After reading this review it shows that the redisugal or the left over of the DDT chemical stays in the tissues of polar bear. Hopefully the research will continue and we will know the longer term effect. Could these polar bears have ingested the DDT chemical from the fish?
Reference:
Dietz R, Riget FF, Sonne C et al. 2012 Three decades (1983-2010) of contaminant trends in East Greenland polar bears (Ursus maritimus). Part 1: Legacy organochlorine contaminants.Environment International. Ahead of print. doi: 10.1016/j.envint.2012.09.004.
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