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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
The NOAA NCEI Global Marine Microplastics Data Collection (1972-present)
National Oceanic and Atmospheric Administration, Department of Commerce —
Microplastics (i.e., plastics measuring less than 5mm) pollution is a growing problem affecting coastal communities, marine ecosystems, aquatic life, and human... -
Federal
Air Quality System (AQS) Monitoring Network, EPA OAR OAQPS
U.S. Environmental Protection Agency —
This GIS dataset contains points which depict air quality monitors within EPA's Air Quality System (AQS) monitoring network. This dataset is updated weekly to reflect... -
Air Quality History
District of Columbia —
This dataset contains quality assured and DOEE-certified air quality data collected from the District’s five air monitoring network sites. The dataset covers a three-... -
Federal
EPA Facility Registry Service (FRS): Facility Interests Dataset Download
U.S. Environmental Protection Agency —
This downloadable data package consists of location and facility identification information from EPA's Facility Registry Service (FRS) for all sites that are... -
Federal
Daily and Annual PM2.5, O3, and NO2 Concentrations at ZIP Codes for the Contiguous U.S., 2000-2016, v1.0
National Aeronautics and Space Administration —
The Daily and Annual PM2.5, O3, and NO2 Concentrations at ZIP Codes for the Contiguous U.S., 2000-2016, v1.0 data set contains daily and annual concentration... -
Federal
Great Smoky Mountains National Park Trout Distribution
Department of the Interior —
The brook trout (Salvelinus fontinalis) is the only trout native to the southern Appalachian Mountains. It was once widespread in Great Smoky Mountains National Park... -
Emissions Inventory
District of Columbia —
NEI point sources include emissions estimates for larger sources that are located at a fixed, stationary location. Point sources in the NEI include large industrial... -
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
EnviroAtlas - Selected National Air Toxics Assessment Results by Census Tract - 2014
U.S. Environmental Protection Agency —
These layers are a selection of the National Air Toxics Assessment (NATA) 2014 estimates of ambient concentrations and health-effect results by 2010 U.S. Census... -
Federal
EPA Facility Registry Service (FRS): ER_WWTP_NPDES
U.S. Environmental Protection Agency —
This web feature service contains location and facility identification information from EPA's Facility Registry System (FRS) for the subset of Waste Water Treatment... -
Federal
TRI Reporting Facilities Map Service
U.S. Environmental Protection Agency —
This map service shows point locations for facilities that submitted TRI reports to EPA during the most recent reporting year. EPA's Locational Reference Table is... -
Federal
Datasets managed by the NSF Arctic Data Center and archived at the NOAA National Centers for Environmental Information
National Oceanic and Atmospheric Administration, Department of Commerce —
The National Science Foundation (NSF) Arctic Data Center (ADC) preserves and provides access to multi-disciplinary NSF-funded global cryosphere-land-ocean-atmosphere... -
Federal
EPA Facility Registry Service (FRS): NPDES_MAJOR
U.S. Environmental Protection Agency —
This web feature service contains location and facility identification information from EPA's Facility Registry Service (FRS) for the subset of facilities that are... -
Federal
EPA Facility Registry Service (FRS): ER_WTP
U.S. Environmental Protection Agency —
This web feature service contains location and facility identification information from EPA's Facility Registry System (FRS) for the subset of Waste Water Treatment... -
Federal
Water Dischargers/IGD: EF_NPDES
U.S. Environmental Protection Agency —
EF_NPDES is a subset of facilities from FRS_PROGRAM_FACILITY and associated best-available geospatial coordinates which are refreshed daily. The layer shows only... -
State
Enviromental Facility (point)
State of Arkansas —
Location data for facilities, incident sites and monitoring points, at the facility level, regulated or tracked by environmental programs within the jurisdiction of... -
Federal
HULAHULA R NR KAKTOVIK AK (USGS 15980000)
National Oceanic and Atmospheric Administration, Department of Commerce —
Timeseries data from 'HULAHULA R NR KAKTOVIK AK (USGS 15980000)' (gov_usgs_nwis_15980000) -
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
Nonattainment Area - Carbon Monoxide (CO - 1971 Standard)
Department of Transportation —
The Nonattainment Area - Carbon Monoxide (CO-1971) dataset was updated on September 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S....