PCBs levels continue to decline in Lake Michigan fish
from Appleton Post-Crescent
New research shows a continuing decline in PCB levels in key Lake Michigan sport fish more than 30 years after regulations on manufacture, use and disposal were put into place. Wisconsin Department of Natural Resources researchers Paul Rasmussen, Candy Schrank and Meghan Williams, in a paper published in the June 16 online edition of the Journal of Great Lakes Research, describe a statistical model based on fish samples collected from 1975 to 2010 that quantified how toxic polychlorinated biphenyls have diminished in chinook and coho salmon — two prized fish among sport anglers and home chefs.
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