Article: Production of PCBs banned, but we're still exposed to them

THE DEADLY LEGACY OF PCBS:

PCBs were chemicals that we made because we could. Manufactured from the waste products of the crude oil refining process and a range of chlorinated chemicals, these oily, syrupy liquids had a multitude of uses and have been described as being as near perfect as any industrial chemical can be.

PCBs conduct heat but not electricity, and they are not water soluble. As such, they proved indispensable as insulators, lubricants, and coolers for every type of machinery-even those that came into contact with human and animal foods. They were also mixed into plastics and rubbers, inks, paints, dyes, adhesives, and paper. Some were mixed in with pesticides and sprayed onto ...

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