Upper Midwest Environmental Sciences Center
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Year 1999 Findings for the Long Term Resource Monitoring Program| Figure 3. | Transportation of total nitrogen load (Nox-N) in Navigation Pool 13 of the Upper Mississippi River and discharge at Dam 13, 1993–1997. |
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://www.umesc.usgs.gov/reports_publications/ltrmp/1999/summary_findings/figure03.html
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Page Last Modified:
December 31, 2012
