This document contains information on radon potential variations within counties. The EPA also recommends that this map be supplemented with any available local data in order to further …

Nov 13, 2025 · Access to individual EPA state map of radon zones and document for each state that provides background information concerning the development of the Map of Radon Zones.

If you cannot find a radon test kit in your community, you can order a low cost test kit from the National Radon Hotline by calling 1-800-SOS-RADON [1-800-767-7236].

Aug 13, 2025 · Radon test kits are available from several sources. Free test kits are sometimes available from local or county health departments, or from state radon programs.

Dec 8, 2025 · Find local information related to radon, including your state radon program, with contact information, EPA Regional contacts and a state-specific map.

Sep 22, 2025 · The Map of Radon Zones was developed in 1993 to identify areas of the U.S. with the potential for elevated indoor radon levels. The map is intended to help governments and …

Any home, school or workplace may have a radon problem, regardless of whether it is new or old, well-sealed or drafty, or with or without a basement. Nearly one out of every 15 homes in the …

Radon is a radioactive gas that has been found in homes all over the United States. It comes from the natural breakdown of uranium in soil, rock, and water and gets into the air you breathe.

Nov 13, 2025 · Radon is a naturally occurring radioactive gas that can cause lung cancer. You can’t see or smell radon. Testing is the only way to know your level of exposure. Radon can …

Jan 23, 2025 · Contact your state radon program for information on how to obtain a test kit from a radon measurement professional. Some states also offer free or discounted test kits to the public.