Polychlorinated biphenyls (PCBs) are toxic1 and carcinogenic2 compounds that contaminate nearly every ecosystem of our planet." While the use of PCBs has been curtailed? global contamination is expected to be a long-term problems because of the slow rate of oxidative metabolism of some congenersh and the slow degradation of PCBs by natural processes.', 8 For these reasons, studies of the metabolism and toxicity of ...
