Trout season last saturday opened in parts of Pennsylvania and perhaps one day mercury, pcb, and other pollutants won't have contaminated our fish so that Pennsylvania must warn anglers about eating fish. But that great day is not yet here so the Commonwealth has a public health advisory in effect.
Before you eat fish caught in Pennsylvania, see: www.fishandboat.com/fishpub/summary/sumconsumption.pdf.
And where does the mercury come from? Old coal fired power plants operating without mercury controls in America and around the world. Such plants must clean up, switch to natural gas or close.
Natural gas has no mercury and is one way to get the mercury out of our fish and ourselves.