Salt Lake County—Current Conditions
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March 3, 2015 3:00 AM (updated hourly)
PM 2.54.9 µg/m3
WindNE 1.6 mph
As with temperature, air pollution varies throughout the day.
Web cam courtesy of the
University of Utah / TimeScience
Solid fuel-burning devices may be used, but visible emissions must meet air quality regulations (see R307-302-5).
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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