Polychlorinated biphenyls in preserved human umbilical cords.
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.
Institute of Environmental Studies, The University of Tokyo, Bunkyo, Tokyo 113-8656, Japan.
Takamitsu
T
Otake
Jun
J
Yoshinaga
Hideki
H
Imai
Yoshie
Y
Seki
Toru
T
Matsumura
D000328:Adult; D002648:Child; D004784:Environmental Monitoring / Q000379:methods / Q000706:statistics & numerical data; D004785:Environmental Pollutants / Q000032:analysis*; D006801:Humans; D007564:Japan; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D035781:Siblings; D013997:Time Factors; D014470:Umbilical Cord / Q000737:chemistry*
D004785:Environmental Pollutants; D011078:Polychlorinated Biphenyls