernardino-county-california-los-angeles-south-coast-air-basin-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-1997-san-bernardino-county-california-los-angeles-south-coast-air-basin-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "San Bernardino County | PM-10 (1987) | * | San Bernardino County, CA - (Moderate) | PM-10 (1987) | * | Trona, CA - (Moderate) | PM-2.5 (1997) | * | Los Angeles-South Coast Air Basin, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-serious",
      "state": "CALIFORNIA",
      "county": "San Joaquin County",
      "pollutant_naaqs": "PM-2.5 (1997)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-1997-san-joaquin-county-california-san-joaquin-valley-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-1997-san-joaquin-county-california-san-joaquin-valley-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "San Joaquin County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-serious",
      "state": "CALIFORNIA",
      "county": "Stanislaus County",
      "pollutant_naaqs": "PM-2.5 (1997)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-1997-stanislaus-county-california-san-joaquin-valley-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-1997-stanislaus-county-california-san-joaquin-valley-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Stanislaus County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-serious",
      "state": "CALIFORNIA",
      "county": "Tulare County",
      "pollutant_naaqs": "PM-2.5 (1997)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-1997-tulare-county-california-san-joaquin-valley-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-1997-tulare-county-california-san-joaquin-valley-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Tulare County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-francisco-bay-area-ca-moderate",
      "state": "CALIFORNIA",
      "county": "Alameda County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "nonattainment_area_name": "San Francisco Bay Area, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-alameda-county-california-san-francisco-bay-area-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-alameda-county-california-san-francisco-bay-area-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Alameda County | PM-2.5 (2006) | | San Francisco Bay Area, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-francisco-bay-area-ca-moderate",
      "state": "CALIFORNIA",
      "county": "Contra Costa County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "nonattainment_area_name": "San Francisco Bay Area, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-contra-costa-county-california-san-francisco-bay-area-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-contra-costa-county-california-san-francisco-bay-area-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Contra Costa County | PM-2.5 (2006) | | San Francisco Bay Area, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "sacramento-ca-moderate",
      "state": "CALIFORNIA",
      "county": "El Dorado County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "partial_county": "yes",
      "nonattainment_area_name": "Sacramento, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-el-dorado-county-california-sacramento-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-el-dorado-county-california-sacramento-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "El Dorado County | PM-2.5 (2006) | * | Sacramento, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "fairbanks-ak-serious",
      "state": "ALASKA",
      "county": "Fairbanks North Star Borough",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "partial_county": "yes",
      "nonattainment_area_name": "Fairbanks, AK - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-fairbanks-north-star-borough-alaska-fairbanks-ak-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-fairbanks-north-star-borough-alaska-fairbanks-ak-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Fairbanks North Star Borough | PM-2.5 (2006) | * | Fairbanks, AK - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-serious",
      "state": "CALIFORNIA",
      "county": "Fresno County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-fresno-county-california-san-joaquin-valley-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-fresno-county-california-san-joaquin-valley-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Fresno County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | | San Joaquin Valley, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "imperial-county-ca-moderate",
      "state": "CALIFORNIA",
      "county": "Imperial County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "partial_county": "yes",
      "nonattainment_area_name": "Imperial County, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-imperial-county-california-imperial-county-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-imperial-county-california-imperial-county-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Imperial County | PM-2.5 (2006) | * | Imperial County, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-serious",
      "state": "CALIFORNIA",
      "county": "Kern County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "partial_county": "yes",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-kern-county-california-san-joaquin-valley-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-kern-county-california-san-joaquin-valley-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Kern County | PM-10 (1987) | * | East Kern County, CA - (Serious) | PM-2.5 (1997) | * | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | * | San Joaquin Valley, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-serious",
      "state": "CALIFORNIA",
      "county": "Kings County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-kings-county-california-san-joaquin-valley-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-kings-county-california-san-joaquin-valley-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Kings County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | | San Joaquin Valley, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "klamath-falls-or-moderate",
      "state": "OREGON",
      "county": "Klamath County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "partial_county": "yes",
      "nonattainment_area_name": "Klamath Falls, OR - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-klamath-county-oregon-klamath-falls-or-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-klamath-county-oregon-klamath-falls-or-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Klamath County | PM-2.5 (2006) | * | Klamath Falls, OR - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "los-angeles-south-coast-air-basin-ca-serious",
      "state": "CALIFORNIA",
      "county": "Los Angeles County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "partial_county": "yes",
      "nonattainment_area_name": "Los Angeles-South Coast Air Basin, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-los-angeles-county-california-los-angeles-south-coast-air-basin-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-los-angeles-county-california-los-angeles-south-coast-air-basin-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Los Angeles County | Lead (2008) | * | Los Angeles County-South Coast Air Basin, CA | PM-2.5 (1997) | * | Los Angeles-South Coast Air Basin, CA - (Moderate) | PM-2.5 (2006) | * | Los Angeles-South Coast Air Basin, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-serious",
      "state": "CALIFORNIA",
      "county": "Madera County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-madera-county-california-san-joaquin-valley-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-madera-county-california-san-joaquin-valley-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Madera County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | | San Joaquin Valley, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-francisco-bay-area-ca-moderate",
      "state": "CALIFORNIA",
      "county": "Marin County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "nonattainment_area_name": "San Francisco Bay Area, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-marin-county-california-san-francisco-bay-area-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-marin-county-california-san-francisco-bay-area-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Marin County | PM-2.5 (2006) | | San Francisco Bay Area, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-serious",
