Be cynical if you want, but the bottom line as I see it is that both farmed fish and free-swimming salmon contain measureable levels of this crap, and so even if the funding of the study can be questioned, the study is still worrisome for those of us who eat salmon two or more times a week. Note that southeast Alaska chinook had levels triggering the EPA advisory, although not the less stringent FDA action level. I'm not going to quit eating free-swimming salmon, but I never have and never will eat farmed salmon. Dave and Plunker are right, we need to fight for more stringent laws that restrict the release of toxins into the environment. On that note I might add that other studies show levels of PCBs, furans, dioxin, etc. have gone down markedly in the last 20 years, so we're on the right track. Also, from everything I've read these pollutants concentrate in the skin and most fatty tissues of the fish. That latter would the brown tissue between the skin and flesh, concentrated mostly along the lateral line.