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This map identifies areas where additional radon resistant construction features should be incorporated in new construction to reduce the likelihood of elevated radon levels in a new building. It does not reflect radon levels in existing structures. It should NOT be used for predicting indoor radon levels in buildings that have not been tested for radon. The only way to know if building has a radon problem is to test the building.

For more information on radon resistant construction:
• Contact the Department of Community Affairs, Codes and Standards Section
• Contact this Office
• See the Florida Standard for Radon Resistant Residential Construction.

More detailed radon protection zone information is available through the University of Florida Geoplan Center .