[Polychlorinated diphenyls (PCB) : industrial hygiene and environmental toxicology].


The industrialized countries have been producing, every year from 1929, thousands of tons of polychlorinated biphenyls (PCB). Although it was known from that period the toxic activity of PCB (chlorancne), only from 1966 their presence and persistence in the environment has been detected and their mechanism of bioconcentration studied. Systematic researches… (More)


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