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Water-quality trends for rivers and streams in the Delaware River Basin...
The datasets provided here are the output from the Seasonal Kendall Trend (SKT) test and Weighted Regressions on Time, Discharge, and Season (WRTDS) model that characterize... -
Vulnerability of shallow ground water and drinking-water wells to nitrate in...
This data set represents the percent of woody wetlands and emergent herbaceous wetlands land cover in the conterminous United States. The data set was used as an input data... -
Patterns of Diel Variation in Nitrate Concentrations in the Potomac River
This data set includes nitrate concentration, water temperature, and discharge collected every 15 minutes during Dec. 2011 - Nov. 2013 from the USGS gage at the Potomac River... -
Alaska Geochemical Database Version 3.0 (AGDB3) including best value data...
The Alaska Geochemical Database Version 3.0 (AGDB3) contains new geochemical data compilations in which each geologic material sample has one best value determination for each... -
Vulnerability of shallow ground water and drinking-water wells to nitrate in...
This data set represents saturation overland flow estimated by TOPMODEL, in percent of streamflow, in the conterminous United States. The data set was used as an input data... -
Bering Sea
This dataset has no description
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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.... -
I01 SUNA - Nitrate Observations Corrected
Nitrate SUNA V2 sensors (Sea-Bird Scientific) were deployed on NERACOOS Buoy I (Latitude: 44 deg 6.10'N and Longitude: 68 deg 6.73'W) at 50m from November 6, 2015 to December 3,... -
Vulnerability of shallow ground water and drinking-water wells to nitrate in...
This data set represents 1990 block group population density, in people per square kilometer, in the conterminous United States. This data set represents The data set was used... -
Child 2: Nutrient and streamflow trend results
This data set includes WRTDS nutrient flux trend results and the values of daily streamflow trend results displayed in the Quantile-Kendall plots. For 1995-2015 nutrient trends,... -
CTD and Water Chemistry Data of the Eastern Pacific Redox Experiment of May...
This dataset has no description
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M01 SUNA - Nitrate Observations Corrected
Various nitrate sensors including the SUNA V1, SUNA V2 and ISUS (Sea-Bird Scientific) were deployed on NERACOOS Buoy M (Latitude: 43ð 29.44'N and Longitude: 67ð 52.79'W)... -
Raster dataset showing the probability of detecting...
This dataset is one of eight datasets produced by this study. Four of the datasets predict the probability of detecting atrazine and(or) desethyl-atrazine (a breakdown product... -
Lake Erie Tributaries: Nutrient and streamflow trend results
This data set includes WRTDS nutrient flux trend results and the values of daily streamflow trend results displayed in the Quantile-Kendall plots. For 1995-2015 nutrient trends,... -
Bering Sea
This dataset has no description
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Vulnerability of shallow ground water and drinking-water wells to nitrate in...
This data set represents the presence or absence of poorly sorted glacial till east of the Rocky Mountains in the conterminous United States. The data set was used as an input... -
Vulnerability of shallow ground water and drinking-water wells to nitrate in...
This data set represents the area of National Resources Inventory surface drainage, field ditch conservation practice, in square kilometers, in the conterminous United States.... -
SRM 3185 Nitrate Anion (NO3-) Standard Solution
This Standard Reference Material (SRM) is intended as a primary standard for the quantitative determination of nitrate using anion ion chromatography (IC) or other methods. A... -
Modeled nutrient and sediment concentrations from the Des Plaines River at...
During the 2018–20 water years, the U.S. Geological Survey, in cooperation with the Metropolitan Water Reclamation District of Greater Chicago, operated a continuous monitoring... -
Nutrients, Escherichia coli, and microbial source tracking markers in...
Concerns exist that the degradation of water quality in Salado Creek near Salado, Texas could adversely affect recreational uses and harm salamander populations that live in and...