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Federal
Toxics Release Inventory (TRI)
U.S. Environmental Protection Agency —
The Toxics Release Inventory (TRI) is a dataset compiled by the U.S. Environmental Protection Agency (EPA). It contains information on the release and waste... -
Federal
Great Lakes Environmental Database (GLENDA)
U.S. Environmental Protection Agency —
The Great Lakes Environmental Database (GLENDA) houses environmental data collected by EPA Great Lakes National Program Office (GLNPO) programs that sample water,... -
Federal
Clean Air Status and Trends Network (CASTNET) Download Data Module
U.S. Environmental Protection Agency —
The CASTNET Download Data module allows users to select, view, and download CASTNET data (Raw, Aggregate, Modeled & Factual Data) based on user selections.... -
Federal
Health and Environmental Research Online (HERO) database
U.S. Environmental Protection Agency —
HERO contains the key studies EPA uses to develop environmental risk assessments for the public. EPA uses risk assessments to characterize the nature and magnitude of... -
Federal
Headwater streams and catchments across the conterminous United States
U.S. Environmental Protection Agency —
Data available in Zenodo via doi: 10.5281/zenodo.16318572 Headwater streams play critical roles in hydrologic and biogeochemical processes and functions, yet their... -
Federal
Clean Air Markets Program Data Application (CAMPD)
U.S. Environmental Protection Agency —
The Clean Air Markets Program Data (CAMPD) application, accessible at https://campd.epa.gov/, allows users to view Clean Air Markets data through the Custom Data... -
Federal
Environmental Monitoring and Assessment Program (EMAP)
U.S. Environmental Protection Agency —
The Environmental Monitoring and Assessment Program (EMAP) was a national research program run by EPA’s Office of Research and Development from 1990 to 2008 to... -
Federal
EPA Long-Term Monitoring of Acidified Surface Waters
U.S. Environmental Protection Agency —
This dataset compiled surface water chemistry data from 1980 to 2024. Data were collected in four regions in the eastern United States (Virginia streams, New York... -
Federal
Drycleaner Database - Region 7
U.S. Environmental Protection Agency —
THIS DATA ASSET NO LONGER ACTIVE: This is metadata documentation for the Region 7 Drycleaner Database (R7DryClnDB) which tracks all Region7 drycleaners who notify... -
Federal
Swedish Lakes Dataset
U.S. Environmental Protection Agency —
This dataset consists of water quality and phytoplankton community structure data collected at 85 Swedish Lakes. This dataset is associated with the following... -
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
The StreamCat Dataset: Accumulated Attributes for NHDPlusV2 (Version 2.1) Catchments for the Conterminous United States: National Nutrient Inventory
U.S. Environmental Protection Agency —
These data represent the National Nutrient Inventory's quantification of major inputs (farm fertilizer, urban fertilizer, livestock manure, human waste, deposition,... -
Federal
EnviroAtlas Potential Wetland Areas CONUS 2024
U.S. Environmental Protection Agency —
Wetland habitats provide critical ecosystem services to the surrounding landscape, including nutrient and pollutant retention, flood mitigation, and carbon storage.... -
Federal
Nitrous Oxide flux measurements under various amendments
U.S. Environmental Protection Agency —
The dataset consists of measurements of soil nitrous oxide emissions from soils under three different amendments: glucose, cellulose, and manure. Data includes the... -
Federal
Our Nation's Air - annual air trends report, USA, EPA OAR OAQPS
U.S. Environmental Protection Agency —
Annual air trends report in the form of an interactive web application. The report features a suite of visualization tools that allow the user to: -Learn about air... -
Federal
The StreamCat Dataset: Accumulated Attributes for NHDPlusV2 (Version 2.1) Catchments for the Conterminous United States: Nitrogen Surplus Density
U.S. Environmental Protection Agency —
This dataset represents the density of nitrogen surplus as kg N / yr, excluding biological N Fixation, within individual, local NHDPlusV2 catchments and upstream,... -
Federal
Community EcoHealth Index (CEHI) Output Values
U.S. Environmental Protection Agency —
CEHI values and normalized values calculated for each Census block group within each community based on metric weights in individual communities (CEHI_IndW) and based... -
Federal
The LakeCat Dataset: Accumulated Attributes for NHDPlusV2 (Version 2.1) Catchments for the Conterminous United States: 2010 US Census Housing Unit and Population Density
U.S. Environmental Protection Agency —
This dataset represents the population and housing unit density within individual local and accumulated upstream catchments for NHDPlusV2 Waterbodies based on the... -
Federal
The StreamCat Dataset: Accumulated Attributes for NHDPlusV2 (Version 2.1) Catchments for the Conterminous United States: Septic System Density
U.S. Environmental Protection Agency —
This dataset represents density of septic systems within individual, local NHDPlusV2 catchments and upstream, contributing watersheds. The data is based on the 1990... -
Federal
Urbanization imprints on soil texture and carbon
U.S. Environmental Protection Agency —
We provide a unique dataset characterizing urban soil profiles and their complementary pre-urban reference soil profiles for carbon content, and a proxy for soil...