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About Radon Levels in Park County

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

The average indoor radon levels of Park County, as determined by radon test results from Air Chek, is 7 pCi/L

Local News

Radon Risk Chart for Park 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 Park County may be available through this website.


State Radon Officer

John Podolinsky
(800) 546-0483
(406) 841-5230
MT Department of Environmental Quality
PO Box 20091
Helena MT, 59620