Air Quality

Outdoor Air Quality

Outdoor air quality monitoring sensors are present throughout Grand County. A map of the location of these sensors and their data can be found by visiting PurpleAir. PurpleAir sensors measure airborne particulate matter (PM). Particulate matter describes solid particles suspended in air; this includes dust, smoke, and other organic and inorganic particles. 

Indoor Air Quality

Indoor air quality pollutants include radon, asbestos, lead, carbon monoxide, secondhand smoke and several other types of pollutants


FREE Radon test kits are available at Grand County Public Health, please call 970-725-3288 or e-mail to obtain a test kit. 

Radon is a naturally occurring radioactive gas that comes from the breakdown of uranium in the soil. Radon has no color, odor, or taste. Radon is the second leading cause of lung cancer in the United States and half of Colorado homes have radon levels higher than the U.S. EPA recommended action level of 4 pCi/L. There are many pathways that radon can enter into your home putting those in your home at risk for possible radon exposure. For more information on radon visit CDPHE Testing and Mitigation your Home for Radon

For information on finding a certified radon mitigation company in Grand County visit CDPHE Find a Certified Radon Contractor.

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