Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content
38 datasets found
  • Federal

    www.FuelEconomy.gov

    U.S. Environmental Protection Agency —

    FuelEconomy.gov provides comprehensive information about vehicles' fuel economy. The official U.S. government site for fuel economy information, it is operated by the...
  • Federal

    AirCompare

    U.S. Environmental Protection Agency —

    AirCompare contains air quality information that allows a user to compare conditions in different localities over time and compare conditions in the same ___location at...
  • 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...
  • Federal

    AirNow Real Time Air Quality REST API

    U.S. Environmental Protection Agency —

    A REST web service API allowing the retrieval of real time air quality index data from AirNow.
  • 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

    Air Quality System (AQS)

    U.S. Environmental Protection Agency —

    The Air Quality System (AQS) database contains measurements of air pollutant concentrations from throughout the United States and its territories. The measurements...
  • Federal

    AirNow

    U.S. Environmental Protection Agency —

    AirNow is a collaboration between EPA, and othe federal, state and local agencies to provide complete and real-time air quality information.
  • Federal

    AQS Data Mart

    U.S. Environmental Protection Agency —

    The AQS Data Mart is a database that contains all of the information from the AQS system. It is a storehouse of air quality information that allows users to make...
  • Federal

    Historical Ambient Air Quality Data Inventory

    U.S. Environmental Protection Agency —

    The Historical Ambient Air Quality Data Inventory contains measured and estimated data on ambient air pollution for use in assessing air quality, assisting in...
  • Federal

    Emissions Modeling Clearinghouse

    U.S. Environmental Protection Agency —

    The Emissions Modeling Clearinghouse (EMCH) supports and promotes emissions modeling activities both internal and external to the EPA. Through this site, the EPA...
  • Federal

    AirData

    U.S. Environmental Protection Agency —

    The AirData site provides access to yearly summaries of United States air pollution data, taken from EPA's air pollution databases. AirData has information about...
  • Federal

    Compliance and Emissions Data Reporting Interface (CEDRI)

    U.S. Environmental Protection Agency —

    EPA regulations codified in 40 CFR Part 60 and 63 require affected sources to perform emissions source tests, conduct continuous emissions monitoring, and submit...
  • Federal

    National Emission Inventory

    U.S. Environmental Protection Agency —

    The National Emission Inventory contains measured, modeled, and estimated data for emissions of all known source categories in the US (stationary sources, fires,...
  • Federal

    AP-42 Emissions Factors (WebFIRE)

    U.S. Environmental Protection Agency —

    Emissions factors have long been the fundamental tool in developing national, regional, state, and local emissions inventories for air quality management decisions...
  • Federal

    Air Emissions Where You Live KMZ File

    U.S. Environmental Protection Agency —

    A KMZ file with the ___location of all major facilities that emit pollutants into the atmopshere.
  • Federal

    AirData AQS REST API

    U.S. Environmental Protection Agency —

    A REST web service API allowing the retrieval of historical air quality data from EPA.
  • Federal

    Air Quality System (AQS) ambient observations: 2007 PM2.5

    U.S. Environmental Protection Agency —

    Ambient PM2.5 (particulate matter less than 2.5 microns) concentrations from the national ambient air quality monitoring networks stored in the Air Quality System (AQS).
  • Federal

    OAR Tribal System

    U.S. Environmental Protection Agency —

    OTS is an internal EPA national tribal database to assist the Regions and HQs in tracking tribal performance information.
  • Federal

    Air Trends

    U.S. Environmental Protection Agency —

    Air Trends provides geographic trend information for specific air pollutants.
  • Federal

    Photochemical Assessment Monitoring Stations (PAMS)

    U.S. Environmental Protection Agency —

    Photochemical Assessment Monitoring Stations (PAMS). This file provides information on the numbers and distribution (latitude/longitude) of air monitoring sites which...
38 datasets found

You can also access this registry using the API (see API Docs).

Didn't find what you're looking for? Suggest a dataset here.