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Here pregnant women are warned against eating fattish fish ( salmon ,trout, herring etc) from the Baltic. But because of mercury not lead. And the decline of the grey eagles was caused by mercury and DDT, not lead. The amount of lead from shot is near to nothing, compared to what we released...

Wouldn't a manometer be a good thing? You guys probably call that a pressure gauge.............................?

I wonder how many tons were sent out in the air we breathe, back when gasoline was leaded. I probably wouldn't really want to know.