      "state": "CALIFORNIA",
      "county": "Merced County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-merced-county-california-san-joaquin-valley-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-merced-county-california-san-joaquin-valley-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Merced County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | | San Joaquin Valley, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-francisco-bay-area-ca-moderate",
      "state": "CALIFORNIA",
      "county": "Napa County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "nonattainment_area_name": "San Francisco Bay Area, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-napa-county-california-san-francisco-bay-area-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-napa-county-california-san-francisco-bay-area-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Napa County | PM-2.5 (2006) | | San Francisco Bay Area, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "los-angeles-south-coast-air-basin-ca-serious",
      "state": "CALIFORNIA",
      "county": "Orange County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "nonattainment_area_name": "Los Angeles-South Coast Air Basin, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-orange-county-california-los-angeles-south-coast-air-basin-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-orange-county-california-los-angeles-south-coast-air-basin-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Orange County | PM-2.5 (1997) | | Los Angeles-South Coast Air Basin, CA - (Moderate) | PM-2.5 (2006) | | Los Angeles-South Coast Air Basin, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "west-central-pinal-az-moderate",
      "state": "ARIZONA",
      "county": "Pinal County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "partial_county": "yes",
      "nonattainment_area_name": "West Central Pinal, AZ - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-pinal-county-arizona-west-central-pinal-az-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-pinal-county-arizona-west-central-pinal-az-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Pinal County | Lead (2008) | * | Hayden, AZ | PM-10 (1987) | * | Hayden, AZ - (Moderate) | PM-10 (1987) | * | Maricopa and Pinal Counties; Phoenix planning area, AZ - (Serious) | PM-10 (1987) | * | Miami, AZ - (Moderate) | PM-10 (1987) | * | Pinal County (part); West Pinal, AZ - (Serious) | PM-2.5 (2006) | * | West Central Pinal, AZ - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "sacramento-ca-moderate",
      "state": "CALIFORNIA",
      "county": "Placer County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "partial_county": "yes",
      "nonattainment_area_name": "Sacramento, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-placer-county-california-sacramento-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-placer-county-california-sacramento-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Placer County | PM-2.5 (2006) | * | Sacramento, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "los-angeles-south-coast-air-basin-ca-serious",
      "state": "CALIFORNIA",
      "county": "Riverside County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "partial_county": "yes",
      "nonattainment_area_name": "Los Angeles-South Coast Air Basin, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-riverside-county-california-los-angeles-south-coast-air-basin-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-riverside-county-california-los-angeles-south-coast-air-basin-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Riverside County | PM-10 (1987) | * | Riverside County; Coachella Valley planning area, CA - (Serious) | PM-2.5 (1997) | * | Los Angeles-South Coast Air Basin, CA - (Moderate) | PM-2.5 (2006) | * | Los Angeles-South Coast Air Basin, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "sacramento-ca-moderate",
      "state": "CALIFORNIA",
      "county": "Sacramento County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "nonattainment_area_name": "Sacramento, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-sacramento-county-california-sacramento-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-sacramento-county-california-sacramento-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Sacramento County | PM-2.5 (2006) | | Sacramento, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "los-angeles-south-coast-air-basin-ca-serious",
      "state": "CALIFORNIA",
      "county": "San Bernardino County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "partial_county": "yes",
      "nonattainment_area_name": "Los Angeles-South Coast Air Basin, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-san-bernardino-county-california-los-angeles-south-coast-air-basin-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-san-bernardino-county-california-los-angeles-south-coast-air-basin-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "San Bernardino County | PM-10 (1987) | * | San Bernardino County, CA - (Moderate) | PM-10 (1987) | * | Trona, CA - (Moderate) | PM-2.5 (1997) | * | Los Angeles-South Coast Air Basin, CA - (Moderate) | PM-2.5 (2006) | * | Los Angeles-South Coast Air Basin, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-francisco-bay-area-ca-moderate",
      "state": "CALIFORNIA",
      "county": "San Francisco County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "nonattainment_area_name": "San Francisco Bay Area, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-san-francisco-county-california-san-francisco-bay-area-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-san-francisco-county-california-san-francisco-bay-area-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "San Francisco County | PM-2.5 (2006) | | San Francisco Bay Area, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-serious",
      "state": "CALIFORNIA",
      "county": "San Joaquin County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-san-joaquin-county-california-san-joaquin-valley-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-san-joaquin-county-california-san-joaquin-valley-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "San Joaquin County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | | San Joaquin Valley, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-francisco-bay-area-ca-moderate",
      "state": "CALIFORNIA",
      "county": "San Mateo County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "nonattainment_area_name": "San Francisco Bay Area, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-san-mateo-county-california-san-francisco-bay-area-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-san-mateo-county-california-san-francisco-bay-area-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "San Mateo County | PM-2.5 (2006) | | San Francisco Bay Area, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-francisco-bay-area-ca-moderate",
      "state": "CALIFORNIA",
      "county": "Santa Clara County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "nonattainment_area_name": "San Francisco Bay Area, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-santa-clara-county-california-san-francisco-bay-area-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-santa-clara-county-california-san-francisco-bay-area-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Santa Clara County | PM-2.5 (2006) | | San Francisco Bay Area, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "sacramento-ca-moderate",
      "state": "CALIFORNIA",
      "county": "Solano County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "partial_county": "yes",
      "nonattainment_area_name": "Sacramento, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-solano-county-california-sacramento-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-solano-county-california-sacramento-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Solano County | PM-2.5 (2006) | * | Sacramento, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-francisco-bay-area-ca-moderate",
      "state": "CALIFORNIA",
      "county": "Solano County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "partial_county": "yes",
      "nonattainment_area_name": "San Francisco Bay Area, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-solano-county-california-san-francisco-bay-area-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-solano-county-california-san-francisco-bay-area-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Solano County | PM-2.5 (2006) | * | Sacramento, CA - (Moderate) | PM-2.5 (2006) | * | San Francisco Bay Area, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-francisco-bay-area-ca-moderate",
