North Carolina Radon Program

What is Radon?

Radon is the leading environmental cause of lung cancer in the United States of America, second only to smoking tobacco.

Radon is a colorless, odorless, tasteless, and chemically inert radioactive gas. It is formed by the natural radioactive decay of uranium in rock, soil, and water. It can be found in all 50 states. Testing for it is the only way of telling how much radon is present.

North Carolina Radiation Protection Section

5505 Creedmoor Rd, Suite 100, Raleigh, NC 27612

1645 MSC, Raleigh NC 27699-1645

NOTE:  Information provided in this website has been provided, in part, by the National Radon Program Services; a Cooperative Agreement between the US EPA and Kansas State University; the U.S. Environmental Protection Agency; and the Centers for Disease Control and Prevention.

The NC Radon Program received funds from the U.S. EPA to give away 3,000 short-term radon test kits beginning in January 2021 - one test kit per household.  Click here to order one free radon test kit.

When this supply of free kits have been exhausted, you may order a test kit at