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    • Criteria Air Emissions Trends

    Metadata Updated: February 10, 2026

    The Air Emissions Trends site provides national trends of criteria pollutant and precursor emissions data based on the the National Emissions Inventory (NEI) from 1970 - the latest NEI year.

    Access & Use Information

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

    Downloads & Resources

    No file downloads have been provided. The publisher may provide downloads in the future or they may be available from their other links.

    References

    https://edg.epa.gov/metadata/catalog/search/resource/details.page?uuid=%7B9B89FEF1-068B-4C8E-9A26-D95821871A42%7D
    https://edg.epa.gov/metadata/rest/document?id=%7B9B89FEF1-068B-4C8E-9A26-D95821871A42%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 9B89FEF1-068B-4C8E-9A26-D95821871A42
    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 79ec4275-673b-4989-9bce-0a5ac5b0d22c
    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/catalog/search/resource/details.page?uuid=%7B9B89FEF1-068B-4C8E-9A26-D95821871A42%7D, https://edg.epa.gov/metadata/rest/document?id=%7B9B89FEF1-068B-4C8E-9A26-D95821871A42%7D
    Source Datajson Identifier True
    Source Hash 3eb1d98d1e513f874ede06be211be393c9e744c9f40133702c733cfa0345fc3a
    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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