Is there mercury in Lake Erie fish?

Mercury concentrations in top predator fish are equal to or approaching the concentrations measured at the beginning of the monitoring program in the late 1970s. Following the change, mercury levels have been stable in lakes Huron and Ontario and appear to be increasing in lakes Superior and Erie.



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The water is drinkable and the amount of toxic chemicals has declined. “There's good news, but it is coupled with the sobering reality that we have significant problems that linger,” said Brian Smith, associate executive director of Citizens Campaign for the Environment.

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Lake Erie and Lake Michigan are ranked the third and fourth most polluted lakes in the United States, according to nature website AZ Animals.

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The pollution process was exacerbated by water flowing into the lake from various industrial cities. Detroit was home to factories that dumped acids, iron and oil wastes into the river that flowed into Lake Erie at its Western end. Runoffs from Cleveland farms carried wastes into the lake from its Southern end.

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Lake Erie and its tributaries are famous for good-sized game fish species such as walleye, bass, yellow perch, bluegill, crappie, and steelhead.

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