Question

Production of PCBs was banned in the United States in 1979.
What was the main use of PCBs that led to their release into the environment?

• A. Use as a fuel additive
• B. Use as a pesticide
• C. Use in electrical equipment
• D. Use as an herbicide
• E. Use in warfare

Answer 1

The correct option is A Use as a fuel additive

PCBs, or polychlorinated biphenyls, are a group of toxic, man-made chemicals produced by the chlorination of Biphenyl. They range from light, oily fluid to heavy, greasy or waxy textures.

In $1979$, the EPA banned the manufacture of PCBs because they were discovered to be highly toxic and potent carcinogen.