What's a Good Radon Level?

According to the EPA, the maximum “acceptable” level of radon is 4.0 pCi/L, but even that level is not “safe”, per se. The EPA strongly recommends you consider radon mitigation between levels 2.0 and 4.0.

Is 2.4 a safe radon level?

Levels of 4 pCi/L or higher are considered hazardous. Radon levels less than 4 pCi/L still pose a risk and in many cases can be reduced, although it is difficult to reduce levels below 2 pCi/L.

What are normal radon levels?

The International Commission on Radiation Protection recommends that any radon exposure should be reduced to as low as reasonably achievable in the range of 100-300 Bq/m3. The World Health Organization recommends a national reference level of 100 Bq/m3.