Reconnaissance of mercury and methylmercury in the St. Croix River and selected tributaries, Minnesota and Wisconsin, July 2000 through October 2001
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- Document: Report (1395 pdf)
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Abstract
A reconnaissance-level assessment to characterize total mercury and methylmercury concentrations during summer lowflow conditions was conducted in the St. Croix River Basin during July 2000 through October 2001. Samples were collected at 6 main stem and 16 tributary sites. Loads of total mercury and methylmercury increased in the St. Croix River main stem between Nevers Dam and Franconia. Total mercury and methylmercury concentrations were greatest during July in the Namekagon River. Methylmercury yields in the Namekagon River and Rush Creek were greater than the yield for other tributary streams. Methylmercury concentrations and yields were greater in tributaries draining wetland/forest watersheds than in tributaries draining agricultural/forest watersheds.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Reconnaissance of mercury and methylmercury in the St. Croix River and selected tributaries, Minnesota and Wisconsin, July 2000 through October 2001 |
| Series title | Water-Resources Investigations Report |
| Series number | 2003-4223 |
| DOI | 10.3133/wri034223 |
| Year Published | 2003 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Mounds View, MN |
| Contributing office(s) | Minnesota Water Science Center |
| Description | iv, 9 p. |
| Country | United States |
| State | Minnesota, Wisconsin |
| Other Geospatial | St. Croix River Basin |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |