LAM environmental research staff conduct field studies to understand natural and mining influences on groundwater, streams, rivers, lakes, and wetlands across northeastern Minnesota.
Sulfide minerals in mine wastes are a source of sulfate and metal loading to surrounding watersheds. As dissolved sulfur and metal species move through the environment, various chemical and biological processes can occur.
The LAM environmental research program has partnered with industry, state, and academic researchers to investigate the potential relationship between sulfate loading from taconite mining areas and the production of methylmercury in the St. Louis River Watershed.
DNR staff measuring stream flow
DNR staff collecting stream water samples for chemical analysis
Watershed field studies research documents
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