      "state": "CALIFORNIA",
      "county": "Sonoma County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "partial_county": "yes",
      "nonattainment_area_name": "San Francisco Bay Area, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-sonoma-county-california-san-francisco-bay-area-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-sonoma-county-california-san-francisco-bay-area-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Sonoma County | PM-2.5 (2006) | * | San Francisco Bay Area, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-serious",
      "state": "CALIFORNIA",
      "county": "Stanislaus County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-stanislaus-county-california-san-joaquin-valley-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-stanislaus-county-california-san-joaquin-valley-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Stanislaus County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | | San Joaquin Valley, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-serious",
      "state": "CALIFORNIA",
      "county": "Tulare County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-tulare-county-california-san-joaquin-valley-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-tulare-county-california-san-joaquin-valley-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Tulare County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | | San Joaquin Valley, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "sacramento-ca-moderate",
      "state": "CALIFORNIA",
      "county": "Yolo County",
      "pollutant_naaqs": "PM-2.5 (2006)",
      "partial_county": "yes",
      "nonattainment_area_name": "Sacramento, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2006-yolo-county-california-sacramento-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2006-yolo-county-california-sacramento-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Yolo County | PM-2.5 (2006) | * | Sacramento, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-serious",
      "state": "CALIFORNIA",
      "county": "Fresno County",
      "pollutant_naaqs": "PM-2.5 (2012)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2012-fresno-county-california-san-joaquin-valley-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2012-fresno-county-california-san-joaquin-valley-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Fresno County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2012) | | San Joaquin Valley, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "imperial-county-ca-moderate",
      "state": "CALIFORNIA",
      "county": "Imperial County",
      "pollutant_naaqs": "PM-2.5 (2012)",
      "partial_county": "yes",
      "nonattainment_area_name": "Imperial County, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2012-imperial-county-california-imperial-county-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2012-imperial-county-california-imperial-county-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Imperial County | PM-2.5 (2006) | * | Imperial County, CA - (Moderate) | PM-2.5 (2012) | * | Imperial County, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-serious",
      "state": "CALIFORNIA",
      "county": "Kern County",
      "pollutant_naaqs": "PM-2.5 (2012)",
      "partial_county": "yes",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2012-kern-county-california-san-joaquin-valley-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2012-kern-county-california-san-joaquin-valley-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Kern County | PM-10 (1987) | * | East Kern County, CA - (Serious) | PM-2.5 (1997) | * | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | * | San Joaquin Valley, CA - (Serious) | PM-2.5 (2012) | * | San Joaquin Valley, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-serious",
      "state": "CALIFORNIA",
      "county": "Kings County",
      "pollutant_naaqs": "PM-2.5 (2012)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2012-kings-county-california-san-joaquin-valley-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2012-kings-county-california-san-joaquin-valley-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Kings County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2012) | | San Joaquin Valley, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "los-angeles-south-coast-air-basin-ca-serious",
      "state": "CALIFORNIA",
      "county": "Los Angeles County",
      "pollutant_naaqs": "PM-2.5 (2012)",
      "partial_county": "yes",
      "nonattainment_area_name": "Los Angeles-South Coast Air Basin, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2012-los-angeles-county-california-los-angeles-south-coast-air-basin-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2012-los-angeles-county-california-los-angeles-south-coast-air-basin-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Los Angeles County | Lead (2008) | * | Los Angeles County-South Coast Air Basin, CA | PM-2.5 (1997) | * | Los Angeles-South Coast Air Basin, CA - (Moderate) | PM-2.5 (2006) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | PM-2.5 (2012) | * | Los Angeles-South Coast Air Basin, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-serious",
      "state": "CALIFORNIA",
      "county": "Madera County",
      "pollutant_naaqs": "PM-2.5 (2012)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2012-madera-county-california-san-joaquin-valley-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2012-madera-county-california-san-joaquin-valley-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Madera County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2012) | | San Joaquin Valley, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-serious",
      "state": "CALIFORNIA",
      "county": "Merced County",
      "pollutant_naaqs": "PM-2.5 (2012)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2012-merced-county-california-san-joaquin-valley-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2012-merced-county-california-san-joaquin-valley-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Merced County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2012) | | San Joaquin Valley, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "los-angeles-south-coast-air-basin-ca-serious",
      "state": "CALIFORNIA",
      "county": "Orange County",
      "pollutant_naaqs": "PM-2.5 (2012)",
      "nonattainment_area_name": "Los Angeles-South Coast Air Basin, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2012-orange-county-california-los-angeles-south-coast-air-basin-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2012-orange-county-california-los-angeles-south-coast-air-basin-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Orange County | PM-2.5 (1997) | | Los Angeles-South Coast Air Basin, CA - (Moderate) | PM-2.5 (2006) | | Los Angeles-South Coast Air Basin, CA - (Serious) | PM-2.5 (2012) | | Los Angeles-South Coast Air Basin, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "plumas-county-ca-serious",
      "state": "CALIFORNIA",
      "county": "Plumas County",
      "pollutant_naaqs": "PM-2.5 (2012)",
      "partial_county": "yes",
      "nonattainment_area_name": "Plumas County, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2012-plumas-county-california-plumas-county-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2012-plumas-county-california-plumas-county-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Plumas County | PM-2.5 (2012) | * | Plumas County, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "los-angeles-south-coast-air-basin-ca-serious",
      "state": "CALIFORNIA",
      "county": "Riverside County",
      "pollutant_naaqs": "PM-2.5 (2012)",
      "partial_county": "yes",
      "nonattainment_area_name": "Los Angeles-South Coast Air Basin, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2012-riverside-county-california-los-angeles-south-coast-air-basin-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2012-riverside-county-california-los-angeles-south-coast-air-basin-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Riverside County | PM-10 (1987) | * | Riverside County; Coachella Valley planning area, CA - (Serious) | PM-2.5 (1997) | * | Los Angeles-South Coast Air Basin, CA - (Moderate) | PM-2.5 (2006) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | PM-2.5 (2012) | * | Los Angeles-South Coast Air Basin, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "los-angeles-south-coast-air-basin-ca-serious",
