The campaign explains that they "randomly selected 41 grocery stores in California to purchase fresh and frozen samples of swordfish, ahi tuna or yellowfin tuna, and salmon," which they then submitted to laboratory analysis. Their findings include the startling fact that more than a third of the grocery store fish studied had levels of methylmercury in excess of the the FDA do-not-sell limit of 1 part per million, with swordfish being by far the worst offender. In fact, only 6 of the 32 swordfish samples analyzed came in below 1 part per million, and one fish, purchased at a Ralph's in Los Angeles, had 3 parts per million.
Full details on where each sample was purchased and how it fared during testing are available in Got Mercury?'s "Operation Safe Seafood" report [PDF], which also includes a list of recommended next steps for both legislators and individual consumers, as well as the link for a handy app that helps you calculate your mercury exposure.
Read the full story at GOOD.