Environmental

Polychlorinated biphenyls (PCBs) found in Michigan older buildings are associated with which building component?

ATreated lumber framing
BElectrical transformers and capacitors and some older caulking✓ Correct
CVinyl floor tiles only
DAluminum wiring

Explanation

PCBs were commonly used in electrical equipment (transformers, capacitors) and in some building materials including caulking used in schools and commercial buildings constructed before the late 1970s.

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