      "state": "CALIFORNIA",
      "county": "San Bernardino County",
      "pollutant_naaqs": "PM-2.5 (2012)",
      "partial_county": "yes",
      "nonattainment_area_name": "Los Angeles-South Coast Air Basin, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2012-san-bernardino-county-california-los-angeles-south-coast-air-basin-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2012-san-bernardino-county-california-los-angeles-south-coast-air-basin-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "San Bernardino County | PM-10 (1987) | * | San Bernardino County, CA - (Moderate) | PM-10 (1987) | * | Trona, CA - (Moderate) | PM-2.5 (1997) | * | Los Angeles-South Coast Air Basin, CA - (Moderate) | PM-2.5 (2006) | * | Los Angeles-South Coast Air Basin, CA - (Serious) | PM-2.5 (2012) | * | Los Angeles-South Coast Air Basin, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-serious",
      "state": "CALIFORNIA",
      "county": "San Joaquin County",
      "pollutant_naaqs": "PM-2.5 (2012)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2012-san-joaquin-county-california-san-joaquin-valley-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2012-san-joaquin-county-california-san-joaquin-valley-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "San Joaquin County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2012) | | San Joaquin Valley, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-serious",
      "state": "CALIFORNIA",
      "county": "Stanislaus County",
      "pollutant_naaqs": "PM-2.5 (2012)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2012-stanislaus-county-california-san-joaquin-valley-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2012-stanislaus-county-california-san-joaquin-valley-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Stanislaus County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2012) | | San Joaquin Valley, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-joaquin-valley-ca-serious",
      "state": "CALIFORNIA",
      "county": "Tulare County",
      "pollutant_naaqs": "PM-2.5 (2012)",
      "nonattainment_area_name": "San Joaquin Valley, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-2-5-2012-tulare-county-california-san-joaquin-valley-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-2-5-2012-tulare-county-california-san-joaquin-valley-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Tulare County | PM-2.5 (1997) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2006) | | San Joaquin Valley, CA - (Serious) | PM-2.5 (2012) | | San Joaquin Valley, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "power-bannock-counties-fort-hall-indian-reservation-id-moderate",
      "state": "IDAHO",
      "county": "Bannock County",
      "pollutant_naaqs": "PM-10 (1987)",
      "partial_county": "yes",
      "nonattainment_area_name": "Power-Bannock Counties; Fort Hall Indian Reservation, ID - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-10-1987-bannock-county-idaho-power-bannock-counties-fort-hall-indian-reservation-id-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-10-1987-bannock-county-idaho-power-bannock-counties-fort-hall-indian-reservation-id-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Bannock County | PM-10 (1987) | * | Power-Bannock Counties; Fort Hall Indian Reservation, ID - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "cochise-county-paul-spur-douglas-planning-area-az-moderate",
      "state": "ARIZONA",
      "county": "Cochise County",
      "pollutant_naaqs": "PM-10 (1987)",
      "partial_county": "yes",
      "nonattainment_area_name": "Cochise County; Paul Spur/Douglas planning area, AZ - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-10-1987-cochise-county-arizona-cochise-county-paul-spur-douglas-planning-area-az-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-10-1987-cochise-county-arizona-cochise-county-paul-spur-douglas-planning-area-az-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Cochise County | PM-10 (1987) | * | Cochise County; Paul Spur/Douglas planning area, AZ - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "dona-ana-county-anthony-nm-moderate",
      "state": "NEW MEXICO",
      "county": "Dona Ana County",
      "pollutant_naaqs": "PM-10 (1987)",
      "partial_county": "yes",
      "nonattainment_area_name": "Dona Ana County; Anthony, NM - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-10-1987-dona-ana-county-new-mexico-dona-ana-county-anthony-nm-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-10-1987-dona-ana-county-new-mexico-dona-ana-county-anthony-nm-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Dona Ana County | PM-10 (1987) | * | Dona Ana County; Anthony, NM - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "el-paso-county-tx-moderate",
      "state": "TEXAS",
      "county": "El Paso County",
      "pollutant_naaqs": "PM-10 (1987)",
      "partial_county": "yes",
      "nonattainment_area_name": "El Paso County, TX - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-10-1987-el-paso-county-texas-el-paso-county-tx-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-10-1987-el-paso-county-texas-el-paso-county-tx-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "El Paso County | PM-10 (1987) | * | El Paso County, TX - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "hayden-az-moderate",
      "state": "ARIZONA",
      "county": "Gila County",
      "pollutant_naaqs": "PM-10 (1987)",
      "partial_county": "yes",
      "nonattainment_area_name": "Hayden, AZ - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-10-1987-gila-county-arizona-hayden-az-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-10-1987-gila-county-arizona-hayden-az-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Gila County | Lead (2008) | * | Hayden, AZ | PM-10 (1987) | * | Hayden, AZ - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "miami-az-moderate",
      "state": "ARIZONA",
      "county": "Gila County",
      "pollutant_naaqs": "PM-10 (1987)",
      "partial_county": "yes",
      "nonattainment_area_name": "Miami, AZ - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-10-1987-gila-county-arizona-miami-az-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-10-1987-gila-county-arizona-miami-az-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Gila County | Lead (2008) | * | Hayden, AZ | PM-10 (1987) | * | Hayden, AZ - (Moderate) | PM-10 (1987) | * | Miami, AZ - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "inyo-county-owens-valley-planning-area-ca-serious",
      "state": "CALIFORNIA",
      "county": "Inyo County",
      "pollutant_naaqs": "PM-10 (1987)",
      "partial_county": "yes",
      "nonattainment_area_name": "Inyo County; Owens Valley planning area, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-10-1987-inyo-county-california-inyo-county-owens-valley-planning-area-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-10-1987-inyo-county-california-inyo-county-owens-valley-planning-area-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Inyo County | PM-10 (1987) | * | Inyo County; Owens Valley planning area, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "east-kern-county-ca-serious",
      "state": "CALIFORNIA",
      "county": "Kern County",
      "pollutant_naaqs": "PM-10 (1987)",
      "partial_county": "yes",
      "nonattainment_area_name": "East Kern County, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-10-1987-kern-county-california-east-kern-county-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-10-1987-kern-county-california-east-kern-county-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Kern County | PM-10 (1987) | * | East Kern County, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "lake-county-polson-mt-moderate",
      "state": "MONTANA",
      "county": "Lake County",
      "pollutant_naaqs": "PM-10 (1987)",
      "partial_county": "yes",
      "nonattainment_area_name": "Lake County; Polson, MT - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-10-1987-lake-county-montana-lake-county-polson-mt-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-10-1987-lake-county-montana-lake-county-polson-mt-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Lake County | PM-10 (1987) | * | Lake County; Polson, MT - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "lake-county-ronan-mt-moderate",
      "state": "MONTANA",
      "county": "Lake County",
