# san-joaquin-valley-ca-serious · CALIFORNIA · Kern County · PM-2.5 (2012) — Current EPA nonattainment county designations by pollutant

For san-joaquin-valley-ca-serious · CALIFORNIA · Kern County · PM-2.5 (2012), pollutant / naaqs is PM-2.5 (2012); nonattainment area name is San Joaquin Valley, CA - (Serious); partial county is yes; county or area is Kern County; state is CALIFORNIA; data current as of is August 31, 2026, recorded from its source on 2026-08-31.

- **Row ID:** san-joaquin-valley-ca-serious _(our reading, not quoted from the source)_
- **State:** CALIFORNIA _(our reading, not quoted from the source)_
- **County or area:** Kern County _(verified: appears in the quote below)_
- **Pollutant / NAAQS:** PM-2.5 (2012) _(verified: appears in the quote below)_
- **Partial county:** yes _(our reading, not quoted from the source)_
- **Nonattainment area name:** San Joaquin Valley, CA - (Serious) _(verified: appears in the quote below)_
- **Data current as of:** August 31, 2026 _(verified: appears in the quote below)_

## What the source says

> 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)

## Source

- https://www3.epa.gov/airquality/greenbook/ancl.html

Last verified: 2026-08-31. Review by: 2027-02-27.
Part of [Current EPA nonattainment county designations by pollutant](https://referencesource.org/nonattainment-county-designations-by-pollutant/).