Radon levels vary across the United States. The U.S. Environmental Protection Agency recommends that all homes be tested for radon regardless of geographic location because of the link between radon and lung cancer. The EPA also recommends:

• If you are buying a home or selling your home, have it tested for radon. You may purchase your own testing kit or hire a professional tester.
• For a new home, ask if radon-resistant construction features were used and if the home has been tested.
• Fix the home if the radon level is 4 picoCuries per liter (pCi/L) or higher.
• Radon levels less than 4 pCi/L still pose a risk, and in many cases, may be reduced.

Take steps to prevent device interference when conducting a radon test.
For more information on radon testing and buying or selling your home, go to: the EPA’s Radon and Real Estate page.