Salt Lake County—Current Conditions
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January 27, 2015 4:00 AM (updated hourly)
As with temperature, air pollution varies throughout the day.
Web cam courtesy of the
University of Utah / TimeScience
Solid fuel burning devices must not be used. Open burning may not occur; including fire pits, fire rings, and campfires. Reduce vehicle use by consolidating trips. Industry should optimize operating conditions to minimize air pollution emissions.
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 http://www.epa.gov/airdata/.
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.
|Air Quality Index (AQI)||PM 2.5||Ozone|
|Good||0 - 12.0 µg/m3||0 - 0.059 ppm|
|Moderate||12.1 - 35.4 µg/m3||0.06 - 0.075 ppm|
|Unhealthy for Sensitive Groups||35.5 - 55.4 µg/m3||0.076 - 0.095 ppm|
|Unhealthy||55.5 - 150.4 µg/m3||0.096 - 0.115 ppm|
|Very Unhealthy||150.5 - 250.4 µg/m3||0.116 - 0.374 ppm|
|Hazardous||Above 250.5 µg/m3||Above 0.375 ppm|
|Based on a 24-hour average.||Based on an 8-hour average.|
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