Find Radon Testers in Marcus, Iowa
1 certified radon professional found near Marcus.
Radon Risk Level
EPA data for Marcus area
Average indoor level8.5 pCi/L
0EPA action level: 4 pCi/L10+
Very high radon state — highest average in the nation. Testing is critical.
71% 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.
