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About Radon Levels in Arapahoe County

The average national indoor radon level is 1.3 pCi/L. (FAQ: What is a picocurie?)

The average indoor radon levels of Arapahoe County, as determined by radon test results from Air Chek, is 4.7 pCi/L

Local News

Radon Risk Chart for Arapahoe County


    Results under 2 pCi/L

    Results between 2 and 3.9 pCi/L

    Results 4 pCi/L and above


Check Your Own Radon Levels!


Additional information about radon levels in Arapahoe County may be available through this website.


State Radon Officer

Chrystine Kelley
(800) 846-3986
(303) 692-3442
CO Dept of Public Health and Environment
4300 Cherry Creek Drive South
Denver CO, 80246