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    • National Atmospheric Deposition Program Pollen Study Data for 2021 Pollen Season

    Metadata Updated: September 17, 2025

    Pollen was measured in ambient air by several methods and in wet atmospheric deposition samples at three monitoring sites in the National Atmospheric Deposition Program (NADP) National Trends Network. A method for counting pollen on filters was developed and provided pollen counts for NADP atmospheric wet-deposition samples and high-volume ambient air samplers (HVAS) for comparison with co-located traditional microscopy and PollenSense sensor counting methods during the 2021 pollen season. Air and precipitation samples were collected by the NADP and analyzed by the Wisconsin State Laboratory of Hygiene, in Madison, Wisconsin and Aerobiology Research Laboratories (Canada). Daily data were obtained from online summaries released by the National Allergy Bureau. Ten-minute records of pollen concentration measurements were obtained from the PollenSense network. Use of trade of firm names is for description purposes only and does not constitute endorsement by the U.S. government or the University of Wisconsin.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Created Date September 14, 2025
    Metadata Updated Date September 17, 2025

    Metadata Source

    Harvested from DOI USGS DCAT-US

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date September 14, 2025
    Metadata Updated Date September 17, 2025
    Publisher U.S. Geological Survey
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/usgs-62aa03b2d34ec53d277114de
    Data Last Modified 2022-08-02T00:00:00Z
    Category geospatial
    Public Access Level public
    Bureau Code 010:12
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://ddi.doi.gov/usgs-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 9ed7a91a-d444-4e8f-bfce-9da9cb2cf411
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial -111.891, 35.9709, -79.0933, 43.089
    Source Datajson Identifier True
    Source Hash b97f5f8d4b5dfcc5f4a884e454b5d36239e7370007309937bad5095b340d6581
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -111.891, 35.9709, -111.891, 43.089, -79.0933, 43.089, -79.0933, 35.9709, -111.891, 35.9709}

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