Andrew is a post-doctoral researcher in North Carolina focused on population and conservation genetics in hydrothermal vent communities.
A while back I reviewed the many seafood guides and the various ways they rank seafood choices. They do share one thing in common, however, and that’s the special denotation of certain species as hazardous to human health because of toxin load. Specifically, high levels of mercury and PCBs as found by an Environmental Defense study.
First, kudos to EDF for making their data have immediate impact. Other studies of toxins in fish have sat around for literally decades before becoming part of the mainstream discourse about fisheries. But it does beg the question, what makes mercury and PCBs so important among the myriad toxins in our oceans and our seafood?
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