BPI HHP Practice Questions - BPI Healthy Housing Principles Certificate Of Knowledge Exam

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What is the EPA recommended action level for radon in indoor air at which homeowners should take steps to mitigate exposure?

0.4 pCi/L 2.0 pCi/L 4.0 pCi/L 10.0 pCi/L

Correct Answer:

4.0 pCi/L

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