Find Radon Testers in Columbia, Maryland
1 certified radon professional found near Columbia.
Radon Risk Level
EPA data for Columbia area
Average indoor level4.4 pCi/L
0EPA action level: 4 pCi/L10+
High radon potential; western MD counties especially elevated.
35% 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.