      "pollutant_naaqs": "PM-10 (1987)",
      "partial_county": "yes",
      "nonattainment_area_name": "Lake County; Ronan, MT - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-10-1987-lake-county-montana-lake-county-ronan-mt-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-10-1987-lake-county-montana-lake-county-ronan-mt-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Lake County | PM-10 (1987) | * | Lake County; Polson, MT - (Moderate) | PM-10 (1987) | * | Lake County; Ronan, MT - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "maricopa-and-pinal-counties-phoenix-planning-area-az-serious",
      "state": "ARIZONA",
      "county": "Maricopa County",
      "pollutant_naaqs": "PM-10 (1987)",
      "partial_county": "yes",
      "nonattainment_area_name": "Maricopa and Pinal Counties; Phoenix planning area, AZ - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-10-1987-maricopa-county-arizona-maricopa-and-pinal-counties-phoenix-planning-area-az-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-10-1987-maricopa-county-arizona-maricopa-and-pinal-counties-phoenix-planning-area-az-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Maricopa County | PM-10 (1987) | * | Maricopa and Pinal Counties; Phoenix planning area, AZ - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "mono-basin-ca-moderate",
      "state": "CALIFORNIA",
      "county": "Mono County",
      "pollutant_naaqs": "PM-10 (1987)",
      "partial_county": "yes",
      "nonattainment_area_name": "Mono Basin, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-10-1987-mono-county-california-mono-basin-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-10-1987-mono-county-california-mono-basin-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Mono County | PM-10 (1987) | * | Mono Basin, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-york-county-ny-moderate",
      "state": "NEW YORK",
      "county": "New York County",
      "pollutant_naaqs": "PM-10 (1987)",
      "nonattainment_area_name": "New York County, NY - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-10-1987-new-york-county-new-york-new-york-county-ny-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-10-1987-new-york-county-new-york-new-york-county-ny-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "New York County | PM-10 (1987) | | New York County, NY - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "pima-county-rillito-planning-area-az-moderate",
      "state": "ARIZONA",
      "county": "Pima County",
      "pollutant_naaqs": "PM-10 (1987)",
      "partial_county": "yes",
      "nonattainment_area_name": "Pima County; Rillito planning area, AZ - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-10-1987-pima-county-arizona-pima-county-rillito-planning-area-az-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-10-1987-pima-county-arizona-pima-county-rillito-planning-area-az-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Pima County | PM-10 (1987) | * | Pima County; Rillito planning area, AZ - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "hayden-az-moderate",
      "state": "ARIZONA",
      "county": "Pinal County",
      "pollutant_naaqs": "PM-10 (1987)",
      "partial_county": "yes",
      "nonattainment_area_name": "Hayden, AZ - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-10-1987-pinal-county-arizona-hayden-az-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-10-1987-pinal-county-arizona-hayden-az-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Pinal County | Lead (2008) | * | Hayden, AZ | PM-10 (1987) | * | Hayden, AZ - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "maricopa-and-pinal-counties-phoenix-planning-area-az-serious",
      "state": "ARIZONA",
      "county": "Pinal County",
      "pollutant_naaqs": "PM-10 (1987)",
      "partial_county": "yes",
      "nonattainment_area_name": "Maricopa and Pinal Counties; Phoenix planning area, AZ - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-10-1987-pinal-county-arizona-maricopa-and-pinal-counties-phoenix-planning-area-az-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-10-1987-pinal-county-arizona-maricopa-and-pinal-counties-phoenix-planning-area-az-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Pinal County | Lead (2008) | * | Hayden, AZ | PM-10 (1987) | * | Hayden, AZ - (Moderate) | PM-10 (1987) | * | Maricopa and Pinal Counties; Phoenix planning area, AZ - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "miami-az-moderate",
      "state": "ARIZONA",
      "county": "Pinal County",
      "pollutant_naaqs": "PM-10 (1987)",
      "partial_county": "yes",
      "nonattainment_area_name": "Miami, AZ - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-10-1987-pinal-county-arizona-miami-az-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-10-1987-pinal-county-arizona-miami-az-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Pinal County | Lead (2008) | * | Hayden, AZ | PM-10 (1987) | * | Hayden, AZ - (Moderate) | PM-10 (1987) | * | Maricopa and Pinal Counties; Phoenix planning area, AZ - (Serious) | PM-10 (1987) | * | Miami, AZ - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "pinal-county-part-west-pinal-az-serious",
      "state": "ARIZONA",
      "county": "Pinal County",
      "pollutant_naaqs": "PM-10 (1987)",
      "partial_county": "yes",
      "nonattainment_area_name": "Pinal County (part); West Pinal, AZ - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-10-1987-pinal-county-arizona-pinal-county-part-west-pinal-az-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-10-1987-pinal-county-arizona-pinal-county-part-west-pinal-az-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Pinal County | Lead (2008) | * | Hayden, AZ | PM-10 (1987) | * | Hayden, AZ - (Moderate) | PM-10 (1987) | * | Maricopa and Pinal Counties; Phoenix planning area, AZ - (Serious) | PM-10 (1987) | * | Miami, AZ - (Moderate) | PM-10 (1987) | * | Pinal County (part); West Pinal, AZ - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "power-bannock-counties-fort-hall-indian-reservation-id-moderate",
      "state": "IDAHO",
      "county": "Power County",
      "pollutant_naaqs": "PM-10 (1987)",
      "partial_county": "yes",
      "nonattainment_area_name": "Power-Bannock Counties; Fort Hall Indian Reservation, ID - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-10-1987-power-county-idaho-power-bannock-counties-fort-hall-indian-reservation-id-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-10-1987-power-county-idaho-power-bannock-counties-fort-hall-indian-reservation-id-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Power County | PM-10 (1987) | * | Power-Bannock Counties; Fort Hall Indian Reservation, ID - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "riverside-county-coachella-valley-planning-area-ca-serious",
      "state": "CALIFORNIA",
      "county": "Riverside County",
      "pollutant_naaqs": "PM-10 (1987)",
      "partial_county": "yes",
      "nonattainment_area_name": "Riverside County; Coachella Valley planning area, CA - (Serious)",
      "data_as_of": "August 31, 2026",
      "id": "pm-10-1987-riverside-county-california-riverside-county-coachella-valley-planning-area-ca-serious",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-10-1987-riverside-county-california-riverside-county-coachella-valley-planning-area-ca-serious/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Riverside County | PM-10 (1987) | * | Riverside County; Coachella Valley planning area, CA - (Serious)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "rosebud-county-lame-deer-mt-moderate",
      "state": "MONTANA",
      "county": "Rosebud County",
      "pollutant_naaqs": "PM-10 (1987)",
      "partial_county": "yes",
      "nonattainment_area_name": "Rosebud County; Lame Deer, MT - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-10-1987-rosebud-county-montana-rosebud-county-lame-deer-mt-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-10-1987-rosebud-county-montana-rosebud-county-lame-deer-mt-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Rosebud County | PM-10 (1987) | * | Rosebud County; Lame Deer, MT - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-bernardino-county-ca-moderate",
      "state": "CALIFORNIA",
      "county": "San Bernardino County",
      "pollutant_naaqs": "PM-10 (1987)",
      "partial_county": "yes",
