Accession Number PB2013-108488
Title Mercury in Wetlands at the Glacial Ridge National Wildlife Refuge, Northwestern Minnesota, 2007-9.
Publication Date 2013
Media Count 26p
Personal Author M. E. Brigham T. K. Cowdery
Abstract The Glacial Ridge National Wildlife Refuge was established in 2004 on land in northwestern Minnesota that had previously undergone extensive wetland and prairie restorations. About 7,000 acres of drained wetlands were restored to their original hydrologic function and aquatic ecosystem. During 2007-9, the U.S. Geological Survey, in cooperation with the U.S. Fish and Wildlife Service and the Red Lake Watershed District, analyzed mercury concentrations in wetland water and sediment to evaluate the effect of wetland restoration on mercury methylation. The wetland waters sampled generally were of the calcium/magnesium bicarbonate type. Nitrogen in water was mostly in the form of dissolved-organic nitrogen, with very low dissolved-nitrate and dissolved-ammonia concentrations.
Keywords Aquatic ecosystems
Glacial Ridge National Wildlife Refuge
Water quality

Source Agency United States Fish and Wildlife Service
US Geological Survey
NTIS Subject Category 68D - Water Pollution & Control
48G - Hydrology & Limnology
57Y - Toxicology
Corporate Author Geological Survey, Reston, VA.
Document Type Technical report
Title Note Scientific investigations rept.
NTIS Issue Number 1318
Contract Number N/A

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