Environment and Conservation has joined forces with the American Lung Association, the Environmental Protection Agency, the Tennessee Department of Health, and various local and county health departments with an outreach program to raise awareness about this health risk and the importance of testing.

“Testing is such a smart and vital step in protecting your home environment,” said Fyke. “I encourage all Tennesseans to take action in protecting the health of loved ones from the dangers of exposure to radon."

Radon is a naturally occurring gas that can seep into homes through cracks and openings in their foundations. It cannot be seen, tasted or smelled, but in concentrated levels, radon can pose a threat to human health. The EPA estimates that approximately 70 percent of Tennessee’s population lives in high risk or moderate risk radon areas. According to the EPA, radon is the number one cause of lung cancer among non-smokers and is the second leading cause of lung cancer in the United States.

While radon poses a serious threat to our community’s health, radon test kits are the first step toward a straightforward solution and are easy to use. In Tennessee, radon test kits can be purchased at most local hardware and home improvement stores, or through the American Lung Association.

The best time to test is during consistently cold weather, usually from October to March. This is the time of year when doors and windows are shut, so test results are more representative of in-home exposure. Radon problems can be fixed by qualified contractors for a cost comparable to that of many common household repairs, such as painting or installing a new water heater.

“Nationally, about 6 percent of homes surveyed had elevated levels of radon,” said Amy Little of the Tennessee Radon Program. “In contrast, 16 percent of Tennessee homes surveyed had elevated levels and in some counties, 33 to 75 percent of homes being tested have elevated levels of radon.”

Radon is measured in picocuries per liter of air (pCi/L), and the EPA and Centers for Disease Control and Prevention recommend homes with radon levels at 4 pCi/L or higher should be fixed. EPA also recommends that Americans consider fixing their homes for radon levels between 2 pCi/L and 4 pCi/L.

For more information about the Tennessee Radon Program, please visit Environment and Conservation’s Web site at www.tn.gov/environment/ea/radon or contact the department’s Radon Program at 1-800-232-1139 or This e-mail address is being protected from spambots. You need JavaScript enabled to view it .