      "nonattainment_area_name": "San Bernardino County, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-10-1987-san-bernardino-county-california-san-bernardino-county-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-10-1987-san-bernardino-county-california-san-bernardino-county-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "San Bernardino County | PM-10 (1987) | * | San Bernardino County, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "trona-ca-moderate",
      "state": "CALIFORNIA",
      "county": "San Bernardino County",
      "pollutant_naaqs": "PM-10 (1987)",
      "partial_county": "yes",
      "nonattainment_area_name": "Trona, CA - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-10-1987-san-bernardino-county-california-trona-ca-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-10-1987-san-bernardino-county-california-trona-ca-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "San Bernardino County | PM-10 (1987) | * | San Bernardino County, CA - (Moderate) | PM-10 (1987) | * | Trona, CA - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "santa-cruz-county-nogales-planning-area-az-moderate",
      "state": "ARIZONA",
      "county": "Santa Cruz County",
      "pollutant_naaqs": "PM-10 (1987)",
      "partial_county": "yes",
      "nonattainment_area_name": "Santa Cruz County; Nogales planning area, AZ - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-10-1987-santa-cruz-county-arizona-santa-cruz-county-nogales-planning-area-az-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-10-1987-santa-cruz-county-arizona-santa-cruz-county-nogales-planning-area-az-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Santa Cruz County | PM-10 (1987) | * | Santa Cruz County; Nogales planning area, AZ - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "yuma-az-moderate",
      "state": "ARIZONA",
      "county": "Yuma County",
      "pollutant_naaqs": "PM-10 (1987)",
      "partial_county": "yes",
      "nonattainment_area_name": "Yuma, AZ - (Moderate)",
      "data_as_of": "August 31, 2026",
      "id": "pm-10-1987-yuma-county-arizona-yuma-az-moderate",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/pm-10-1987-yuma-county-arizona-yuma-az-moderate/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Yuma County | PM-10 (1987) | * | Yuma, AZ - (Moderate)",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "armstrong-county-madison-mahoning-boggs-washington-pine-pa",
      "state": "PENNSYLVANIA",
      "county": "Armstrong County",
      "pollutant_naaqs": "Sulfur Dioxide (1971)",
      "partial_county": "yes",
      "nonattainment_area_name": "Armstrong County: Madison, Mahoning, Boggs, Washington, Pine, PA",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-1971-armstrong-county-pennsylvania-armstrong-county-madison-mahoning-boggs-washington-pine-pa",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-1971-armstrong-county-pennsylvania-armstrong-county-madison-mahoning-boggs-washington-pine-pa/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Armstrong County | Sulfur Dioxide (1971) | * | Armstrong County: Madison, Mahoning, Boggs, Washington, Pine, PA",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "piti-gu",
      "state": "GUAM",
      "county": "Guam",
      "pollutant_naaqs": "Sulfur Dioxide (1971)",
      "partial_county": "yes",
      "nonattainment_area_name": "Piti, GU",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-1971-guam-guam-piti-gu",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-1971-guam-guam-piti-gu/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Guam | Sulfur Dioxide (1971) | * | Piti, GU",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "tanguisson-gu",
      "state": "GUAM",
      "county": "Guam",
      "pollutant_naaqs": "Sulfur Dioxide (1971)",
      "partial_county": "yes",
      "nonattainment_area_name": "Tanguisson, GU",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-1971-guam-guam-tanguisson-gu",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-1971-guam-guam-tanguisson-gu/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Guam | Sulfur Dioxide (1971) | * | Piti, GU | Sulfur Dioxide (1971) | * | Tanguisson, GU",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "hayden-pinal-county-az",
      "state": "ARIZONA",
      "county": "Pinal County",
      "pollutant_naaqs": "Sulfur Dioxide (1971)",
      "partial_county": "yes",
      "nonattainment_area_name": "Hayden (Pinal County), AZ",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-1971-pinal-county-arizona-hayden-pinal-county-az",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-1971-pinal-county-arizona-hayden-pinal-county-az/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Pinal County | Lead (2008) | * | Hayden, AZ | PM-10 (1987) | * | Hayden, AZ - (Moderate) | PM-10 (1987) | * | Maricopa and Pinal Counties; Phoenix planning area, AZ - (Serious) | PM-10 (1987) | * | Miami, AZ - (Moderate) | PM-10 (1987) | * | Pinal County (part); West Pinal, AZ - (Serious) | PM-2.5 (2006) | * | West Central Pinal, AZ - (Moderate) | Sulfur Dioxide (1971) | * | Hayden (Pinal County), AZ",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "salt-lake-county-ut",
      "state": "UTAH",
      "county": "Salt Lake County",
      "pollutant_naaqs": "Sulfur Dioxide (1971)",
      "nonattainment_area_name": "Salt Lake County, UT",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-1971-salt-lake-county-utah-salt-lake-county-ut",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-1971-salt-lake-county-utah-salt-lake-county-ut/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Salt Lake County | Sulfur Dioxide (1971) | | Salt Lake County, UT",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "tooele-county-ut",
      "state": "UTAH",
      "county": "Tooele County",
      "pollutant_naaqs": "Sulfur Dioxide (1971)",
      "partial_county": "yes",
      "nonattainment_area_name": "Tooele County, UT",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-1971-tooele-county-utah-tooele-county-ut",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-1971-tooele-county-utah-tooele-county-ut/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Tooele County | Sulfur Dioxide (1971) | * | Tooele County, UT",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "laurel-area-yellowstone-county-mt",
      "state": "MONTANA",
      "county": "Yellowstone County",
      "pollutant_naaqs": "Sulfur Dioxide (1971)",
      "partial_county": "yes",
      "nonattainment_area_name": "Laurel Area (Yellowstone County), MT",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-1971-yellowstone-county-montana-laurel-area-yellowstone-county-mt",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-1971-yellowstone-county-montana-laurel-area-yellowstone-county-mt/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Yellowstone County | Sulfur Dioxide (1971) | * | Laurel Area (Yellowstone County), MT",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "freestone-and-anderson-counties-tx",
      "state": "TEXAS",
      "county": "Anderson County",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "Freestone and Anderson Counties, TX",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-anderson-county-texas-freestone-and-anderson-counties-tx",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-anderson-county-texas-freestone-and-anderson-counties-tx/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Anderson County | Sulfur Dioxide (2010) | * | Freestone and Anderson Counties, TX",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "anne-arundel-county-and-baltimore-county-md",
      "state": "MARYLAND",
      "county": "Anne Arundel County",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "Anne Arundel County and Baltimore County, MD",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-anne-arundel-county-maryland-anne-arundel-county-and-baltimore-county-md",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-anne-arundel-county-maryland-anne-arundel-county-and-baltimore-county-md/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Anne Arundel County | Sulfur Dioxide (2010) | * | Anne Arundel County and Baltimore County, MD",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "indiana-pa",
      "state": "PENNSYLVANIA",
      "county": "Armstrong County",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "Indiana, PA",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-armstrong-county-pennsylvania-indiana-pa",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-armstrong-county-pennsylvania-indiana-pa/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Armstrong County | Sulfur Dioxide (1971) | * | Armstrong County: Madison, Mahoning, Boggs, Washington, Pine, PA | Sulfur Dioxide (2010) | * | Indiana, PA",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "anne-arundel-county-and-baltimore-county-md",
