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    • Terrestrial Condition Assessment (TCA) Ozone Acute Exposure (Map Service)

    Metadata Updated: April 21, 2025

    The average of N100 which is the sum of hours over 100 ppb in a given month and captures peak events of high exposure or acute exposure. Updated through 2018. Data used are sourced from the EPA's Air Quality System Data Mart: https://aqs.epa.gov/aqsweb/airdata/download_files.html

    Access & Use Information

    Public: This dataset is intended for public access and use. License: Creative Commons Attribution

    Downloads & Resources

    Dates

    Metadata Created Date November 3, 2022
    Metadata Updated Date April 21, 2025

    Metadata Source

    Harvested from USDA JSON

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 3, 2022
    Metadata Updated Date April 21, 2025
    Publisher U.S. Forest Service
    Maintainer
    Identifier https://www.arcgis.com/home/item.html?id=f5bf073c5bd04de1a5d9830560b8df2d
    Data First Published 2021-01-21
    Data Last Modified 2022-08-29
    Category geospatial
    Public Access Level public
    Bureau Code 005:96
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    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 2b6979e8-2f43-488f-bd6c-fc38fa2f347f
    Harvest Source Id d3fafa34-0cb9-48f1-ab1d-5b5fdc783806
    Harvest Source Title USDA JSON
    Homepage URL https://data-usfs.hub.arcgis.com/documents/usfs::terrestrial-condition-assessment-tca-ozone-acute-exposure-map-service
    License https://creativecommons.org/licenses/by/4.0/
    Metadata Type geospatial
    Old Spatial -131.3620,6.8980,-65.6380,72.6220
    Program Code 005:059
    Progresscode onGoing
    Source Datajson Identifier True
    Source Hash b57c1d3ceb9f6f5ee8eef56490191d8b40be5f59773969c1aed5fe674c47cb43
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -131.3620, 6.8980, -131.3620, 72.6220, -65.6380, 72.6220, -65.6380, 6.8980, -131.3620, 6.8980}

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