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    • AQS Data Mart

    Metadata Updated: February 10, 2026

    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 queries of unlimited quantities of data. The Data Mart also includes information from the EPA?s substance and facility registry systems.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: See this page for license information.

    Downloads & Resources

    References

    https://edg.epa.gov/metadata/rest/document?id=%7B91D36CE9-2321-4EED-B812-AD70A7D7691E%7D
    https://edg.epa.gov/metadata/catalog/search/resource/details.page?uuid=%7B91D36CE9-2321-4EED-B812-AD70A7D7691E%7D

    Dates

    Metadata Created Date January 30, 2026
    Metadata Updated Date February 10, 2026
    Data Update Frequency irregular

    Metadata Source

    Harvested from EPA Non Geo Repository

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date January 30, 2026
    Metadata Updated Date February 10, 2026
    Publisher U.S. EPA Office of Air and Radiation (OAR) - Office of Air Quality Planning and Standards (OAQPS)
    Maintainer
    Identifier 91D36CE9-2321-4EED-B812-AD70A7D7691E
    Data First Published 2014-01-01
    Language en-US
    Data Last Modified 2014-01-01
    Public Access Level public
    Data Update Frequency irregular
    Bureau Code 020:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://edg.epa.gov/data/nongeo_data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 53134929-1009-4a47-b647-2a7f3ad8cde2
    Harvest Source Id 9c1c2b5b-7925-4ca2-a663-ca2131653db1
    Harvest Source Title EPA Non Geo Repository
    License https://edg.epa.gov/EPA_Data_License.htm
    Old Spatial -180.0,18.0,-66.0,72.0
    Program Code 020:072
    Related Documents https://edg.epa.gov/metadata/rest/document?id=%7B91D36CE9-2321-4EED-B812-AD70A7D7691E%7D, https://edg.epa.gov/metadata/catalog/search/resource/details.page?uuid=%7B91D36CE9-2321-4EED-B812-AD70A7D7691E%7D
    Source Datajson Identifier True
    Source Hash 2acb96d03241fd6501d2474ec4a71e45fb6b52ddcd199460498bfccd015ff657
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -180.0, 18.0, -180.0, 72.0, -66.0, 72.0, -66.0, 18.0, -180.0, 18.0}

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