PCBs Found In High Concentrations in Norwegian Seals   Leave a comment

Harbor Seal (Phoca vitulina)A recent study found high levels of polychlorinated biphenyl (PCB) contamination in seals residing off the coast of Norway. Researchers investigated 82 harbour seals that had either died or were dying from the 1988 morbilli virus outbreak. Analysis revealed both DDT and mercury presence in the seals’ blubber and livers; however, PCBs were far more concentrated. “Of the chlorinated hydrocarbons, the highest concentrations were found of PCBs, which were 2-4 times higher than the total DDT concentrations” (Mendeley.com).

More and more frequently, we are learning that our global animal populations have been contaminated with man-made toxins. Although the study did not investigate the pollutants’ role in the animals’ deaths, we  know enough about these harmful chemicals to infer that they are not serving any beneficial roles. To read more about this research, click here.

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Posted November 6, 2010 by lymphomactivist in Uncategorized

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