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About Radon Levels in Knox County

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

The average indoor radon levels of Knox County, as determined by radon test results from Air Chek, is 3.9 pCi/L

Local News

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


State Radon Officer

Jan Compton
(800) 232-1139
(423) 854-5417
TN Radon Program
401 Church Street, 8th floor
Nashville TN, 37243