Environmental
An Iowa home has been tested and found to have a radon level of 5.0 pCi/L. The EPA recommends mitigation when levels exceed:
A1.0 pCi/L
B2.0 pCi/L
C4.0 pCi/L✓ Correct
D10.0 pCi/L
Explanation
The EPA recommends radon mitigation for homes with levels at or above 4.0 pCi/L. Iowa frequently has elevated radon levels, and radon testing is strongly encouraged in residential transactions.
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