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    • Consolidated Human Activities Database (CHAD)

    Metadata Updated: June 19, 2021

    The Consolidated Human Activity Database (CHAD) contains data obtained from human activity studies that were collected at city, state, and national levels. CHAD is intended to be an input file for exposure/intake dose modeling and/or statistical analysis.

    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=%7B25B6EC2E-51D5-4691-A4C6-8249268DBEB3%7D
    https://edg.epa.gov/metadata/catalog/search/resource/details.page?uuid=%7B25B6EC2E-51D5-4691-A4C6-8249268DBEB3%7D

    Dates

    Metadata Created Date December 4, 2020
    Metadata Updated Date June 19, 2021
    Data Update Frequency irregular

    Metadata Source

    Harvested from ORD-NERL-ESD Non-Geo Records

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date December 4, 2020
    Metadata Updated Date June 19, 2021
    Publisher U.S. EPA Office of Research and Development (ORD) - National Exposure Research Laboratory (NERL)
    Maintainer
    Identifier {25B6EC2E-51D5-4691-A4C6-8249268DBEB3}
    Data First Published 2014-01-01
    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/Public/ORD/NERL/metadata/ORD_NERL_ESD.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 4f2f361d-f195-4ea4-ba31-0cb303816f3b
    Harvest Source Id 52485a9f-6787-4c61-bae2-c8dcf06c84a3
    Harvest Source Title ORD-NERL-ESD Non-Geo Records
    Homepage URL https://edg.epa.gov/metadata/catalog/search/resource/details.page?uuid=%7B25B6EC2E-51D5-4691-A4C6-8249268DBEB3%7D
    License https://edg.epa.gov/EPA_Data_License.html
    Old Spatial -180.0,18.0,-66.0,72.0
    Program Code 020:072
    Related Documents https://edg.epa.gov/metadata/rest/document?id=%7B25B6EC2E-51D5-4691-A4C6-8249268DBEB3%7D, https://edg.epa.gov/metadata/catalog/search/resource/details.page?uuid=%7B25B6EC2E-51D5-4691-A4C6-8249268DBEB3%7D
    Source Datajson Identifier True
    Source Hash 86f748a615966f884fcfad47118d5917c5e06bf6
    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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