WASHINGTON, Dec. 1 (TNSLrpt) -- The U.S. Geological Survey has released Scientific Investigations Report 2025-5099, titled 'Temporal changes in nutrient concentrations in the Lower Grand River and selected drainage basins, Missouri and Iowa, during the Mississippi River Basin Healthy Watersheds Initiative (2010-23),' by Brock J.W. Kamrath, Courtney N. Lauderback and Jennifer C. Murphy, documenting how nitrogen and phosphorus levels have changed during a major conservation effort. The 1 . . .

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