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Map of Radon Zones in Tennessee based on Environmental Protection Agency (EPA) data

Back to Radon Zones in the United States




Radon zones
 Zone 3 (25 counties)
 Zone 2 (31 counties)
 Zone 1 (41 counties)
  Highest Potential: counties have a predicted average indoor radon screening level greater than 4 pCi/L (pico curies per liter) (red zones)
  Moderate Potential: counties have a predicted average indoor radon screening level between 2 and 4 pCi/L (orange zones)
  Low Potential: counties have a predicted average indoor radon screening level less than 2 pCi/L (yellow zones)
Anderson County
Radon zone : 1

Bedford County
Radon zone : 1

Benton County
Radon zone : 2

Bledsoe County
Radon zone : 3

Blount County
Radon zone : 1

Bradley County
Radon zone : 1

Campbell County
Radon zone : 3

Cannon County
Radon zone : 2

Carroll County
Radon zone : 3

Carter County
Radon zone : 2

Cheatham County
Radon zone : 2

Chester County
Radon zone : 2

Claiborne County
Radon zone : 1

Clay County
Radon zone : No data

Cocke County
Radon zone : 2

Coffee County
Radon zone : 2

Crockett County
Radon zone : 3

Cumberland County
Radon zone : 3

Davidson County
Radon zone : 1

DeKalb County
Radon zone : 2

Decatur County
Radon zone : 2

Dickson County
Radon zone : 2

Dyer County
Radon zone : 3

Fayette County
Radon zone : 3

Fentress County
Radon zone : 2

Franklin County
Radon zone : 3

Gibson County
Radon zone : 3

Giles County
Radon zone : 1

Grainger County
Radon zone : 1

Greene County
Radon zone : 1

Grundy County
Radon zone : 3

Hamblen County
Radon zone : 1

Hamilton County
Radon zone : 2

Hancock County
Radon zone : 1

Hardeman County
Radon zone : 3

Hardin County
Radon zone : 2

Hawkins County
Radon zone : 1

Haywood County
Radon zone : 3

Henderson County
Radon zone : 2

Henry County
Radon zone : 3

Hickman County
Radon zone : 1

Houston County
Radon zone : 2

Humphreys County
Radon zone : 1

Jackson County
Radon zone : 1

Jefferson County
Radon zone : 1

Johnson County
Radon zone : 2

Knox County
Radon zone : 1

Lake County
Radon zone : 3

Lauderdale County
Radon zone : 3

Lawrence County
Radon zone : 1

Lewis County
Radon zone : 1

Lincoln County
Radon zone : 1

Loudon County
Radon zone : 1

Macon County
Radon zone : 2

Madison County
Radon zone : 3

Marion County
Radon zone : 3

Marshall County
Radon zone : 1

Maury County
Radon zone : 1

McMinn County
Radon zone : 1

McNairy County
Radon zone : 2

Meigs County
Radon zone : 1

Monroe County
Radon zone : 1

Montgomery County
Radon zone : 2

Moore County
Radon zone : 1

Morgan County
Radon zone : 3

Obion County
Radon zone : 3

Overton County
Radon zone : 2

Perry County
Radon zone : 1

Pickett County
Radon zone : No data

Polk County
Radon zone : 2

Putnam County
Radon zone : 2

Rhea County
Radon zone : 3

Roane County
Radon zone : 1

Robertson County
Radon zone : 2

Rutherford County
Radon zone : 1

Scott County
Radon zone : 3

Sequatchie County
Radon zone : 3

Sevier County
Radon zone : 2

Shelby County
Radon zone : 3

Smith County
Radon zone : 1

Stewart County
Radon zone : 2

Sullivan County
Radon zone : 1

Sumner County
Radon zone : 2

Tipton County
Radon zone : 3

Trousdale County
Radon zone : 1

Unicoi County
Radon zone : 2

Union County
Radon zone : 1

Van Buren County
Radon zone : No data

Warren County
Radon zone : 2

Washington County
Radon zone : 1

Wayne County
Radon zone : 1

Weakley County
Radon zone : 3

White County
Radon zone : 2

Williamson County
Radon zone : 1

Wilson County
Radon zone : 1


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