Radon is a cancer-causing natural radioactive gas that you can’t see, smell or taste. Its presence in our home can pose a danger to your family's health. Radon is the leading cause of lung cancer among non-smokers, and the second leading cause of lung cancer in America, claiming about 20,000 lives annually. 

Radon gas comes from the natural (radioactive) breakdown of uranium in soil, rock and water.  It is found in every part of the U.S., and can get into any type of building - homes, offices, and schools - and result in a high indoor radon level. The greatest exposure occurs at home, where most people spend most of their time.

Radon bottleRadon Legislation and Statutes

States have taken action to address the threat of radon to their constituents. Click the following links to see the legislation lawmakers have passed to actively address the concerns of radon in their states.

Radon Map

Radon is present everywhere in the United States. Levels of the gas differ from state to state, but it is particularly high in North Dakota and Iowa. The U.S. Environmental Protection Agency’s Map of Radon Zones shows the potential for elevated radon levels for each county in the United States.

Additional NCSL Radon Resources

Radon Resources

Note: NCSL provides links to other websites from time to time for information purposes only.  Providing these links does not necessarily indicate NCSL's support or endorsement of the site.

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