PFAS in Lake Superior: new fish data sheds light on long-term trends
A recent analysis of lake trout and walleye from the EPA’s Duluth laboratory reveals a rare environmental bright spot: PFAS levels in Great Lakes fish have declined significantly since the late 2000s. While Lake Superior can take almost two centuries to ‘flush,’ this study suggests the biological food web is responding much faster to industrial phase-outs than previously thought.
