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Research finds no improvement in mercury levels in Northern Wisconsin lakes

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Mike Simonson, Wisconsin Public Radio

An update to a map with fish mercury advisories in the Ceded Territories of Wisconsin, Michigan and Minnesota shows that not much has changed.


In all, 446 lakes have been tested in recent years by the tribes and Great Lakes Indian Fish and Wildlife Commission. GLIFWC environmental biologist Sara Moses said of those lakes, 324 have been color-coded with walleye eating advisories.

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