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resumen

Resumen
The present study aimed to assess the ecological risk of 30 current-use agricultural pesticides and biocides in the soil, sediments and aquatic organisms of a mixed land-use basin located in the Depressed Pampas Region of Argentina. Risk Quotients (RQs) were used to evaluate the chronic risk in soil and aquatic organisms, while Toxic Units (TUs) were used to assess the acute risk in sediment-dwelling organisms and aquatic biota. Acetochlor, [ver mas...]
dc.contributor.authorPérez, Débora Jesabel
dc.contributor.authorIturburu, Fernando
dc.contributor.authorCalderon, Gabriela
dc.contributor.authorOyesqui, Lia Ana
dc.contributor.authorDe Geronimo, Eduardo
dc.contributor.authorAparicio, Virginia Carolina
dc.date.accessioned2020-09-21T11:45:33Z
dc.date.available2020-09-21T11:45:33Z
dc.date.issued2020-08
dc.identifier.issn0045-6535
dc.identifier.otherhttps://doi.org/10.1016/j.chemosphere.2020.128061
dc.identifier.urihttp://hdl.handle.net/20.500.12123/7926
dc.identifier.urihttps://www.sciencedirect.com/science/article/abs/pii/S0045653520322566
dc.description.abstractThe present study aimed to assess the ecological risk of 30 current-use agricultural pesticides and biocides in the soil, sediments and aquatic organisms of a mixed land-use basin located in the Depressed Pampas Region of Argentina. Risk Quotients (RQs) were used to evaluate the chronic risk in soil and aquatic organisms, while Toxic Units (TUs) were used to assess the acute risk in sediment-dwelling organisms and aquatic biota. Acetochlor, hydroxy-atrazine, glyphosate, AMPA, metolachlor, imidacloprid and tebuconazole were the only pesticide residues detected (>30%) and quantified in all the matrices evaluated. Glyphosate and AMPA showed the highest concentrations, being their mean and maximum levels 27.90–176.00 μg kg−1 and 270–712.50 μg kg−1 in soils, 8.28–32.0 μg kg−1 and 6.85–17.50 μg kg−1 in sediments, and 1.88–4.36 μg L−1 and 0.66–1.03 μg L−1 in surface water. The RQs in soils showed high chronic risk, mainly due to AMPA and imidacloprid. The TUs in sediments showed acute risk in dwelling organisms, mainly due to glyphosate and imidacloprid. RQs assessment showed a range of chronic risk levels according to the site/sampling event, with higher contribution of atrazine and its metabolites, and acetochlor, whereas TUs assessment showed no acute risk in aquatic biota. In contrast to Europe, in Argentina, there are no restrictions regarding the use of atrazine, acetochlor, imidacloprid and glyphosate to protect aquatic life. Thus, it is recommended that the current Argentine pesticide regulations should be modified to prevent ecological risk and protect ecosystems.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherElsevieres_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceChemosphere 263 : 128061 (January 2021)es_AR
dc.subjectImpacto Ambientales_AR
dc.subjectEnvironmentals Impacteng
dc.subjectSueloes_AR
dc.subjectSoileng
dc.subjectHerbicidases_AR
dc.subjectHerbicideseng
dc.subjectImidacloprides_AR
dc.subjectToxicidad de los Pesticidases_AR
dc.subjectPesticide Toxicityeng
dc.subjectArgentinaes_AR
dc.subject.otherRegión Pampeana
dc.titleEcological risk assessment of current-use pesticides and biocides in soils, sediments and surface water of a mixed land-use basin of the Pampas region, Argentinaes_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenEEA Balcarcees_AR
dc.description.filFil: Pérez, Débora J. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentinaes_AR
dc.description.filFil: Iturburu, Fernando G. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Mar del Plata. Instituto de Investigaciones Marinas y Costeras; Argentinaes_AR
dc.description.filFil: Calderon, Gabriela. Universidad Nacional de Mar del Plata. Instituto del Hábitat y del Ambiente; Argentinaes_AR
dc.description.filFil: Oyesqui, Lía Ana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Agencia de Extensión Rural Olavarría; Argentinaes_AR
dc.description.filFil: De Gerónimo, Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Aparicio, Virginia Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.subtypecientifico


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