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About Radon Levels in Cass County

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

The average indoor radon levels of Cass County, as determined by radon test results from Air Chek, is 3.1 pCi/L

Local News

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


State Radon Officer

Mr. Leslie E. Smith, III
(517) 388-6913
Michigan Department of Environment, Great Lakes, and Energy
815 Filley Street
Lansing MI, 48906

Radon Resources