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South Dakota Informs Public about Radon through Education

by Margaret Henderson

The radon potential in South Dakota in more than half of the counties of the state corresponds with USEPA Zone 1 designation where expected values exceed 4 pCi/L. The remainder of the state is categorized as Zone 2 where levels are expected to be between 2 – 4 pCi/L.

With potential for radon exposure throughout the state, the South Dakota Department of Environment and Natural Resources Indoor Radon Program provides educational materials and information for the public to encourage testing and mitigation.

The department’s website presents the “National Radon Test” to give some basic understanding of radon to the public. https://denr.sd.gov/des/aq/radontest.aspx

Radon potential by county is shown in a map that identifies counties and their corresponding potential levels, based on data collected from the 1980s to the present. https://denr.sd.gov/des/aq/aarad.aspx#SouthDakotaLevels

The data are correlated to the geologic map of the US, showing how South Dakota radon potentials correspond to geologic formations. https://denr.sd.gov/des/aq/aarad.aspx#UnitedStatesLevels

Mitigation techniques are explained as are the particulars about testing for radon.

For more information, contact:

Barbara Regynski

South Dakota Department of Environment and Natural Resources

Joe Foss Building 523 E Capitol Ave Pierre SD 57501 South Dakota Radon Information Line 1-800-GET-DENR (1-800-438-3367)

https://denr.sd.gov/des/aq/aarad.aspx#MitigationofRadon