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Salt Lake County—Current Conditions

September 20, 2014 11:00 PM (updated hourly)

PM 2.5

9.3 µg/m3


0.03 ppm


71° F


SE 2.9 mph

As with temperature, air pollution varies throughout the day.

Web cam courtesy of the
University of Utah / TimeScience


Smoke from wild fires in California could cause high concentrations of particulates in populated areas locally. 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

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.

Phone App

Look for the Utah Air phone app on Android and iPhone stores.