Environmental

What are 'polychlorinated biphenyls' (PCBs) and why are they relevant to Delaware real estate?

AA natural gas compound found near natural gas lines; relevant for safety
BToxic industrial chemicals once used in electrical equipment and paints that persist in the environment and create significant cleanup liability✓ Correct
CA naturally occurring mineral in Delaware soils
DAir quality pollutants regulated only in industrial settings

Explanation

PCBs are toxic, persistent industrial chemicals (formerly used in transformers, capacitors, and building materials). Their cleanup is highly regulated under TSCA, and their presence creates significant environmental liability in real estate.

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