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    • Concentrations of pesticides in silicone bands placed in National Wildlife Refuges of the Sacramento River Valley of California, 2023

    Metadata Updated: September 17, 2025

    To better understand pesticide exposure, silicone band samples were placed in five National Wildlife Refuges in the Sacramento Valley of Northern California. Silicone bands, used as aerial passive sampling collection devices, were flag-pinned half a meter off the ground and deployed for 28 days in the spring of 2023 (total of 176 bands). Upon retrieval, silicone bands were extracted via sonication with ethyl acetate and evaporated to 0.2 milliliters in acetonitrile. Samples were analyzed for 198 pesticides and degradates using both gas and liquid chromatography-tandem mass spectrometry. Overall, 36 pesticides and degradates were detected in the silicone bands.

    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-66c647c0d34e0338828ab1d7
    Data Last Modified 2024-09-26T00:00:00Z
    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 9acc36f9-7935-4a7e-b1d9-e42e861a7ae9
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial -122.1917, 39.0328, -121.7314, 39.9044
    Source Datajson Identifier True
    Source Hash 8bb56cbe941fb60249c439112bbd571d74af2caaecd141f76f3243ffcf670481
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -122.1917, 39.0328, -122.1917, 39.9044, -121.7314, 39.9044, -121.7314, 39.0328, -122.1917, 39.0328}

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