Utah DEQ: Air Quality Trend Charts by Pollutant

Box Elder Cache Carbon Davis Duchesne Grand Iron Salt Lake Tooele Uintah Utah Wasatch Washington Weber

PM 2.5 PM 10 Ozone Nitrogen Oxides (NO) Carbon Monoxide (CO) Sulfur Dioxide (SO2) Temperature Wind Solar Radiation

Employers activate mandatory trip reduction programs. Individuals should TravelWise by consolidating trips and choose cleaner transportation options. Limit volatile organic compound (VOC) emissions.

Last Updated: July 24, 2026 9:00 AM
(Data Not Quality Assured)

graphing

Action Forecast
Unrestricted Action
Voluntary Action
Mandatory Action

Health Forecast
Air Quality Index (AQI)	Ozone	PM 2.5	PM 10
Good	0 - 0.054 ppm	0 - 9.0 µg/m³	0 - 54.0 µg/m³
Moderate	0.055 - 0.070 ppm	9.1 - 35.4 µg/m³	54.1 - 154.0 µg/m³
Unhealthy for Sensitive Groups	0.071 - 0.085 ppm	35.5 - 55.4 µg/m³	154.1 - 254.0 µg/m³
Unhealthy	0.086 - 0.105 ppm	55.5 - 125.4 µg/m³	254.1 - 354.0 µg/m³
Very Unhealthy	0.106 - 0.200 ppm	125.5 - 225.4 µg/m³	354.1 - 424.0 µg/m³
Hazardous	Above 0.201 ppm	Above 225.5 µg/m³	Above 424.1 µg/m³
	Based on an 8-hour average.	Based on a 24-hour average.	Based on a 24-hour average.

What Can I Do?

Last Updated: July 24, 2026 9:00 AM
(Data Not Quality Assured)

What Can I Do?

Historical Data

Media

Phone App

Last Updated: July 24, 2026 9:00 AM(Data Not Quality Assured)

What Can I Do?

Historical Data

Media

Phone App

Last Updated: July 24, 2026 9:00 AM
(Data Not Quality Assured)