{
"DOI": {
"doi": "10.5066/p91oesmg",
"identifiers": [],
"creators": [
{
"name": "Woodward, Emily W.",
"nameType": "Personal",
"givenName": "Emily W.",
"familyName": "Woodward",
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"schemeUri": "https://orcid.org",
"nameIdentifier": "https://orcid.org/0000-0001-9196-1349",
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},
{
"name": "Hladik, Michelle L.",
"nameType": "Personal",
"givenName": "Michelle L.",
"familyName": "Hladik",
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},
{
"name": "Kolpin, Dana K.",
"nameType": "Personal",
"givenName": "Dana K.",
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"schemeUri": "https://orcid.org",
"nameIdentifier": "https://orcid.org/0000-0002-3529-6505",
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}
]
}
],
"titles": [
{
"title": "Nitrapyrin, 6-CPA, and herbicide concentrations in agricultural soils, subsurface drains, and corresponding streams in the Midwestern US"
}
],
"publisher": "U.S. Geological Survey",
"container": {},
"publicationYear": 2018,
"subjects": [
{
"subject": "Environmental Health,Water Quality"
}
],
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"dates": [
{
"date": "2018",
"dateType": "Issued"
}
],
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"descriptions": [
{
"description": "Nitrapyrin is a nitrification inhibitor that is co-applied with N-fertilizer in agroecosystems. Over the course of one year (March 2016 to June 2017), 192 water samples from seven streams across Iowa and Illinois were analyzed for nitrapyrin, its degradate 6-chloropicolinic acid (6-CPA), and three widely used herbicides acetochlor, atrazine, and metolachlor. Additional environmental samples were collected and analyzed in spring 2017: 63 water samples from eight subsurface drains, and 33 soil samples from a field in Iowa that received direct application of nitrapyrin (only for nitrapyrin and herbicides). Nitrapyrin was detected in all seven streams (56% detection) with concentrations ranging from 4 to 1,200 ng/L; 6-CPA was detected in six of the seven streams (13% detection) with concentrations ranging from 2 to 13 ng/L. Nitrapyrin was detected in only two of the eight subsurface drains and in 10% of drain samples (10% detection), and with concentrations ranginged from 3 to 12 ng/L; 6-CPA was detected in six of the eight subsurface drains and in (33% of drain samples withdetection), and concentrations ranginged from 2 to 6 ng/L. Nitrapyrin was detected in 67% of the soil samples collected, and concentrations ranged from 0.9 to 42 ng/g. Generally, all three herbicides were detected more frequently and at higher concentrations than nitrapyrin in the streams, subsurface drains, and soils. There are 3 csv datasets related to this data release. Please find in each of the child items the data and metadata.",
"descriptionType": "Abstract"
}
],
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"created": "2018-06-28T19:40:48Z",
"registered": "2018-06-28T19:40:49Z",
"published": null,
"updated": "2022-03-31T15:29:49Z"
}
}