      "state": "MARYLAND",
      "county": "Baltimore County",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "Anne Arundel County and Baltimore County, MD",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-baltimore-county-maryland-anne-arundel-county-and-baltimore-county-md",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-baltimore-county-maryland-anne-arundel-county-and-baltimore-county-md/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Baltimore County | Sulfur Dioxide (2010) | * | Anne Arundel County and Baltimore County, MD",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-juan-pr",
      "state": "PUERTO RICO",
      "county": "Bayamon Municipio",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "San Juan, PR",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-bayamon-municipio-puerto-rico-san-juan-pr",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-bayamon-municipio-puerto-rico-san-juan-pr/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Bayamon Municipio | Sulfur Dioxide (2010) | * | San Juan, PR",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "cambria-westmoreland-area-pa",
      "state": "PENNSYLVANIA",
      "county": "Cambria County",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "Cambria-Westmoreland Area, PA",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-cambria-county-pennsylvania-cambria-westmoreland-area-pa",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-cambria-county-pennsylvania-cambria-westmoreland-area-pa/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Cambria County | Sulfur Dioxide (2010) | * | Cambria-Westmoreland Area, PA",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-juan-pr",
      "state": "PUERTO RICO",
      "county": "Catano Municipio",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "nonattainment_area_name": "San Juan, PR",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-catano-municipio-puerto-rico-san-juan-pr",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-catano-municipio-puerto-rico-san-juan-pr/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Catano Municipio | Sulfur Dioxide (2010) | | San Juan, PR",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "evangeline-parish-partial-la",
      "state": "LOUISIANA",
      "county": "Evangeline Parish",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "Evangeline Parish (Partial), LA",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-evangeline-parish-louisiana-evangeline-parish-partial-la",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-evangeline-parish-louisiana-evangeline-parish-partial-la/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Evangeline Parish | Sulfur Dioxide (2010) | * | Evangeline Parish (Partial), LA",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "freestone-and-anderson-counties-tx",
      "state": "TEXAS",
      "county": "Freestone County",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "Freestone and Anderson Counties, TX",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-freestone-county-texas-freestone-and-anderson-counties-tx",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-freestone-county-texas-freestone-and-anderson-counties-tx/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Freestone County | Sulfur Dioxide (2010) | * | Freestone and Anderson Counties, TX",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "hayden-az",
      "state": "ARIZONA",
      "county": "Gila County",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "Hayden, AZ",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-gila-county-arizona-hayden-az",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-gila-county-arizona-hayden-az/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Gila County | Lead (2008) | * | Hayden, AZ | PM-10 (1987) | * | Hayden, AZ - (Moderate) | PM-10 (1987) | * | Miami, AZ - (Moderate) | Sulfur Dioxide (2010) | * | Hayden, AZ",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "miami-az",
      "state": "ARIZONA",
      "county": "Gila County",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "Miami, AZ",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-gila-county-arizona-miami-az",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-gila-county-arizona-miami-az/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Gila County | Lead (2008) | * | Hayden, AZ | PM-10 (1987) | * | Hayden, AZ - (Moderate) | PM-10 (1987) | * | Miami, AZ - (Moderate) | Sulfur Dioxide (2010) | * | Hayden, AZ | Sulfur Dioxide (2010) | * | Miami, AZ",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "giles-county-va",
      "state": "VIRGINIA",
      "county": "Giles County",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "Giles County, VA",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-giles-county-virginia-giles-county-va",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-giles-county-virginia-giles-county-va/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Giles County | Sulfur Dioxide (2010) | * | Giles County, VA",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "piti-cabras-gu",
      "state": "GUAM",
      "county": "Guam",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "Piti-Cabras, GU",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-guam-guam-piti-cabras-gu",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-guam-guam-piti-cabras-gu/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Guam | Sulfur Dioxide (1971) | * | Piti, GU | Sulfur Dioxide (1971) | * | Tanguisson, GU | Sulfur Dioxide (2010) | * | Piti-Cabras, GU",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-juan-pr",
      "state": "PUERTO RICO",
      "county": "Guaynabo Municipio",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "San Juan, PR",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-guaynabo-municipio-puerto-rico-san-juan-pr",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-guaynabo-municipio-puerto-rico-san-juan-pr/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Guaynabo Municipio | Sulfur Dioxide (2010) | * | San Juan, PR",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "henderson-webster-counties-ky",
      "state": "KENTUCKY",
      "county": "Henderson County",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "Henderson-Webster Counties, KY",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-henderson-county-kentucky-henderson-webster-counties-ky",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-henderson-county-kentucky-henderson-webster-counties-ky/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Henderson County | Sulfur Dioxide (2010) | * | Henderson-Webster Counties, KY",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "howard-county-tx",
      "state": "TEXAS",
      "county": "Howard County",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "Howard County, TX",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-howard-county-texas-howard-county-tx",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-howard-county-texas-howard-county-tx/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Howard County | Sulfur Dioxide (2010) | * | Howard County, TX",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "hutchinson-county-tx",
      "state": "TEXAS",
      "county": "Hutchinson County",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "Hutchinson County, TX",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-hutchinson-county-texas-hutchinson-county-tx",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-hutchinson-county-texas-hutchinson-county-tx/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Hutchinson County | Sulfur Dioxide (2010) | * | Hutchinson County, TX",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "indiana-pa",
      "state": "PENNSYLVANIA",
      "county": "Indiana County",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "nonattainment_area_name": "Indiana, PA",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-indiana-county-pennsylvania-indiana-pa",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-indiana-county-pennsylvania-indiana-pa/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Indiana County | Sulfur Dioxide (2010) | | Indiana, PA",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "navarro-county-tx",
      "state": "TEXAS",
