Salt Lake County—Current Conditions
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December 9, 2024 11:00 PM (updated hourly)
PM 2.5
2.1 µg/m3Ozone
0.015 ppmTemperature
31° FWind
E 1.2 mphAs with temperature, air pollution varies throughout the day.
Web cam courtesy of the
University of Utah / MesoWest
Explanation
The data displayed on this page represents the current air pollution levels and meteorological values, and is not quality assured. For quality assured data please visit https://www.epa.gov/outdoor-air-quality-data.
Particulate matter (PM), also known as particle pollution, is a complex mixture of extremely small dust and soot particles. For more information visit Air Pollutants: Particulate Matter.
Ozone (O3) is formed when hydrocarbons and nitrogen oxides chemically react in the presence of sunlight and heat. For more information visit Air Pollutants: Ozone.
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. |