Hall A J, Duck C D, Law R J, Allchin C R, Wilson S, Eybator T
Sea Mammal Research Unit, Gatty Marine Laboratory, University of St. Andrews, St. Andrews, Fife KY16 8LB, UK.
Environ Pollut. 1999 Aug;106(2):203-12. doi: 10.1016/s0269-7491(99)00073-1.
Organochlorine contaminants (pesticides and individual polychlorinated biphenyl congeners, PCBs) were measured in Caspian (Phoca caspica) seal blubber and compared with concentrations in Harbour (Phoca vitulina) seal blubber. Concentrations of total dichlorodiphenyltrichloroethane (DDT) and its metabolites were significantly higher in Caspian seal than Harbour seal samples, whereas PCB congeners were significantly higher in Harbour than Caspian seals. Our finding suggests that Caspian seals are exposed to high levels of DDT pesticides. In contrast, PCBs are circulating in this population at much lower levels than in marine mammals from the North Sea.
对里海海豹（Phoca caspica）的脂肪组织中的有机氯污染物（农药和多氯联苯同系物，PCBs）进行了测量，并与港湾海豹（Phoca vitulina）脂肪组织中的浓度进行了比较。里海海豹样本中总滴滴涕（DDT）及其代谢物的浓度显著高于港湾海豹，而港湾海豹体内多氯联苯同系物的浓度显著高于里海海豹。我们的研究结果表明，里海海豹接触到了高水平的滴滴涕农药。相比之下，多氯联苯在该种群中的循环水平远低于北海的海洋哺乳动物。
