Environmental

A Kentucky residential buyer is concerned about radon. The EPA action level for radon is:

A2 pCi/L
B4 pCi/L✓ Correct
C6 pCi/L
D10 pCi/L

Explanation

The EPA recommends remediation when indoor radon levels reach or exceed 4 picocuries per liter (pCi/L). Kentucky has higher-than-average radon levels, making testing particularly important for residential properties.

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