489 datasets found
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Federal
From field to groundwater: Quantifying crop N budgets, performance metrics and nitrate leaching in the southern Willamette Valley, Oregon
U.S. Environmental Protection Agency —
This file contains water balances, monthly nitrate leaching and concentrations, field site descriptions and field crop inputs and harvest information. -
Federal
Deep soil nitrogen storage slows nitrate leaching through the vadose zone [dataset]
U.S. Environmental Protection Agency —
This field study was designed to evaluate how nitrate leaching rates change with depth and how seasonal and annual variation in management (e.g., fertilizer input... -
Federal
Chesapeake Bay River Input Monitoring Network 1985-2020: Monthly loads
Department of the Interior —
Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring... -
Federal
Child 2: Nutrient and streamflow trend results
Department of the Interior —
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... -
Federal
RNA-sequencing analysis of Douglas-fir transcriptome responses to diesel emissions generated with CeO2 nanoparticle additive
U.S. Environmental Protection Agency —
Transcriptome changes of Douglas-fir seedlings were analyzed to investigate molecular impacts of exposure to airborne emissions released from combustion of diesel... -
Federal
Freshwater Salinization Syndrome Alters Nitrogen Transport in Urban Watersheds
U.S. Environmental Protection Agency —
A synthesis of data mined from USGS publicly available data. This dataset is not publicly accessible because: Data is owned by University of Maryland. It can be... -
Federal
Code for: Sensitivity of soil nutrient pools, but stability of microbial processes, under reduced rainfall and altered grazing management in northern mixed-grass prairie
Department of Agriculture —
Nutrient cycling is a key ecosystem service provided by soils, which may be impacted by global change-induced droughts and alterations to grazing pressure. While the... -
Federal
Wetland Model Nitrogen and Carbon Data (Kent Island, MD, May 1995 - May 1997)
U.S. Environmental Protection Agency —
This data are composed of precipitation, wetland water depth, volumetric soil moisture, nitrogen and carbon concentrations measured into and out of a wetland, and... -
Federal
Chesapeake Bay River Input Monitoring Network 1985-2022: WRTDS output data
Department of the Interior —
Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring... -
Federal
Estimated Total Nitrogen and Total Phosphorus Loads and Yields Generated within States
U.S. Environmental Protection Agency —
Estimated state-wide total nitrogen (TN) and total phosphorus (TP) loads and yields, as predicted by the 2012 regional USGS SPARROW models.Excess nitrogen and... -
Federal
Stream water concentrations of herbicides and nutrients for sites in the northern Missouri and southern Iowa region, 1994 to 1999
Department of Agriculture —
The data set contains stream water concentrations of herbicides and nutrients for 153 sites in the northern Missouri/southern Iowa region from 1994 to 1995. The data... -
Federal
St. Louis River water quality assessment 2012, 2013
U.S. Environmental Protection Agency —
St. Louis River Area of Concern surface water nutrient (TP, TN, NOx-N, NH4-N), dissolved oxygen, and particulate (TSS, chlorophyll a) concentration data from 2012 and... -
Federal
County-based estimates of nitrogen and phosphorus content of animal manure in the United States for 1982, 1987, and 1992.
Department of the Interior —
This data set contains county estimates of nitrogen and phosphorus content of animal wastes produced annually for the years 1982, 1987, and 1992. The estimates are... -
Federal
Coupling of organic and inorganic systems and the effect on gas-particle partitioning in the southeastern United States
U.S. Environmental Protection Agency —
Several models were used to describe the partitioning of ammonia, water, and organic compounds between the gas and particle phases for conditions in the southeastern... -
Federal
National Aquatic Resource Survey Rivers and Streams Data
U.S. Environmental Protection Agency —
Data are from 1,000 river and stream sites across the conterminous US where consistent biological, chemical, physical and watershed data were gathered. The sites were... -
Federal
Specific Water Quality Sites for Piute County, Utah
Department of the Interior —
This map shows specific water-quality items and hydrologic data site information which come from QWDATA (Water Quality) and GWSI (Ground Water Information System).... -
Federal
Estimated Nitrogen Input to Fish Creek Watershed, Teton County, Wyoming
Department of the Interior —
Nutrients, such as nitrogen and phosphorus, are essential for plant and animal growth and nourishment, but the overabundance of bioavailable nitrogen and phosphorus... -
Federal
Data for: Tidal Flushing Rather Than Non-Point Source Nitrogen Pollution Drives Nutrient Dynamics in A Putatively Eutrophic Estuary
U.S. Environmental Protection Agency —
These are the data associated with the manuscript "https://www.mdpi.com/2073-4441/15/1/15." They are available under "Supplementary Materials" on the left side of the... -
County
Port Susan Buoy Raw Data Output (Feb 3, 2022 - Dec 20, 2023)
King County, Washington —
This is a raw and uncorrected dataset from a buoy located at the north end of Port Susan, near the mouth of the Stillaguamish River. The buoy is owned by the... -
Federal
Deposition, critical loads, and exceedances for 1800-2025
U.S. Environmental Protection Agency —
This data includes gridded estimates of: (1) decadally averaged total N and S deposition for the conterminous US from 1800-2025, (2) critical loads from the National...
489 datasets found