Environmental

A Mississippi commercial property is located in an area with high radon potential. The EPA's recommended action level for radon in a building is:

A4 picocuries per liter (pCi/L) or higher✓ Correct
B1 pCi/L
C10 pCi/L
DAny detectable level

Explanation

EPA recommends that radon levels at or above 4 pCi/L be mitigated. Levels between 2–4 pCi/L are a gray area where mitigation is 'strongly recommended.' Radon is the second leading cause of lung cancer in the U.S. Mississippi's radon levels are generally lower than the national average but still warrant testing.

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