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2 полихлорированный бифенил
полихлорированный бифенил
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
polychlorinated biphenyl
PCBs are a family of chemical compounds which do not exist in nature but which are man-made. Commercial mixtures are clear, pale yellow liquids, manufactured by the replacement of hydrogen atoms on the biphenyl molecule by chlorine. Because of their physical properties, PCBs are commonly found in electrical equipment which requires dielectric fluid such as power transformers and capacitors, as well as in hydraulic machinery, vacuum pumps, compressors and heat-exchanger fluids. Other uses include: lubricants, fluorescent light ballasts, paints, glues, waxes, carbonless copy paper, inks including newspapers, dust-control agents for dirt roads, solvents for spreading insecticides, cutting oils. PCBs are stable compounds and although they are no longer manufactured they are extremely persistent and remain in huge quantities in the atmosphere and in landfill sites. They are not water-soluble and float on the surface of water where they are eaten by aquatic animals and so enter the food chain. PCBs are fat-soluble, and are therefore easy to take into the system, but difficult to excrete. (Source: PZ / PHC)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Русско-французский словарь нормативно-технической терминологии > полихлорированный бифенил
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3 распыление загрязняющих веществ
распыление загрязняющих веществ
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
pollutant dispersion
The spreading of pollutants from a point of release in air, soil and water. The dispersion of air pollutants is heavily influenced by how and where the pollutant is emitted, e.g., by continuous low-level versus accidental releases, multiple stacks versus a few, or the height of the stacks. The nature of the local terrain meteorology and the chemistry of the released material strongly influence the pattern of regional and, finally, global dispersion and transport.
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Русско-французский словарь нормативно-технической терминологии > распыление загрязняющих веществ
См. также в других словарях:
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spreading elm — paprastoji vinkšna statusas T sritis vardynas apibrėžtis Guobinių šeimos dekoratyvinis, medieninis augalas (Ulmus laevis), paplitęs Europoje ir vakarų Azijoje. atitikmenys: lot. Ulmus laevis angl. European white elm; fluttering elm; pedunculate… … Lithuanian dictionary (lietuvių žodynas)
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water elm — noun 1. large ornamental tree with graceful gradually spreading branches common in eastern North America • Syn: ↑American elm, ↑white elm, ↑rock elm, ↑Ulmus americana • Hypernyms: ↑elm, ↑elm tree … Useful english dictionary