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Legend (ORD/ROE_Radon)

Radon Data (0)
Zone 1: Counties with predicted average indoor radon screening levels greater than 4 pCi/L Zone 1: Counties with predicted average indoor radon screening levels greater than 4 pCi/L
Zone 2: Counties with predicted average indoor radon screening levels from 2 to 4 pCi/L Zone 2: Counties with predicted average indoor radon screening levels from 2 to 4 pCi/L
Zone 3: Counties with predicted average indoor radon screening levels less than 2 pCi/L Zone 3: Counties with predicted average indoor radon screening levels less than 2 pCi/L