Salt Lake County—Current Conditions
September 2, 2014 12:00 PM (updated hourly)
PM 2.55.9 µg/m3
WindNE 2.3 mph
As with temperature, air pollution varies throughout the day.
Web cam courtesy of the
University of Utah / TimeScience
Smoke from wild fires could cause high concentrations of particulates in populated areas. If smoke becomes thick, persons with existing heart or respiratory ailments should reduce physical exertion and outdoor activity.
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.|
What Can I Do?