Radon Information Center

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What is Radon?

Radon is a naturally occurring, odorless, tasteless, colorless radioactive gas that causes lung cancer. Uranium in rock, soil, and water naturally decays and gives off radon. 5-10% of the homes in Wisconsin have radon levels above the US EPA guideline of 4 pCi/L for the year average on the main floor. Every region of Wisconsin has some homes with radon levels higher than this guideline.

Because radon is a gas, radon moves through soil and structures to the water below the ground surface and to the air above. Homes and buildings can trap air that has radon and cause a health concern.  Dust particles with radon can be breathed in; these radioactive particles cling to lung tissue and decay there. The lung damage caused can lead to lung cancer.


Who should test for Radon?

All homes should be tested for radon.


Regional Radon Information Centers

Wisconsin has 16 County Health Departments which serve as Regional Radon Information Centers for groups of counties.

Fond du Lac County acts as the East Central Radon Information Center, who responds to radon questions from residents of Fond du Lac, Outagamie, Sheboygan, and Winnebago Counties. Information about the health effects of radon, the benefits of radon testing, and radon mitigation is provided by this Radon Information Center. Radon screening kits, both short and long term, can be bought at the Fond du Lac County Health Department and other locations throughout the county.



Fond du Lac County Health Department is located at the City/County Government Center on the 3rd floor

Office Hours: 8:00am – 4:30pm Monday through Friday (except legal holdidays)
Phone: 920-929-3085
Fax: 920-929-3102
Email: Click here