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
Individuals are asked to voluntarily not use solid fuel burning devices, reduce/stop open burning, and reduce vehicle use by consolidating trips. Salt Lake County prohibits burning solid fuel in fireplaces or wood burning stoves and bans outdoor fires (including bonfires, patio pits and charcoal grill fires) on days that the State of Utah designates as either mandatory or voluntary air action (no burn) days. Salt Lake County Health Regulation 35
Last Updated: November 12, 2026 1:00 AM
(Data Not Quality Assured)

graph

graph

graph

graph

graph

graph

graph
| 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. | |



