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Radon in Mississippi

Overview & Radon Maps

Mississippi has numerous counties with moderate to high radon levels. Because radon levels have the potential to be high nearly everywhere in the world, the International Radon Council recommends testing your home for radon no matter where you live. However, residents who live in high radon zone areas need to be particularly deliberate in testing their homes.

State of Mississippi Public Health Radon Page

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Mississippi Radon Map
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Zone 1

Average indoor radon level potential is likely to be 4.0 pCi/L or greater.

Zone 2

Average indoor radon level potential is likely to be between 2.0 to 4.0 pCi/L.

Zone 3

Average indoor radon level potential is likely to be less than 2.0 pCi/L.

When is Mitigation Necessary?

World Health Organization (WHO)
2.7 pCi/L or Greater

The World Health Organization recommends that buildings with radon levels of 2.7 pCi/L or greater be mitigated.

U.S. Environmental Protection Agency (EPA)
4.0 pCi/L or Greater

The Environmental Protection Agency recommends that buildings with radon levels of 4.0 pCi/L or higher be mitigated. For buildings with radon levels greater than 2.0 but less than 4.0 pCi/L, the EPA recommends considering mitigation.

Mississippi Radon Professionals

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