# northern-wasatch-front-ut-serious · UTAH · Salt Lake County · 8-Hour Ozone (2015) — Current EPA nonattainment county designations by pollutant For northern-wasatch-front-ut-serious · UTAH · Salt Lake County · 8-Hour Ozone (2015), pollutant / naaqs is 8-Hour Ozone (2015); nonattainment area name is Northern Wasatch Front, UT - (Serious); county or area is Salt Lake County; state is UTAH; data current as of is August 31, 2026, recorded from its source on 2026-08-31. - **Row ID:** northern-wasatch-front-ut-serious _(our reading, not quoted from the source)_ - **State:** UTAH _(our reading, not quoted from the source)_ - **County or area:** Salt Lake County _(verified: appears in the quote below)_ - **Pollutant / NAAQS:** 8-Hour Ozone (2015) _(verified: appears in the quote below)_ - **Nonattainment area name:** Northern Wasatch Front, UT - (Serious) _(verified: appears in the quote below)_ - **Data current as of:** August 31, 2026 _(verified: appears in the quote below)_ ## What the source says > Salt Lake County | Sulfur Dioxide (1971) | | Salt Lake County, UT | 8-Hour Ozone (2015) | | Northern Wasatch Front, UT - (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/).