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dc.contributor.author
Hunt, Lisa  
dc.contributor.author
Bonetto, Carlos Alberto  
dc.contributor.author
Resh, Vincent H.  
dc.contributor.author
Forsin Buss, Daniel  
dc.contributor.author
Fanelli, Silvia Laura  
dc.contributor.author
Marrochi, María Natalia  
dc.contributor.author
Lydy, Michael J.  
dc.date.available
2017-05-11T14:30:55Z  
dc.date.issued
2016-01-11  
dc.identifier.citation
Hunt, Lisa; Bonetto, Carlos Alberto; Resh, Vincent H.; Forsin Buss, Daniel; Fanelli, Silvia Laura; et al.; Insecticide concentrations in stream sediments of soy production regions of South America; Elsevier Science; Science Of The Total Environment; 547; 11-1-2016; 114-124  
dc.identifier.issn
0048-9697  
dc.identifier.uri
http://hdl.handle.net/11336/16277  
dc.description.abstract
Concentrations of 17 insecticides were measured in sediments collected from 53 streams in soy production regions of South America (Argentina in 2011-2014, Paraguay and Brazil in 2013) during peak application periods. Although environmental regulations are quite different in each country, commonly used insecticides were detected at high frequencies in all regions. Maximum concentrations (and detection frequencies) for each sampling event ranged from: 1.2?7.4 ng/g dw chlorpyrifos (56-100%); 0.9?8.3 ng/g dw cypermethrin (20-100%); 0.42?16.6 ng/g dw lambda-cyhalothrin (60-100%); and 0.49?2.1 ng/g dw endosulfan (13-100%). Other pyrethroids were detected less frequently. Banned organochlorines were most frequently detected in Brazil. In all countries, cypermethrin and/or lambda-cyhalothrin toxic units (TUs), based on Hyalella azteca LC50 bioassays, were occasionally >0.5 (indicating likely acute toxicity), while TUs for other insecticides were <0.5. All samples with total insecticide TU > 1 were collected from streams with riparian buffer width < 20 m. A multiple regression analysis that included five landscape and habitat predictor variables for the Brazilian streams examined indicated that buffer width was the most important predictor variable in explaining total insecticide TU values. While Brazil and Paraguay require forested stream buffers, there were no such regulations in the Argentine pampas where buffer widths were smaller. Multiple insecticides were found in almost all stream sediment samples in intensive soy production regions, with pyrethroids most often occurring at acutely toxic concentrations, and greatest potential for insecticide toxicity in streams with minimum buffer width < 20m.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Elsevier Science  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Insecticides  
dc.subject
Pyretroids  
dc.subject
Soybean Production  
dc.subject
South American  
dc.subject.classification
Otras Ciencias de la Tierra y relacionadas con el Medio Ambiente  
dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Insecticide concentrations in stream sediments of soy production regions of South America  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2017-05-03T20:01:35Z  
dc.journal.volume
547  
dc.journal.pagination
114-124  
dc.journal.pais
Países Bajos  
dc.journal.ciudad
Amsterdam  
dc.description.fil
Fil: Hunt, Lisa. University Of California Berkeley; Estados Unidos  
dc.description.fil
Fil: Bonetto, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - la Plata. Instituto de Limnología "dr. Raul A. Ringuelet". Universidad Nacional de la Plata. Facultad de Cs.naturales y Museo. Instituto de Limnología ; Argentina  
dc.description.fil
Fil: Resh, Vincent H.. University Of California Berkeley; Estados Unidos  
dc.description.fil
Fil: Forsin Buss, Daniel. Instituto Oswaldo Cruz; Brasil  
dc.description.fil
Fil: Fanelli, Silvia Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - la Plata. Instituto de Limnología "dr. Raul A. Ringuelet". Universidad Nacional de la Plata. Facultad de Cs.naturales y Museo. Instituto de Limnología "dr. Raul A. Ringuelet"; Argentina  
dc.description.fil
Fil: Marrochi, María Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - la Plata. Instituto de Limnología "dr. Raul A. Ringuelet". Universidad Nacional de la Plata. Facultad de Cs.naturales y Museo. Instituto de Limnología ; Argentina  
dc.description.fil
Fil: Lydy, Michael J.. Southern Illinois University; Estados Unidos  
dc.journal.title
Science Of The Total Environment  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.scitotenv.2015.12.140  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0048969715312961