Environmental

Radon is a particular concern in Pennsylvania because:

APennsylvania has no radon testing requirements
BPennsylvania has some of the highest average radon levels in the nation due to underlying geology✓ Correct
CRadon is only present near industrial sites in Pittsburgh
DPennsylvania's climate prevents radon gas accumulation

Explanation

Pennsylvania consistently ranks among the states with the highest radon levels due to uranium-bearing granites and other rocks in the subsurface geology. The EPA recommends testing all homes and mitigating when levels exceed 4 pCi/L. Pennsylvania's Seller Disclosure covers radon.

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