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PCBs or Polychlorinated Biphenyls are manmade chemicals that persist in the environment and bioaccumulate in animals and humans. PCBs were manufactured in the United States between 1950 and 1978, before their
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Document Date: 2013-02-20 14:29:05
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PCBs or Polychlorinated Biphenyls are manmade chemicals that persist in the environment and bioaccumulate in animals and humans. PCBs were manufactured in the United States between 1950 and 1978, before their