Polychlorinated biphenyls in preserved human umbilical cords |
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Authors: | Otake Takamitsu Yoshinaga Jun Imai Hideki Seki Yoshie Matsumura Toru |
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Institution: | Institute of Environmental Studies, The University of Tokyo, Bunkyo, Tokyo 113-8656, Japan. |
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Abstract: | Congener-specific PCB analyses were carried out on preserved umbilical cord samples. Total PCB concentrations were higher in the umbilical cords of subjects born in the 1960s and 70s than in those born more recently. Total PCB concentrations in the cords from 3 groups of siblings showed no linear relationships between birth order and total PCB concentration. The congener and homologue compositions of PCBs in the umbilical cords of one group of siblings were similar to those of commercial PCB products. |
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