      "county": "Navarro County",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "Navarro County, TX",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-navarro-county-texas-navarro-county-tx",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-navarro-county-texas-navarro-county-tx/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Navarro County | Sulfur Dioxide (2010) | * | Navarro County, TX",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "new-madrid-county-mo",
      "state": "MISSOURI",
      "county": "New Madrid County",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "New Madrid County, MO",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-new-madrid-county-missouri-new-madrid-county-mo",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-new-madrid-county-missouri-new-madrid-county-mo/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "New Madrid County | Sulfur Dioxide (2010) | * | New Madrid County, MO",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "rusk-and-panola-counties-tx",
      "state": "TEXAS",
      "county": "Panola County",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "Rusk and Panola Counties, TX",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-panola-county-texas-rusk-and-panola-counties-tx",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-panola-county-texas-rusk-and-panola-counties-tx/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Panola County | Sulfur Dioxide (2010) | * | Rusk and Panola Counties, TX",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "hayden-az",
      "state": "ARIZONA",
      "county": "Pinal County",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "Hayden, AZ",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-pinal-county-arizona-hayden-az",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-pinal-county-arizona-hayden-az/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Pinal County | Lead (2008) | * | Hayden, AZ | PM-10 (1987) | * | Hayden, AZ - (Moderate) | PM-10 (1987) | * | Maricopa and Pinal Counties; Phoenix planning area, AZ - (Serious) | PM-10 (1987) | * | Miami, AZ - (Moderate) | PM-10 (1987) | * | Pinal County (part); West Pinal, AZ - (Serious) | PM-2.5 (2006) | * | West Central Pinal, AZ - (Moderate) | Sulfur Dioxide (1971) | * | Hayden (Pinal County), AZ | Sulfur Dioxide (2010) | * | Hayden, AZ",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "rusk-and-panola-counties-tx",
      "state": "TEXAS",
      "county": "Rusk County",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "Rusk and Panola Counties, TX",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-rusk-county-texas-rusk-and-panola-counties-tx",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-rusk-county-texas-rusk-and-panola-counties-tx/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Rusk County | Sulfur Dioxide (2010) | * | Rusk and Panola Counties, TX",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "guayama-salinas-pr",
      "state": "PUERTO RICO",
      "county": "Salinas Municipio",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "Guayama-Salinas, PR",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-salinas-municipio-puerto-rico-guayama-salinas-pr",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-salinas-municipio-puerto-rico-guayama-salinas-pr/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Salinas Municipio | Sulfur Dioxide (2010) | * | Guayama-Salinas, PR",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-juan-pr",
      "state": "PUERTO RICO",
      "county": "San Juan Municipio",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "San Juan, PR",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-san-juan-municipio-puerto-rico-san-juan-pr",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-san-juan-municipio-puerto-rico-san-juan-pr/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "San Juan Municipio | Sulfur Dioxide (2010) | * | San Juan, PR",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "st-bernard-parish-la",
      "state": "LOUISIANA",
      "county": "St. Bernard Parish",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "nonattainment_area_name": "St. Bernard Parish, LA",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-st-bernard-parish-louisiana-st-bernard-parish-la",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-st-bernard-parish-louisiana-st-bernard-parish-la/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "St. Bernard Parish | Sulfur Dioxide (2010) | | St. Bernard Parish, LA",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "st-lawrence-county-ny",
      "state": "NEW YORK",
      "county": "St. Lawrence County",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "St. Lawrence County, NY",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-st-lawrence-county-new-york-st-lawrence-county-ny",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-st-lawrence-county-new-york-st-lawrence-county-ny/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "St. Lawrence County | Sulfur Dioxide (2010) | * | St. Lawrence County, NY",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "sullivan-county-tn",
      "state": "TENNESSEE",
      "county": "Sullivan County",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "Sullivan County, TN",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-sullivan-county-tennessee-sullivan-county-tn",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-sullivan-county-tennessee-sullivan-county-tn/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Sullivan County | Sulfur Dioxide (2010) | * | Sullivan County, TN",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "titus-county-tx",
      "state": "TEXAS",
      "county": "Titus County",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "Titus County, TX",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-titus-county-texas-titus-county-tx",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-titus-county-texas-titus-county-tx/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Titus County | Sulfur Dioxide (2010) | * | Titus County, TX",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "san-juan-pr",
      "state": "PUERTO RICO",
      "county": "Toa Baja Municipio",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "San Juan, PR",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-toa-baja-municipio-puerto-rico-san-juan-pr",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-toa-baja-municipio-puerto-rico-san-juan-pr/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Toa Baja Municipio | Sulfur Dioxide (2010) | * | San Juan, PR",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "warren-pa",
      "state": "PENNSYLVANIA",
      "county": "Warren County",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "Warren, PA",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-warren-county-pennsylvania-warren-pa",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-warren-county-pennsylvania-warren-pa/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Warren County | Sulfur Dioxide (2010) | * | Warren, PA",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "henderson-webster-counties-ky",
      "state": "KENTUCKY",
      "county": "Webster County",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "Henderson-Webster Counties, KY",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-webster-county-kentucky-henderson-webster-counties-ky",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-webster-county-kentucky-henderson-webster-counties-ky/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Webster County | Sulfur Dioxide (2010) | * | Henderson-Webster Counties, KY",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    },
    {
      "row_id": "cambria-westmoreland-area-pa",
      "state": "PENNSYLVANIA",
      "county": "Westmoreland County",
      "pollutant_naaqs": "Sulfur Dioxide (2010)",
      "partial_county": "yes",
      "nonattainment_area_name": "Cambria-Westmoreland Area, PA",
      "data_as_of": "August 31, 2026",
      "id": "sulfur-dioxide-2010-westmoreland-county-pennsylvania-cambria-westmoreland-area-pa",
      "url": "https://referencesource.org/nonattainment-county-designations-by-pollutant/sulfur-dioxide-2010-westmoreland-county-pennsylvania-cambria-westmoreland-area-pa/",
      "source": "https://www3.epa.gov/airquality/greenbook/ancl.html",
      "source_quote": "Westmoreland County | Sulfur Dioxide (2010) | * | Cambria-Westmoreland Area, PA",
      "verified_fields": [
        "county",
        "data_as_of",
        "nonattainment_area_name",
        "pollutant_naaqs"
      ],
      "derived_fields": [
        "partial_county",
        "row_id",
        "state"
      ]
    }
  ]
}