Environmental

Massachusetts regulations require disclosure of a 'radon in air' test result to a buyer when the level exceeds:

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

Explanation

The EPA and Massachusetts recommend that homeowners take action when indoor radon levels exceed 4 picocuries per liter (pCi/L). While Massachusetts does not have a mandatory radon testing law for real estate transactions, disclosure of known elevated radon levels is a material fact obligation.

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