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

Back to Radon Zones in the United States




Radon zones
 Zone 3 (70 parishes)
 Zone 2 (0 parishes)
 Zone 1 (0 parishes)
  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)
Acadia Parish
Radon zone : 3

Allen Parish
Radon zone : 3

Ascension Parish
Radon zone : 3

Assumption Parish
Radon zone : 3

Avoyelles Parish
Radon zone : 3

Beauregard Parish
Radon zone : 3

Bienville Parish
Radon zone : 3

Bossier Parish
Radon zone : 3

Caddo Parish
Radon zone : 3

Calcasieu Parish
Radon zone : 3

Caldwell Parish
Radon zone : 3

Cameron Parish
Radon zone : 3

Catahoula Parish
Radon zone : 3

Claiborne Parish
Radon zone : 3

Concordia Parish
Radon zone : 3

De Soto Parish
Radon zone : 3


East Carroll Parish
Radon zone : 3

East Feliciana Parish
Radon zone : 3

Evangeline Parish
Radon zone : 3

Franklin Parish
Radon zone : 3

Grant Parish
Radon zone : 3

Iberia Parish
Radon zone : 3

Iberville Parish
Radon zone : 3

Jackson Parish
Radon zone : 3

Jefferson Parish
Radon zone : 3

Jefferson Davis Parish
Radon zone : 3

La Salle Parish
Radon zone : 3

Lafayette Parish
Radon zone : 3

Lafourche Parish
Radon zone : 3

Lincoln Parish
Radon zone : 3

Livingston Parish
Radon zone : 3

Madison Parish
Radon zone : 3

Morehouse Parish
Radon zone : 3

Natchitoches Parish
Radon zone : 3

Orleans Parish
Radon zone : 3

Ouachita Parish
Radon zone : 3

Plaquemines Parish
Radon zone : 3

Pointe Coupee Parish
Radon zone : 3

Rapides Parish
Radon zone : 3

Red River Parish
Radon zone : 3

Richland Parish
Radon zone : 3

Sabine Parish
Radon zone : 3

St. Bernard Parish
Radon zone : 3

St. Charles Parish
Radon zone : 3

St. Helena Parish
Radon zone : 3

St. James Parish
Radon zone : 3


St. Landry Parish
Radon zone : 3

St. Martin Parish
Radon zone : 3

St. Mary Parish
Radon zone : 3

St. Tammany Parish
Radon zone : 3

Tangipahoa Parish
Radon zone : 3

Tensas Parish
Radon zone : 3

Terrebonne Parish
Radon zone : 3

Union Parish
Radon zone : 3

Vermilion Parish
Radon zone : 3

Vernon Parish
Radon zone : 3

Washington Parish
Radon zone : 3

Webster Parish
Radon zone : 3


West Carroll Parish
Radon zone : 3

West Feliciana Parish
Radon zone : 3

Winn Parish
Radon zone : 3


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