Environmental
Radon is a significant concern in Pennsylvania because:
APennsylvania is the only state in the nation where radon occurs naturally in soil
BPennsylvania has some of the highest radon levels in the country due to underlying uranium-bearing geology✓ Correct
CPennsylvania law mandates radon remediation before any residential property can be listed for sale
DRadon only affects properties with full basements in eastern Pennsylvania counties
Explanation
Pennsylvania consistently ranks among the states with the highest radon concentrations in the U.S., due to uranium-bearing rock formations including granite and limestone underlying much of the state. The EPA recommends mitigation when radon levels exceed 4 pCi/L. Pennsylvania's Seller's Property Disclosure Statement asks sellers about known radon test results. Radon testing is strongly recommended — particularly in southeastern and central Pennsylvania — as part of the buyer's home inspection process.
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