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Federal
Toxicity Reference Database
U.S. Environmental Protection Agency —
The Toxicity Reference Database (ToxRefDB) contains approximately 30 years and $2 billion worth of animal studies. ToxRefDB allows scientists and the interested... -
Federal
EnviroAtlas Proximity to Parks Web Service
U.S. Environmental Protection Agency —
This EnviroAtlas web service supports research and online mapping activities related to EnviroAtlas (https://www.epa.gov/enviroatlas). This EnviroAtlas dataset shows... -
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
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
RCRA Generators
U.S. Environmental Protection Agency —
EPA regulates hazardous waste under the Resource Conservation and Recovery Act (RCRA) to ensure these wastes are managed in ways that protect human health and the... -
Federal
EnviroAtlas - Public outdoor recreational area (per capita) within walking distance for the conterminous United States
U.S. Environmental Protection Agency —
This EnviroAtlas dataset measures accessibility (i.e., proximity or nearness) of public outdoor recreational areas within an 800 meter walk (approximately 1/2 mile or... -
Federal
Consumption-Based Emissions Inventory Summaries for Selected U.S. States, 2012-2019
U.S. Environmental Protection Agency —
Summaries of Consumption-Based Emission Inventory (CBEI) results for states outside the Northeast, in other words states not covered in EPA's report on CBEIs the... -
Federal
ENERGY STAR Certified Central Air Conditioners and Air-Source Heat Pumps
U.S. Environmental Protection Agency —
Certified models meet all ENERGY STAR requirements as listed in the Version 6.1 or 6.2 ENERGY STAR Program Requirements for Central Air Conditioners and Air-Source... -
Federal
ENERGY STAR Certified Computers V9.0
U.S. Environmental Protection Agency —
Certified models meet all ENERGY STAR requirements as listed in the Version 9.0 Requirements that are effective as of October 27, 2025. -
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
USEEIO Models with Import Emission Factors for Greenhouse Gases for 2022 from CEDA coupled model
U.S. Environmental Protection Agency —
The dataset provides a set of Import Emission Factors (IEF) for USEEIO models developed using the CEDA model (Watershed Technology, Inc.) along with example USEEIO... -
Federal
Air quality data
U.S. Environmental Protection Agency —
AQS data is a publicly available dataset, which is part of this study. This data can be found on EPA website https://aqs.epa.gov/aqsweb/airdata/download_files.html... -
Federal
National Greenhouse Gas Emission Inventory (EV-GHG)
U.S. Environmental Protection Agency —
The EV-GHG Mobile Source Data asset contains measured mobile source GHG emissions summary compliance information on light-duty vehicles, by model, for certification... -
Federal
EnviroAtlas - Estimated floodplain map for the Conterminous United States
U.S. Environmental Protection Agency —
Understanding the relationship between flood inundation and floodplains is critical for ecosystem and community health and well-being, as well as targeting floodplain... -
Federal
Risk-Screening Environmental Indicators (RSEI)
U.S. Environmental Protection Agency —
EPA's Risk-Screening Environmental Indicators (RSEI) is a geographically-based, multimedia model and prioritization tool that helps policy makers, researchers, and... -
Federal
EnviroAtlas - PRISM 30-Year Normal Annual Precipitation and Minimum and Maximum Temperature for the Contiguous US (1991–2020)
U.S. Environmental Protection Agency —
This annual data was accessed from the PRISM project website (https://prism.oregonstate.edu/normals/) and has a spatial resolution of 30 arcsec (800 m). The three... -
Federal
Metadata for Coral Reef Resilience Assessment for Puerto Rico
U.S. Environmental Protection Agency —
Climate change threatens coral reefs through multiple pathways and interactions with local stressors. More resilient reefs have a higher likelihood of returning to a... -
Federal
U.S. Level III and IV Ecoregions (U.S. EPA)
U.S. Environmental Protection Agency —
This map service displays Level III and Level IV Ecoregions of the United States and was created from ecoregion data obtained from the U.S. Environmental Protection... -
Federal
Superfund Site Information
U.S. Environmental Protection Agency —
This asset includes a number of individual data sets related to site-specific information for Superfund, which is governed under the Comprehensive Environmental... -
Federal
National Hydrography Dataset Plus - NHDPlus
U.S. Environmental Protection Agency —
This high-level metadata data document will be supplemented with detailed regional metadata at a later date. The NHDPlusV2 is an integrated suite of application-ready...