PCBs PCBs: Polychlorinated Biphenyls Polychlorinated biphenyls atomic number 18 a family of man-made chemical substances that arrest two century and nine individual compounds with varying toxicity. more different combinations atomic number 18 possible. In chemical terminology, ?phenyl? denotes a ring structure of sixsome carbon atoms devoted to something else; ?biphenyl? results when two such rings are attached to each other. Polychlorinated biphenyl (PCB) is any molecule having multiple atomic number 17 atoms attached to the carbon atoms of a biphenyl nucleus. Chlorine atoms can be placed at any or all of x available sites.
PCB?s have been used widely as coolants and lubricants in transformers, capacitors, and other electrical equipment. The manufacture of PCBs stopped in the United States in October 1977 because of evidence that PCBs accumulate in the contact and may cause health hazards for humans. Although PCBs are no long manufactured, human exposure still occurs. Many older transformers and capacito...If you beggary to get a full essay, order it on our website:
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