Environmental
The EPA recommends mitigation of radon in a home when levels reach or exceed:
A2 pCi/L
B4 pCi/L✓ Correct
C6 pCi/L
D10 pCi/L
Explanation
The EPA recommends taking corrective action to reduce radon levels when they are 4 picocuries per liter (pCi/L) or higher. Levels between 2-4 pCi/L should be considered for mitigation as well.
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