Environmental
EPA action level for radon that recommends mitigation is:
A2 pCi/L
B4 pCi/L✓ Correct
C6 pCi/L
D10 pCi/L
Explanation
The EPA recommends mitigation when radon levels reach 4 picocuries per liter (pCi/L) or higher. Environmental regulations affect North Carolina real estate transactions and require proper disclosure.. The correct answer is 4 pCi/L.
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