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Federal
Walkability Index
U.S. Environmental Protection Agency —
The Walkability Index dataset characterizes every Census 2019 block group in the U.S. based on its relative walkability. Walkability depends upon characteristics of... -
Federal
IPCC AR4, AR5, and AR6 20-, 100-, and 500-year GWPs
U.S. Environmental Protection Agency —
The International Panel for Climate Change (IPCC) produces regular Assessment Reports that provide global warming potentials (GWPs) for greenhouse gases (GHG) in the... -
Federal
National List of Beaches
U.S. Environmental Protection Agency —
EPA has published a list of coastal recreation waters adjacent to beaches (or similar points of access) used by the public in the U.S. The list, required by the... -
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
RACT/BACT/LAER Clearninghouse (RBLC)
U.S. Environmental Protection Agency —
OAR's RACT, BACT, LAER Clearinghouse (RBLC) data asset contains summary information on selected air permitting actions from EPA, state, and local permitting agencies... -
Federal
National Greenhouse Gas Emission Inventory
U.S. Environmental Protection Agency —
The National Greenhouse Gas Emission Inventory contains information on direct emissions of greenhouse gases as well as indirect or potential emissions of greenhouse... -
Federal
Report on U.S. Methane Emissions 1990-2020: Inventories, Projections, and Opportunities for Reductions: 2001 Updated emission and cost estimates
U.S. Environmental Protection Agency —
This dataset contains relative and absolute forecasts of emissions through 2020 for landfills, natural gas and oil systems, coal mines, manure management and enteric... -
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
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
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 Tree Cover Configuration and Connectivity, Water Background 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). The 1-meter resolution tree... -
Federal
ATTAINS Assessments
U.S. Environmental Protection Agency —
State water quality assessment decisions reported to EPA under the Integrated Report (IR), and Clean Water Act Sections 303(d) and 305(b). This service provides... -
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
Water quality data
U.S. Environmental Protection Agency —
The ZTRAX data is a national database of property sales collected by Zillow. The data is available to researchers who submit a research proposal to Zillow. Portions... -
Federal
Ambient Air Quality Data Inventory
U.S. Environmental Protection Agency —
The Office of Air and Radiation's (OAR) Ambient Air Quality Data (Current) contains ambient air pollution data collected by EPA, other federal agencies, as well as... -
Federal
Resoure Recovery from E-waste
U.S. Environmental Protection Agency —
Sustainable management of electronic waste is critical to achieving a circular-economy and minimizing environment and public health risks. The objective of this study... -
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
Enforcement and Compliance History Online (ECHO) Facilities
U.S. Environmental Protection Agency —
ECHO provides integrated compliance and enforcement information for about 800,000 regulated facilities nationwide. Its features range from simple to advanced,... -
Federal
[Extramural Research] Emission & Generation Resource Integrated Database (eGRID)
U.S. Environmental Protection Agency —
The Emissions & Generation Resource Integrated Database (eGRID) is a comprehensive source of data on characteristics of almost all electric power generated in the...