Radon in Iowa

Radon is an invisible, tasteless, odorless, radioactive gas that is naturally produced by radium and uranium in the soil. Radon becomes harmful when it becomes trapped and concentrated in the air. For example, when it leaks into a basement through a crack in the foundation or a space around a pipe.

Radon exposure is the leading cause of lung cancer among non-smokers.

Lung cancer caused by radon exposure results in 21,000 deaths per year, including 400 deaths annually in Iowa.

Iowa has the highest average radon levels of any state. 71.6% of homes measure at or above the EPA’s action level of 4 picocuries per liter (pCi/L). In fact, the average radon level in Iowa homes is 8.5 pCi/L. Compare that with an overall United States average of 1.3 pCi/L.

Testing for radon is easy, and mitigating high radon levels is more affordable than the cost of lung cancer.

Order a Radon Test Kit

Order a radon test kit from the American Lung Association or call the Iowa Radon Hotline at 1-800-383-5992.

If your home’s levels are at or above 4 pCi/L, contact a Radon Mitigation Specialist certified by the State of Iowa. The Iowa Department of Health and Human Services regulates this certification and has an updated list of certified Radon Mitigation Specialists here.

If you’d like to learn more about the Iowa Cancer Consortium, including our Radon Workgroup, please email [email protected].



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