polychlorinated biphenyl

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Related to Polychlorobiphenyl: Pcbs, Aroclor

polychlorinated biphenyl

or

PCB,

any of a group of organic compounds originally widely used in industrial processes but later found to be dangerous environmental pollutants. Polychlorinated biphenyl is a fat-soluble, water-insoluble hydrocarbon containing chlorine. It is extremely stable, withstanding temperatures of up to 1,600°F; (870°C;), is fire-resistant, and has been used as a heat-transfer and insulating fluid in cooling systems and electrical equipment; it has also been used in sealants, rubber, paints, plastics, printing ink, and insecticides. The chemical has entered the environment largely as a pollutant from equipment leaks, the weathering of many materials that contain PCB, and through interaction with food products. PCBs are not readily biodegradable. Production has been banned in several industrialized countries; the United States stopped producing PCBs in 1977.

polychlorinated biphenyl

[¦päl·i′klȯr·ə‚nād·əd bī′fen·əl]
(organic chemistry)
Any member of the group of chlorinated isomers of biphenyl. Abbreviated PCB.
References in periodicals archive ?
Aroclor 1254, which consists of a mixture of polychlorobiphenyls (PCBs), induces rat CYPs 1A1/2, 2B1/2 (roughly corresponding to 2B6 in humans) and 2C6 (2C8/9 in humans) (Ku et al., 2007).
Guarnieri, "Selected polychlorobiphenyls congeners bind to estrogen receptor alpha in human umbilical vascular endothelial (HUVE) cells modulating angiogenesis," Toxicology, vol.
[10] analysed daily fluxes of polychlorobiphenyls (PCBs), hexachlorobenzene (HCB), polychlorinated dibenzop-dioxins, and dibenzofurans (PCDD/Fs) in bulk depositions distributed in different sites of the Venice Lagoon, with the aim of investigating the spatial distribution of organic compounds and the impact of the industrial site.
Chevreuil, "Polycyclic aromatic hydrocarbons and polychlorobiphenyls in wastewaters and sewage sludges from the Paris area (France)," Environmental Research, vol.
Fish samples were submitted to the California Animal Health and Food Safety Laboratory System, Davis Laboratory, University of California, Davis (CA, USA) for metals, organochlorine insecticide, and polychlorobiphenyls analysis (Table 1).
Ships registered in the EU account for 17% of global tonnage and some 90% of large EU merchant ships end up being dismantled on beaches in South-East Asia (India, Bangladesh and Pakistan) in facilities that do not meet the environmental protection and safety standards required to manage the hazardous materials found in end-of-life ships, such as asbestos, polychlorobiphenyls (PCBs), tributyltin and sludge oil.
The occurrence of metals, alkylphenol and alkylphenol ethoxylates (APEs), Polychlorobiphenyls (PCBs), and polynuclear aromatic hydrocarbons (PAHs), has been documented in different fish species (carp, brown bullhead), water, and sediment from the Cuyahoga River (Baumann and others 1991; Smith and others 1994; Lesko and others 1996; Lin and others 2001; Rice and others 2003; Yang and others 2003).
Among these toxic chemicals is a class of compounds called polychlorobiphenyls (PCBs).
Wang, "A simplified procedure for the determination of organochlorine pesticides and polychlorobiphenyls in edible vegetable oils," Food Chemistry, vol.
Blood pressure in relation to contamination by polychlorobiphenyls and organochlorine pesticides: results from a population-based study in the Canary Islands (Spain).
Dry deposition of organic micropollutants (polycyclic aromatic hydrocarbons (PAHs), polychlorobiphenyls (PCBs), polybromodiphenyl ethers (PBDEs), and dibenzofurans) dominates atmospheric deposition