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Federal
Air Quality Measures on the National Environmental Health Tracking Network
U.S. Department of Health & Human Services —
The Environmental Protection Agency (EPA) provides air pollution data about ozone and particulate matter (PM2.5) to CDC for the Tracking Network. The EPA maintains a... -
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
Regional Air Quality Data
U.S. Environmental Protection Agency —
This asset provides data on regional air quality, including trace level SO2, nitric acid, ozone, carbon monoxide, and NOy; and particulate sulfate, nitrate, and... -
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
Global Forecast System (GFS) 1.0 Degree
National Oceanic and Atmospheric Administration, Department of Commerce —
The Global Forecast System (GFS) is a weather forecast model produced by the National Centers for Environmental Prediction (NCEP). Dozens of atmospheric and land-soil... -
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
Clean Air Status and Trends Network (CASTNET): Ozone
U.S. Environmental Protection Agency —
8-hour daily maximum ozone concentrations as measured by the Clean Air Status and Trends Network (CASTNET) -
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
NIST Reference Fluid Thermodynamic and Transport Properties Database (REFPROP) Version 9 - SRD 23
National Institute of Standards and Technology —
**NOTICE: THIS VERSION OF REFPROP (9.1) has been superseded by Version 10: https://doi.org/10.18434/T4/1502528 ** NIST Standard Reference Data 23 contains revised... -
Federal
Integrated Surface Dataset (Global) (Version Superseded)
National Oceanic and Atmospheric Administration, Department of Commerce —
This version has been superseded by a newer version. It is highly recommended for users to access the current version. Users should only access this superseded... -
Air Quality Purple Air Sensors
District of Columbia —
This dataset is made up of hourly measurements of PM2.5 and PM10, and meteorological measurements, collected through DOEE’s Purple Air network in the District of... -
Federal
Temperature, ozone, and PM2.5 data for "Associations Between Simulated Future Changes in Climate, Air Quality, and Human Health" by Fann et al., 2021.
U.S. Environmental Protection Agency —
This dataset contains modeled temperature, ozone, and PM2.5 data for the United States over the 21st century, using two global climate model scenarios and two... -
City
NYCCAS Air Pollution Rasters
City of New York —
Citywide raster files of annual average predicted surface for nitrogen dioxide (NO2), fine particulate matter (PM2.5), black carbon (BC), and nitric oxide (NO);... -
Federal
SOLVE I DC-8 Analysis Model Data
National Aeronautics and Space Administration —
SOLVE1_Analysis_DC8_Data contains modeled trajectories and meteorological data along the flight path for the DC-8 aircraft collected during the SAGE III Ozone Loss... -
Federal
Characterization Factors for Construction Material EPD Indicators (ISO21930-LCIA-US) v0.1
U.S. Environmental Protection Agency —
This dataset contains characterization factors (CFs) for the five mandatory life cycle impact assessment (LCIA) categories required in ISO 21930:2017: 1. Greenhouse... -
Federal
AIRS/Aqua L3 8-day Support Product (AIRS-only) 1 degree X 1 degree V006 (AIRS3SP8) at GES DISC
National Aeronautics and Space Administration —
The Atmospheric Infrared Sounder (AIRS) is a grating spectrometer (R = 1200) aboard the second Earth Observing System (EOS) polar-orbiting platform, EOS Aqua. In... -
County
Allegheny County Air Quality
Allegheny County / City of Pittsburgh / Western PA Regional Data Center —
Air quality data is collected from the Allegheny County Health Department monitors throughout the county. This data must be verified by qualified individuals before... -
Federal
CRACMM Github Repo Update 2025 (October 2025)
U.S. Environmental Protection Agency —
This dataset contains a link to the public EPA CRACMM github repository and an update (zip file) that will be put into the repo. -
Federal
Sounder SIPS: AQUA AIRS IR + MW Level 3 CLIMCAPS : Comprehensive Quality Control Gridded Daily V2 (SNDRAQIML3CDCCP) at GES DISC
National Aeronautics and Space Administration —
WARNING: To users of the derived product “co_mmr_midtrop” (carbon monoxide mass mixing ratio to dry air [kg/kg] at ~500 hPa). This variable has a significant bias due... -
Federal
US EPA Nonattainment Areas and Designations-8 Hour Ozone (1997 NAAQS)
U.S. Environmental Protection Agency —
This web service contains the following layers: Ozone 1997 NAAQS NAA State Level and Ozone 1997 NAAQS NAA National Level. Full FGDC metadata records for each layer...