Question

Why are PCBs - polychlorinated biphenyls - dangerous?

Answer 1

hey

PCBs have been used as coolants and lubricants in transformers, capacitors, and other electrical equipment because they don't burn easily and are good insulators. The manufacture of PCBs was stopped in the U.S. in 1977 because of evidence they build up in the environment and can causeharmful health effects.

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