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About Radon Levels in Washington County

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

The average indoor radon levels of Washington County, as determined by radon test results from Air Chek, is 8.9 pCi/L

Local News

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


State Radon Officer

Jim Lewis
(866) 703-3266
(410) 767-6500
MD Dept of Health
201 W preston St
Baltimore MD, 21201-2399