Department of Environmental Quality
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Forecast   Current   Trends

A quick glance of the current air pollution levels and meteorological values.

County Ozone 1-Hr Ozone 8-Hr PM 2.5 1-Hr PM 2.5 24-Hr Temperature Wind
Cache 0.05 ppm 0.051 ppm 2.1 µg/m3 4.1 µg/m3 56° F NE 7.1 mph
Carbon 0.051 ppm 0.054 ppm 2.7 µg/m3 3.8 µg/m3 48° F N 20.7 mph
Duchesne 0.054 ppm 0.052 ppm 1.5 µg/m3 3.8 µg/m3 49° F NW 7.0 mph
Davis 0.05 ppm 0.053 ppm 2 µg/m3 5.1 µg/m3 59° F NE 4.2 mph
Salt Lake 0.048 ppm 0.055 ppm 5.1 µg/m3 7.6 µg/m3 59° F SE 3.5 mph
Tooele 0.045 ppm 0.055 ppm 3.9 µg/m3 4.5 µg/m3 55° F NE 3.7 mph
Uintah 0.043 ppm 0.047 ppm 2.4 µg/m3 3.1 µg/m3 47° F N 4.7 mph
Wasatch 0.054 ppm 0.056 ppm 2.8 µg/m3 4.1 µg/m3 52° F NW 4.1 mph
Washington 0.048 ppm 0.050 ppm 4.6 µg/m3 4.8 µg/m3 70° F N 18.9 mph
Harrisville 0.053 ppm 0.055 ppm 2 µg/m3 3.4 µg/m3 58° F NE 8.0 mph
Lindon 0.053 ppm 0.056 ppm 2.8 µg/m3 5.6 µg/m3 57° F N 4.2 mph
Grand 0.058 ppm 0.055 ppm 4.1 µg/m3 5.9 µg/m3 64° F N 9.6 mph
Iron 0.048 ppm 0.051 ppm 4.3 µg/m3 5.9 µg/m3 56° F N 7.0 mph
Brigham City 0.052 ppm 0.053 ppm 2.9 µg/m3 3.3 µg/m3 57° F E 11.3 mph
 
Action Forecast
Unrestricted Action
Voluntary Action
Mandatory Action
Health Forecast
Air Quality Index (AQI) PM 2.5 Ozone
Good 0 - 9.0 µg/m3 0 - 0.054 ppm
Moderate 9.1 - 35.4 µg/m3 0.055 - 0.070 ppm
Unhealthy for Sensitive Groups 35.5 - 55.4 µg/m3 0.071 - 0.085 ppm
Unhealthy 55.5 - 125.4 µg/m3 0.086 - 0.105 ppm
Very Unhealthy 125.5 - 225.4 µg/m3 0.106 - 0.200 ppm
Hazardous Above 225.5 µg/m3 Above 0.201 ppm
Based on a 24-hour average. Based on an 8-hour average.