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    • Air Quality System (AQS) ambient observations: 2008 Lead

    Metadata Updated: February 10, 2026

    Ambient Lead (Pb) concentrations from the national ambient air quality monitoring networks stored in the Air Quality System (AQS).

    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/catalog/search/resource/details.page?uuid=%7B623F90EA-03C6-4E3A-91E8-9325A617D975%7D
    https://edg.epa.gov/metadata/rest/document?id=%7B623F90EA-03C6-4E3A-91E8-9325A617D975%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 {623F90EA-03C6-4E3A-91E8-9325A617D975}
    Data First Published 2014-01-01
    Language en-US
    Data Last Modified 2015-09-23
    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 c4f00e58-e320-428a-8b96-aa59226b58aa
    Harvest Source Id 9c1c2b5b-7925-4ca2-a663-ca2131653db1
    Harvest Source Title EPA Non Geo Repository
    License https://edg.epa.gov/EPA_Data_License.html
    Old Spatial -180.0,-90.0,180.0,90.0
    Program Code 020:072
    Related Documents https://edg.epa.gov/metadata/catalog/search/resource/details.page?uuid=%7B623F90EA-03C6-4E3A-91E8-9325A617D975%7D, https://edg.epa.gov/metadata/rest/document?id=%7B623F90EA-03C6-4E3A-91E8-9325A617D975%7D
    Source Datajson Identifier True
    Source Hash 37a169bce9232e5b8ddfcfa502a52d09f0feee91c01bc225a0cca23e764af4bc
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -180.0, -90.0, -180.0, 90.0, 180.0, 90.0, 180.0, -90.0, -180.0, -90.0}

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