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    • This is a Non-Federal dataset covered by different Terms of Use than Data.gov.

    Washington State Air Quality

    Metadata Updated: November 22, 2025

    The links on this page provide access to the Washington State Department of Ecology's Air Monitoring Network, which tracks various air pollutants at more than six dozen sites statewide. Visitors can filter and export historic data using the Site Report tool, and gather traffic-specific air pollutant data from the Seattle and Tacoma monitoring sites linked below.

    Access & Use Information

    Public: This dataset is intended for public access and use. Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: No license information was provided.

    Downloads & Resources

    Dates

    Metadata Created Date November 10, 2020
    Metadata Updated Date November 22, 2025

    Metadata Source

    Harvested from WA JSON

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 10, 2020
    Metadata Updated Date November 22, 2025
    Publisher data.wa.gov
    Maintainer
    Identifier https://data.wa.gov/api/views/39v6-dykg
    Data First Published 2020-05-02
    Data Last Modified 2025-11-21
    Category Natural Resources & Environment
    Public Access Level public
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://data.wa.gov/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 38415b50-eace-4f2b-aa93-3f56613eaf8f
    Harvest Source Id 1c33d1cb-2f69-4f1b-835e-453790f38dc7
    Harvest Source Title WA JSON
    Homepage URL https://data.wa.gov/d/39v6-dykg
    Source Datajson Identifier True
    Source Hash e6c903a883a7c00211bfeb00009925e4e4a01c2a0f04d4163b7f0c4f9a0775d3
    Source Schema Version 1.1

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