92 datasets found
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Federal
TRACI Spatial Eutrophication Characterization Factors_2020-10
U.S. Environmental Protection Agency —
This dataset provides spatially-explicit freshwater and marine eutrophication characterization factors for the TRACI life cycle impact assessment method, as well as... -
Federal
Evaluating water-quality trends in agricultural watersheds prioritized for management-practice implementation
U.S. Environmental Protection Agency —
Water-quality and streamflow data are available at https://doi.org/10.5066/F7P55KJN. Calculated nutrient and sediment loads are available at... -
Federal
Next Generation National Nutrient Inventory for Nitrogen and Phosphorus (1987 to 2017)
U.S. Environmental Protection Agency —
The United States Environmental Protection Agency’s National Nutrient Inventory provides estimates of major agricultural, urban, atmospheric, and natural nutrient... -
Federal
Improved mapping of coastal salt marsh habitat change at Barnegat Bay (NJ, USA) using object-based image analysis of high-resolution aerial imagery_data
U.S. Environmental Protection Agency —
Data for the classification of coastal land-cover of Barnegat Bay (Fig. 1) were downloaded from the USGS Earth Resources Observation and Science (EROS) Center via the... -
Federal
Estimates of lake nitrogen, phosphorus, and chlorophyll-a concentrations to characterize harmful algal bloom risk across the United States
U.S. Environmental Protection Agency —
The objective of this research was to predict nutrient, chlorophyll-a, and associated harmful algal bloom, hypoxia, and eutrophication effects in US lakes. This... -
Federal
1987-2018 cyanobacteria and water quality data for 20 reservoirs
U.S. Environmental Protection Agency —
These data include cyanobacteria cell densities (including maximum cell densities observed for each year in each reservoir), annual summer (June-August)... -
Federal
LMR watershed temporal DNA metabarcoding 2016 study
U.S. Environmental Protection Agency —
LMR watershed temporal DNA metabarcoding 2016 study. This dataset is associated with the following publication: Smucker, N., E. Pilgrim, H. Wu, C. Nietch, J. Darling,... -
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
All raw data used to generate results
U.S. Environmental Protection Agency —
This dataset contains all data used in this study, including site ID, latitude, longitude, watershed land cover, water chemistry, and carbon and nitrogen stable... -
Federal
Coupling the dual-isotope indicators of water and nitrate indicates legacy groundwater pollution
U.S. Environmental Protection Agency —
Shallow groundwater samples were collected since 2006 for routine analysis by ODEQ from 16 domestic wells (installation dating from the 1970s) and 23 ODEQ groundwater... -
Federal
Stable isotope data for Ammonium loss microbiologically mediated by Fe(III) and Mn(IV) reduction along a coastal lagoon system
U.S. Environmental Protection Agency —
These data are carbon and nitrogen content and stable isotope measurements of sediments from a lagoon in the Baja California Peninsula. The %N column gives the... -
Federal
LMR_spatial_temporal_analysis_data
U.S. Environmental Protection Agency —
This file includes the following data for 25 stream sites in the Little Miami River watershed: diatom operational taxonomic units with their numbers and relative... -
Federal
Soil Health Dataset from Kansas Farms 2023-2024
U.S. Environmental Protection Agency —
A workbook of all the soils data collected near Holton, Kansas, in agricultural fields. Laboratory analysis of soil properties was completed by Ward Labs in Kearny... -
Federal
Long-term trends in reactive N deposition in the U.S.
U.S. Environmental Protection Agency —
Data presented in this manuscript are publicly available per the links provided. These include the US EPA National Emissions Inventory, US EPA Clean Air Status and... -
Federal
Dry Surface Layer_2020
U.S. Environmental Protection Agency —
Summary of lab experiments relating soil dry surface layer to soil moisture and other soil properties. This dataset is not publicly accessible because: This project... -
Federal
Chesapeake Bay Nitrogen Trend Predictor Dataset
U.S. Environmental Protection Agency —
Please review Zhang et al. (2021) for details on study design and datasets (https://doi.org/10.1016/j.watres.2022.118443). In summary, predictor and response variable... -
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
Main data files
U.S. Environmental Protection Agency —
Main dataset of stable isotope, analytes, and environmental parameters measured. This dataset is associated with the following publication: Devereux, R., Y. Wan, J.L.... -
Federal
Chamber incubation data 2016-17 version 1
U.S. Environmental Protection Agency —
These data were collected to compare nitrogen and oxygen exchange at the sediment-water interface in two adjacent habitat types common in estuaries. These are... -
Federal
Calapooia_NInventory_2008
U.S. Environmental Protection Agency —
The dataset contains calculated results of annual and seasonal input of nitrogen from seven major sources in the Calapooia River Watershed and its subwatersheds. It...
92 datasets found