Radon Information Center

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East Central Radon Information Center 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 Health Department and other locations throughout the county.

Who should test for Radon?

All homes should be tested for radon.

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.

Regional Radon Information Centers


1. Waukesha
2. Waushara
3. Dane
4. Grant
5. Fond du Lac
6. Sauk
7. Marathon
8. Eau Claire
9. Dunn
10. Taylor
11. La Crosse
12. Watertown
13. Washington
14. Kenosha
15. Manitowoc
16. Polk

Wisconsin Radon Map

The 16 County Health Departments listed above act as Regional Radon Information Centers for the indicated areas. The toll-free number in Wisconsin which routes calls to the appropriate Regional Radon Information Center for consultation with certified radon experts is:

 Go to https://fyi.uwex.edu/healthyair/category/radon/ for more information on radon.


Location at 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