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dc.contributor.author
Silva Barni, María Florencia
dc.contributor.author
Smedes, Foppe
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Fillmann, Gilberto
dc.contributor.author
Miglioranza, Karina Silvia Beatriz
dc.date.available
2019-08-20T21:20:47Z
dc.date.issued
2019-02
dc.identifier.citation
Silva Barni, María Florencia; Smedes, Foppe; Fillmann, Gilberto; Miglioranza, Karina Silvia Beatriz; Passive sampling of pesticides and polychlorinated biphenyls along the Quequén Grande River watershed, Argentina; Society of Environmental Toxicology and Chemistry; Environmental Toxicology and Chemistry; 38; 2; 2-2019; 340-349
dc.identifier.issn
0730-7268
dc.identifier.uri
http://hdl.handle.net/11336/81885
dc.description.abstract
Water monitoring is of great importance, especially for water bodies in agricultural or industrial areas. Grab sampling is a widely used technique for aquatic monitoring but represents only a snapshot of the contaminant levels at a specific point in time. Passive sampling, on the other hand, is an integrative technique that provides an average concentration of contaminants representative of its deployment period. Thus, the current contamination by organochlorine pesticides, polychlorinated biphenyls (PCBs), and some currently used pesticides was assessed along the Quequén Grande River watershed (Argentina) using the integrative silicone rubber passive sampling technique in a year-long study. Silicone rubber samplers were deployed at 6 sampling sites selected according to different land uses (agricultural–livestock production, agricultural and urban activities) during 3 periods in 2014 and 2015. The organochlorine pesticides were dominated by endosulfan (sum of α-, β-endosulfan, endosulfan sulfate = 0.15–23.4 ng/L). The highest endosulfan levels were registered during the pesticide application period (December–March), exceeding the international water quality guidelines for protecting freshwater biota (3 ng/L). Compared with previous reports, no reductions in endosulfan levels were observed at the Quequén Grande River watershed. These results would suggest the illegal use of remaining stocks because water sampling was carried out after endosulfan was banned in Argentina. Chlorpyrifos was the second major pesticide found in water (0.02–4.3 ng/L), associated with its widespread usage on soybean crops. A reduction in levels of legacy pesticides (heptachlors, DDTs, dieldrin, and chlordanes) was evident compared with previous reports from 2007. Levels of PCBs were very low, indicating that probably only minor diffuse sources were still available along the Quequén Grande River watershed.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Society of Environmental Toxicology and Chemistry
dc.rights
info:eu-repo/semantics/embargoedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Argentina
dc.subject
Passive Sampler
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Pesticides
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Polychlorinated Biphenyls
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Watershed Analysis
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Meteorología y Ciencias Atmosféricas
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
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CIENCIAS NATURALES Y EXACTAS
dc.title
Passive sampling of pesticides and polychlorinated biphenyls along the Quequén Grande River watershed, 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
2019-08-01T20:10:59Z
dc.journal.volume
38
dc.journal.number
2
dc.journal.pagination
340-349
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Silva Barni, María Florencia. 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 Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
dc.description.fil
Fil: Smedes, Foppe. Masaryk University; República Checa
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Fil: Fillmann, Gilberto. Universidade Federal Do Rio Grande; Brasil. Masaryk University; República Checa
dc.description.fil
Fil: Miglioranza, Karina Silvia Beatriz. 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 Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
dc.journal.title
Environmental Toxicology and Chemistry
dc.rights.embargoDate
2019-10-01
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://setac.onlinelibrary.wiley.com/doi/abs/10.1002/etc.4325
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/etc.4325
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