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    Federal
US EPA Nonattainment Areas and Designations
U.S. Environmental Protection Agency —
This web service contains the following state level layers:Ozone 8-hr (1997 standard), Ozone 8-hr (2008 standard), Lead (2008 standard), SO2 1-hr (2010 standard),... - 
  
    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
US EPA Nonattainment Areas and Designations - Download Package
U.S. Environmental Protection Agency —
This downloadable data package contains the following state level layers: Ozone 8-hr (1997 standard), Ozone 8-hr (2008 standard), Lead (2008 standard), SO2 1-hr (2010... - 
  
    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
Cleanups In My Community (CIMC) - Federal Facility RCRA Sites, National Layer
U.S. Environmental Protection Agency —
Federal facilities are properties owned by the federal government. This data layer provides access to Federal facilities that are Resource Conservation and Recovery... - 
  
    Federal
Cleanups In My Community (CIMC) - Hazardous Waste Corrective Actions, National Layer
U.S. Environmental Protection Agency —
This data layer provides access to Hazardous Waste Corrective Action sites as part of the CIMC web service. Hazardous waste is waste that is dangerous or potentially... - 
  
    Federal
DISCOVER-AQ data archive
U.S. Environmental Protection Agency —
DISCOVER-AQ data archive containing Data from Baltimore MD, San Juaquin Valley CA, Houston TX, and Denver CO studies. Data may be from NASA Aircraft and both EPA and... - 
  
    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
Liquid Natural Gas Terminals, US EPA Region 9, 2011, Pipeline and Hazardous Materials Safety Administration
U.S. Environmental Protection Agency —
The National Pipeline Mapping System (NPMS) is a geographic information system (GIS) created by the U.S. Department of Transportation, Pipeline and Hazardous... - 
  
    Federal
US EPA Nonattainment Areas and Designations-8 Hour Ozone (2008 NAAQS)
U.S. Environmental Protection Agency —
This web service contains the following layers: Ozone 2008 NAAQS NAA State Level and Ozone 2008 NAAQS NAA National Level. Full FGDC metadata records for each layer... - 
  
    Federal
European Centre for Medium-Range Weather Forecasts
U.S. Environmental Protection Agency —
Global sea surface temperature (SST) anomalies can affect terrestrial precipitation via ocean-atmosphere interaction known as climate teleconnection. Non-stationary... - 
  
    Federal
US EPA Nonattainment Areas and Designations-Annual PM2.5 (2012 NAAQS)
U.S. Environmental Protection Agency —
This web service contains the following layer: PM2.5 Annual 2012 NAAQS State Level. Full FGDC metadata records for each layer may be found by clicking the layer name... - 
  
    Federal
San Francisco Bay Area Baseline Trash Loading (2501-5000 gal per yr), San Francisco Bay Area CA, 2012, US EPA Region 9
U.S. Environmental Protection Agency —
Marine debris degrades ocean habitats, endangers marine and coastal wildlife, causes navigation hazards, results in economic losses to industry and governments, and... - 
  
    Federal
US EPA Nonattainment Areas and Designations-SO2 (2010 NAAQS)
U.S. Environmental Protection Agency —
This web service contains the following layer: SO2 2010 NAAQS State Level. Full FGDC metadata records for each layer may be found by clicking the layer name at the... - 
  
    Federal
San Francisco Bay Area Baseline Trash Loading (5000-25000 gal per yr), San Francisco Bay Area CA, 2012, US EPA Region 9
U.S. Environmental Protection Agency —
Marine debris degrades ocean habitats, endangers marine and coastal wildlife, causes navigation hazards, results in economic losses to industry and governments, and... - 
  
    Federal
CMAQ model data provided by EPA/ORD researchers for Makar et al. (2025) paper. Model data at monitoring stations, gridded annual deposition fields, and gridded monthly median diurnal deposition diagnostics.
U.S. Environmental Protection Agency —
This dataset contains the CMAQ model data provided by EPA/ORD researchers for the Makar et al. (2025) paper. It includes CMAQ model data extracted at monitoring... - 
  
    Federal
US EPA Nonattainment Areas and Designations-8 Hour Ozone (2015 NAAQS) - Web Service Layer
U.S. Environmental Protection Agency —
This web service layer, Ozone 8-hr (2015 standard), displays identified state level areas where ground-level ozone have not met the National Ambient Air Quality... - 
  
    Federal
Inversion emissions using Crl NH_3 measurements with bi and uni-directional flux schemes outside data
U.S. Environmental Protection Agency —
The datasets in the links consist of European surface NH3 measurements, NHx wet deposition measurements, (at https://ebas.wp2.nilu.no/data-access/, https://uk-... - 
  
    Federal
HTTK R Package v1.7 - Evaluation and Calibration of High-Throughput Predictions of Chemical Distribution to Tissues
U.S. Environmental Protection Agency —
httk: High-Throughput Toxicokinetics Functions and data tables for simulation and statistical analysis of chemical toxicokinetics ("TK") using data obtained from... - 
  
    Federal
HTTK R Package v1.0
U.S. Environmental Protection Agency —
httk: High-Throughput Toxicokinetics Functions and data tables for simulation and statistical analysis of chemical toxicokinetics ("TK") using data obtained from...