Radon Map

The radon map used by the Environmental Protection Agency (E.P.A.) was developed using five factors to determine radon potential within a local or regional area of the U.S.

  1. indoor radon measurements;
  2. geology;
  3. aerial radioactivity;
  4. soil permeability; and
  5. foundation type.

The E.P.A. states the purpose of this map is to assist National, State, and local organizations to target their resources and to implement radon-resistant building codes. This map is not intended to be used to determine if a home in a given zone should be tested for radon. Homes with elevated levels of radon have been found in all three zones.

radon-map

radon-zones

Note: This map should not be used for testing purposes for real estate transactions.

These zones only indicate a potential for radon gas in your home and does not mean it may be present. For instance; neighborhoods which may be built upon ground which has rock formations underneath may be more likely to have radon gas than not since radon is a by-product of degrading rock.

The E.P.A. suggest that all homes should be tested at some time regardless of location. Most states have a designated radon contact and either offer free or discounted tests kits to the public. Some states require that you hire a contractor on your own to determine your home radon risk. In addition, some home improvement centers may offer do-it-yourself radon test kits.

For more information, please download "A Citizen's Guide To Radon" published by the E.P.A.

Go to Home page from Radon Map


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