Environmental
The EPA recommends mitigating radon levels in a home when test results show radon concentrations at or above:
A2 pCi/L
B4 pCi/L✓ Correct
C8 pCi/L
D10 pCi/L
Explanation
The EPA recommends taking action to reduce radon levels when results are at or above 4 picocuries per liter (pCi/L). The EPA also suggests considering mitigation for levels between 2 and 4 pCi/L.
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Key Terms to Know
Zoning
Local government regulations that control land use by dividing areas into zones specifying permitted uses, building sizes, and densities.
VarianceOfficial permission to use land in a way that does not conform to the applicable zoning ordinance, granted by a zoning board when strict enforcement would cause undue hardship.
Eminent DomainThe power of government to take private property for public use, with the requirement to pay the owner just compensation.
Adverse PossessionA doctrine by which a person can gain legal title to another's land by openly, continuously, and adversely occupying it for a statutory period.
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