AQI 62 · PM2.5 · Trend: Stable
| Average AQI | 62 |
| Good Days / Year | 175 |
| Unhealthy Days / Year | 25 |
| Primary Pollutant | PM2.5 |
| PM2.5 Average | 11 µg/m³ |
| Trend | → Stable |
| Monitoring Stations | 35 |
| Nonattainment Areas | 2 |
Utah faces unique air quality challenges from the Wasatch Front's geography, which creates devastating winter temperature inversions. Cold, stagnant air traps vehicle and industrial emissions between the Wasatch and Oquirrh mountain ranges, sometimes for weeks.
Utah DAQ (Division of Air Quality) manages standards. Wasatch Front winter air quality action plans. Mandatory vehicle emissions testing. Point-of-sale wood stove regulations.
Salt Lake City — PM2.5 nonattainment (winter inversions). Provo — PM2.5 nonattainment. The Wasatch Front has some of the worst winter PM2.5 episodes in the nation.