PCBs PCBs: Polychlorinated Biphenyls Polychlorinated biphenyls atomic number 18 a family of man-made chemical substances that submit two century and nine individual compounds with varying toxicity. some(prenominal) different combinations atomic number 18 possible. In chemical terminology, ?phenyl? denotes a ring structure of sixsome carbon atoms connect to something else; ?biphenyl? results when two such rings are attached to apiece 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 purlieu and may cause health hazards for humans. Although PCBs are no long manufactured, human exposure still occurs. Many older transformers and capacito...If you deprivation to get a full essay, order it on our website:
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