Look at what happened with PCBs… in much of the world, nothing. I was pretty shocked to discover quite recently that in the UK you are advised to eat two porti

Look at what happened with PCBs… in much of the world, nothing. I was pretty shocked to discover quite recently that in the UK you are advised to eat two portions of oily fish per week, for your health. But no more because of the levels of PCBs in the fish. The UK isn’t the only place with this problem and (for instance) the Bay Area is pretty contaminated as well. And PCBs were banned in the late 1970s/early 80s.