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    • Nitrapyrin, 6-CPA, and Herbicide Concentrations in Subsurface Drains in the Midwestern US (April 2017 to June 2017)

    Metadata Updated: July 6, 2024

    Nitrapyrin, a nitrification inhibitor, 6-CPA, a nitrapyrin degradate, and three co-applied herbicides (acetochlor, atrazine, and metolachlor) were measured in surface drains from eights sites in Illinois. Water samples were collected from April to June 2017. The compounds studied are applied to corn, Illinois is one of the largest corn producing states in the U.S. Water samples (1-L) were collected in amber glass bottles using a grab or depth weighted approach. Water samples were filtered (0.7 micrometers), extracted via solid phase extraction (Oasis® MAX cartridge), and analyzed (nitrapyrin and herbicides by gas chromatography with mass-spectrometry; 6-CPA by liquid chromatography tandem mass-spectrometry).

    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.

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    Dates

    Metadata Created Date June 1, 2023
    Metadata Updated Date July 6, 2024

    Metadata Source

    Harvested from DOI EDI

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date June 1, 2023
    Metadata Updated Date July 6, 2024
    Publisher U.S. Geological Survey
    Maintainer
    @Id http://datainventory.doi.gov/id/dataset/3ec835569fd8e61d49648d72fa9baac4
    Identifier USGS:5b04767ae4b0d8682b963581
    Data Last Modified 20220331
    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://datainventory.doi.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 b67994d3-13ba-4035-a0e0-03c3e2f747b8
    Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
    Harvest Source Title DOI EDI
    Metadata Type geospatial
    Old Spatial -91.104125976469,37.27370464477,-87.324829101621,42.560850588313
    Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
    Source Datajson Identifier True
    Source Hash 2ed4e511a55ade7b291d02fd2e7db1f6e18a0ffc7ad43f410f81674559d56cdc
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -91.104125976469, 37.27370464477, -91.104125976469, 42.560850588313, -87.324829101621, 42.560850588313, -87.324829101621, 37.27370464477, -91.104125976469, 37.27370464477}

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