Find Radon Testers in Big Rock, Illinois
1 certified radon professional found near Big Rock.
Radon Risk Level
EPA data for Big Rock area
Average indoor level5.1 pCi/L
0EPA action level: 4 pCi/L10+
High radon state — northern and central IL especially elevated.
41% of homesin this state test above the EPA action level (4 pCi/L).
The EPA recommends all homes in high-radon states be tested regardless of construction type.
