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polychlorinated biphenyl
(redirected from Chlorinated biphenyls)

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polychlorinated biphenyl

Any of a group of chlorinated isomers of biphenyl (C6H5)2. They are dangerous industrial chemicals, valuable for their fire-resistant qualities. They constitute an environmental hazard because of their persistent toxicity. Since 1973 their use had been limited by international agreement. In December 2000, 122 nations agreed a treaty to ban the toxic chemicals known as persistent organic polluters (POPs), which include PCBs, although they are unlikely to be totally eliminated until about 2025.



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? Mentioned in ? References in periodicals archive
 
They comprise mixtures of distinct chlorinated biphenyls referred to as congeners.
Levels of Polychlorinated Biphenyls (PCBs) in Fish: The Influence on ... by Bisesi, Michael S. / Journal of Environmental Health
Comparative study on formation of hydroxy and sulfur-containing metabolites from different chlorinated biphenyls with 2,5-substitution in rats.
Polychlorinated biphenyls disturb differentiation of normal human ... by Abel, Josef / Environmental Health Perspectives
Determination of chlorinated biphenyls, chlorinated dibenzodioxins, and chlorinated dibenzofurans by GC-MS.
The relationship between levels of PCBs and pesticides in human hair ... by Hauser, Russ / Environmental Health Perspectives
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