PCB residues in mammals: A review

Abstract
This article provides a comprehensive review of the results of analytical studies on PCB residues in mammals in the wild, both in the terrestrial and the marine environments. The data are presented predominantly in terms of total PCBs although some congener‐specific studies are also reported. In addition, this report addresses possible geographical and temporal patterns in the data. One conclusion is that while PCBs can be found everywhere, the lowest residue levels are found in mammals in the Antarctic and the highest in hot spots in the Northern hemisphere; e.g. the Baltic Sea. Time trends are not as clear although it appears that residue levels in mammals have been decreasing during the past 10–15 years. The results of future studies can be compared with the data presented here to ascertain if this trend is real and continuing.

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