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Water-quality and streamflow datasets used in Weighted Regressions on Time,...
In 1991, the U.S. Geological Survey (USGS) began a study of more than 50 major river basins across the Nation as part of the National Water-Quality Assessment (NAWQA) project.... -
Datasets for estimating invertebrate response to changes in total nitrogen,...
These data were used to describe a possible approach to estimate changes in invertebrate taxa richness at sites across the United States with known water-quality trends but no... -
Estimated nutrient and sediment concentrations from major rivers in Illinois...
During water years 2016–2021 (a water year begins on October 1 and ends on September 30 and is designated by the year in which it ends), the U.S. Geological Survey (USGS), in... -
Eutrophication models to simulate changes in the water quality of Green...
In this data release, we provide data to describe the water quality in Green Lake, Wisconsin, from 1905 to 2020, primarily the constituents for which it is impaired, including...