Environmental

PCBs (polychlorinated biphenyls) in real estate are associated with:

ARadon intrusion
BOld electrical transformers and equipment found in older commercial buildings✓ Correct
CAsbestos-containing floor tiles
DLead pipes

Explanation

PCBs were used in electrical transformers, capacitors, and other equipment. They are found in older commercial and industrial properties and are highly toxic persistent pollutants.

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