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    • Polychlorinated biphenyls (PCB) and geochemical concentrations of source and target sediment and sediment cores and PCB concentrations in sediment porewater collected from the Back River watershed, Maryland 2023

    Metadata Updated: September 17, 2025

    These data were collected as part of a study that used a sediment fingerprinting model to better understand sources of PCB-contaminated suspended sediments within stormflow in the Back River watershed. This metadata record contains 4 tables of data used to model and assess the source of storm sediment collected within the Back River watershed in Maryland in 2023. Included in the dataset are analytical results from sediment samples collected from the landscape, in stream banks, during storms using passive samplers, and intact cores, and analyzed for (1) PCB, (2) elemental metals and carbon content, and (3) grain size. Also included are calculated PCB concentrations in porewater using sediment concentration from storm and core samples.

    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 12, 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 12, 2025
    Metadata Updated Date September 17, 2025
    Publisher U.S. Geological Survey
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/usgs-66e7a9d0d34e0606a9db9555
    Data Last Modified 2025-06-30T00:00:00Z
    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 b79e0143-08ee-4a38-aeb6-01a1d83738c5
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial -76.6166, 39.2982, -76.4911, 39.4172
    Source Datajson Identifier True
    Source Hash f7efc1d18272ed6942222341b7e019ac2ed1d962f72184bca5b3f8598656e043
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -76.6166, 39.2982, -76.6166, 39.4172, -76.4911, 39.4172, -76.4911, 39.2982, -76.6166, 39.2982}

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