Environmental

The EPA recommends mitigating radon levels in a home when test results show radon concentrations at or above:

A2 pCi/L
B4 pCi/L✓ Correct
C8 pCi/L
D10 pCi/L

Explanation

The EPA recommends taking action to reduce radon levels when results are at or above 4 picocuries per liter (pCi/L). The EPA also suggests considering mitigation for levels between 2 and 4 pCi/L.

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