Environmental
Radon is a naturally occurring radioactive gas that poses a health risk when it accumulates indoors. What is the EPA's recommended action level for radon?
A2 pCi/L
B4 pCi/L✓ Correct
C8 pCi/L
D10 pCi/L
Explanation
The EPA recommends taking action to reduce radon levels when indoor concentrations reach or exceed 4 picocuries per liter (pCi/L). Iowa has one of the highest percentages of homes with elevated radon levels in the United States.
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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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