http://articles.mercola.com/sites/articles/archive/2003/08/02/pcbs-salmon.aspxFarmed salmon, which is being eaten in increasing amounts by millions of Americans, were found to contain high levels of dangerous PCBs. The study found concentrations of PCBs some 16 times higher than those of wild, ocean-fished salmon. PCBs, an industrialenCommunityServer 2008.5 SP1 (Build: 31106.3070)