Documents in the NTIS Technical Reports collection are the results of federally funded research. They are directly submitted to or collected by NTIS from Federal agencies for permanent accessibility to industry, academia and the public.  Before purchasing from NTIS, you may want to check for free access from (1) the issuing organization's website; (2) the U.S. Government Printing Office's Federal Digital System website http://www.gpo.gov/fdsys; (3) the federal government Internet portal USA.gov; or (4) a web search conducted using a commercial search engine such as http://www.google.com.
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
Mercury
Methylmercury
Minnesota
Restoration
Sediment
Toxicity
Water quality
Wetlands
Wildlife


 
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

Science and Technology Highlights

See a sampling of the latest scientific, technical and engineering information from NTIS in the NTIS Technical Reports Newsletter

Acrobat Reader Mobile    Acrobat Reader