Polychlorinated Biphenyls (PCBs) Brief Introduction - The ...

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PCBs in Two Groups: Higher Chlorinated Biphenyls Higher chlorinated biphenyls, traditionally stabile, food chain PCBs, and receptor ligands, inducers of drug-metabolism and promoters of hepatocarcinogenesis. PCBs are considered food chain contaminants – body burdens increase with age.
Episodic or Airborne PCBs Lower Chlorinated Biphenyls PCBs may be divided into lower chlorinated biphenyls –fewer chlorines, more susceptible to environmental breakdown and biologic attack, more volatile = substrates for metabolism. (Episodic PCBs)
Page 1 and 2: Polychlorinated Biphenyls (PCBs) Br
Page 3 and 4: Dirty Dozen Structures (1): Cyclodi
Page 5: F 3 C F 2 C F 2 C C F 2 F 2 C C F 2
Page 8 and 9: Terminology • Bioconcentration -
Page 10 and 11: PCBs Production •PCBs were commer
Page 12 and 13: Biphenyl 3 2 2' 3' 4 4' 5 6 6' 5'
Page 14 and 15: PCBs in Transformers http://www.tdh
Page 18 and 19: Physical Properties Physical Chemic
Page 20 and 21: Levels of PCBs and PBDEs

Polychlorinated Biphenyls (PCBs) Brief Introduction - The ...

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