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dc.contributor.author
Pérez, Débora Jesabel
dc.contributor.author
Okada, Elena
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de Gerónimo, Eduardo
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Menone, Mirta Lujan
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Aparicio, Virginia Carolina
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Costa, Jose Luis
dc.date.available
2018-08-03T18:12:01Z
dc.date.issued
2017-12
dc.identifier.citation
Pérez, Débora Jesabel; Okada, Elena; de Gerónimo, Eduardo; Menone, Mirta Lujan; Aparicio, Virginia Carolina; et al.; Spatial and temporal trends and flow dynamics of glyphosate and other pesticides within an agricultural watershed in Argentina; Society of Environmental Toxicology and Chemistry; Environmental Toxicology and Chemistry; 36; 12; 12-2017; 3206-3216
dc.identifier.issn
0730-7268
dc.identifier.uri
http://hdl.handle.net/11336/54101
dc.description.abstract
In the present study, we evaluated the spatial and temporal trends of current-use pesticides in surface water and sediments as well as their relationship with hydrological stream dynamics within the agricultural watershed of El Crespo stream (Buenos Aires Province, Argentina). We sampled 2 contrasting sites: site 1 (upstream), surrounded by agricultural lands, and site 2 (downstream), surrounded by natural grasslands. Most of the applied pesticides (glyphosate, 2,4-D, atrazine, tebuconazole, and imidacloprid) were detected at high frequencies in surface water samples at both sites. However, only glyphosate and aminomethylphosphonic acid (AMPA) were present at high concentrations and had a significant spatial–temporal trend. The highest concentrations were found during spring 2014 at site 1, in association with the intense rains that occurred in that season. The fact that glyphosate and AMPA concentrations were higher than the rest of the studied compounds is closely related to the land use within the watershed, as glyphosate was the most applied herbicide during the fallow period of glyphosate-resistant crops (soybean, maize). The pesticide mixture had a significant spatial–temporal trend, reaching the highest levels during storm flow events in spring 2014. The intensive rains in spring 2014 could be the main factor influencing stream hydrology and pesticide behavior at El Crespo watershed. The estimated annual pesticide losses were 3.11 g/ha at site 1 and 0.72 g/ha at site 2. This result indicates that an attenuation process could be decreasing pesticide loads during downstream transport from site 1 to site 2.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Society of Environmental Toxicology and Chemistry
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Glyphosate
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Pesticide Loss
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Pesticide Mixture
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Stream Discharge
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Surface Water
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Agricultura
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Agricultura, Silvicultura y Pesca
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CIENCIAS AGRÍCOLAS
dc.title
Spatial and temporal trends and flow dynamics of glyphosate and other pesticides within an agricultural watershed in Argentina
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-07-23T18:01:01Z
dc.journal.volume
36
dc.journal.number
12
dc.journal.pagination
3206-3216
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Pérez, Débora Jesabel. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Okada, Elena. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: de Gerónimo, Eduardo. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Menone, Mirta Lujan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
dc.description.fil
Fil: Aparicio, Virginia Carolina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Costa, Jose Luis. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce; Argentina
dc.journal.title
Environmental Toxicology and Chemistry
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/etc.3897
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://setac.onlinelibrary.wiley.com/doi/abs/10.1002/etc.3897
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