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Federal
The EPA Automotive Trends Report: Greenhouse Gas Emissions, Fuel Economy, and Technology since 1975
U.S. Environmental Protection Agency —
This annual report is part of the U.S. Environmental Protection Agency's (EPA) commitment to provide the public with information about new light-duty vehicle... -
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),... -
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
Smartway Transport Partnership Data
U.S. Environmental Protection Agency —
This asset includes all data collected by EPA in support of this program to address greenhouse gas emissions, fuel consumption, and criteria pollutants (NOx and PM)... -
Federal
National Emissions Inventory (NEI), County-Level, US, 2008, 2011, 2014, EPA OAR, OAPQS
U.S. Environmental Protection Agency —
This US EPA Office of Air and Radiation, Office of Air Quality Planning and Standards, Air Quality Assessment Division, Air Quality Analysis Group (OAR, OAQPS, AQAD,... -
Federal
Nonattainment Area - 8 hr Ozone (2015 Standard)
Department of Transportation —
The Nonattainment Area - 8 hr ozone (2015) dataset was updated on September 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department... -
Federal
KMZ files of EPA Ambient Monitors
U.S. Environmental Protection Agency —
KMZ files with the location of all the EPA ambient monitors with the ability to download data from within the description box. -
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
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.... -
Federal
Nonattainment Area - Nitrogen Dioxide (NO2 - 1971 Standard)
Department of Transportation —
The Nonattainment Area - Nitrogen Dioxide (NO2-1971) dataset was updated on September 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S.... -
Federal
US EPA Nonattainment Areas and Designations-PM10 (1987 NAAQS)
U.S. Environmental Protection Agency —
This web service contains the following layer: PM10 Nonattainment Areas (1987 NAAQS). Full FGDC metadata records for each layer may be found by clicking the layer... -
Federal
Nonattainment Area - 8 hr Ozone (2008 Standard)
Department of Transportation —
The Nonattainment Area - 8 hr ozone (2008) dataset was updated on September 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department... -
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
Criteria pollutant impacts of volatile chemical products informed by near-field modeling
U.S. Environmental Protection Agency —
Dataset includes data appearing in main text figures and CMAQ code. This dataset is associated with the following publication: Qin, M., B. Murphy, K. Isaacs, B.... -
Federal
National Emissions Inventory, U.S., 2014, EPA/OAR/OAQPS/AQAD
U.S. Environmental Protection Agency —
This web service contains layers that depict annual emissions for 2014 at the facility and county level for the following criterial pollutants: CO, Lead, NH3, NOx,... -
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
US EPA Nonattainment Areas and Designations-Lead (2008 NAAQS)
U.S. Environmental Protection Agency —
This web service contains the following layers: Lead NAA 2008 NAAQS and Lead NAA Centroids 2008 NAAQS. Full FGDC metadata records for each layer may be found by... -
Federal
Data for Volatile Chemical Product Enhancements to Criteria Pollutants in the United States
U.S. Environmental Protection Agency —
Data includes CMAQ code, CMAQ output, analysis scripts, CMAQ emission inputs, and VCPy emission framework code. -
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
Nonattainment Area - 8 hr Ozone (1997 Standard)
Department of Transportation —
The Nonattainment Area - 8 hr Ozone (1997) dataset was updated on September 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department...