Ecological risk assessment of pesticides in sediments of Pampean streams, Argentina
After their application in agricultural areas, pesticides are dispersed throughout the environment, causing contamination problems. In Argentina, the main promoter of transgenic biotechnology in the region, the total consumption of agrochemicals has increased significantly in recent years. Most chem...
| Autores principales: | , , , , , |
|---|---|
| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
2023
|
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/14403 https://www.sciencedirect.com/science/article/pii/S0045653522040917 https://doi.org/10.1016/j.chemosphere.2022.137598 |
| _version_ | 1855037110295199744 |
|---|---|
| author | Fernández San Juan, M.R. Lavarías, S.M.L. Aparicio, Virginia Carolina Larsen, K.E. Colman Lerner, J.E. Cortelezzi, A. |
| author_browse | Aparicio, Virginia Carolina Colman Lerner, J.E. Cortelezzi, A. Fernández San Juan, M.R. Larsen, K.E. Lavarías, S.M.L. |
| author_facet | Fernández San Juan, M.R. Lavarías, S.M.L. Aparicio, Virginia Carolina Larsen, K.E. Colman Lerner, J.E. Cortelezzi, A. |
| author_sort | Fernández San Juan, M.R. |
| collection | INTA Digital |
| description | After their application in agricultural areas, pesticides are dispersed throughout the environment, causing contamination problems. In Argentina, the main promoter of transgenic biotechnology in the region, the total consumption of agrochemicals has increased significantly in recent years. Most chemicals dumped near surface waters eventually end up in bottom sediments and can be toxic to the organisms that live there. However, published data on the mixing of pesticides in this compartment is still scarce. The objective of this work was to detect and quantify pesticide residues in the sediment of rural streams in the Pampas region and to carry out acute and chronic risk assessment in these aquatic ecosystems. The study area comprises the mountainous system of Tandilia, located in one of the most productive agricultural areas in the country. The concentration of atrazine, acetochlor, chlorpyrifos, cypermethrin, and 2,4-D in the sediment of four rural streams was determined in three different seasons, and the toxic units (TU) and the risk ratios (RQ) were calculated. All the compounds analyzed were detected in most of the sampling seasons and study sites, at concentrations higher than those established in the national and international quality guidelines for the protection of aquatic biota in surface waters and for human consumption. Chlorpyrifos, cypermethrin, and acetochlor were the main pesticides contributing to the TU and RQ values, representing a medium or high ecological risk in most of the sites. Therefore, the evaluation of these pesticides in the bottom sediments could be a decisive factor in assessing the risk to the aquatic environment. |
| format | info:ar-repo/semantics/artículo |
| id | INTA14403 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA144032023-04-04T21:29:39Z Ecological risk assessment of pesticides in sediments of Pampean streams, Argentina Fernández San Juan, M.R. Lavarías, S.M.L. Aparicio, Virginia Carolina Larsen, K.E. Colman Lerner, J.E. Cortelezzi, A. Sedimento Plaguicidas Clorpirifos Acetoclor Cipermetrin Contaminación Ecosistema Acuático Argentina Sediment Pesticides Chlorpyrifos Acetochlor Cypermethrin Contamination Aquatic Ecosystems After their application in agricultural areas, pesticides are dispersed throughout the environment, causing contamination problems. In Argentina, the main promoter of transgenic biotechnology in the region, the total consumption of agrochemicals has increased significantly in recent years. Most chemicals dumped near surface waters eventually end up in bottom sediments and can be toxic to the organisms that live there. However, published data on the mixing of pesticides in this compartment is still scarce. The objective of this work was to detect and quantify pesticide residues in the sediment of rural streams in the Pampas region and to carry out acute and chronic risk assessment in these aquatic ecosystems. The study area comprises the mountainous system of Tandilia, located in one of the most productive agricultural areas in the country. The concentration of atrazine, acetochlor, chlorpyrifos, cypermethrin, and 2,4-D in the sediment of four rural streams was determined in three different seasons, and the toxic units (TU) and the risk ratios (RQ) were calculated. All the compounds analyzed were detected in most of the sampling seasons and study sites, at concentrations higher than those established in the national and international quality guidelines for the protection of aquatic biota in surface waters and for human consumption. Chlorpyrifos, cypermethrin, and acetochlor were the main pesticides contributing to the TU and RQ values, representing a medium or high ecological risk in most of the sites. Therefore, the evaluation of these pesticides in the bottom sediments could be a decisive factor in assessing the risk to the aquatic environment. EEA Balcarce Fil: Fernández San Juan, M.R. Universidad Nacional del Centro de la Provincia de Buenos Aires. Instituto Multidisciplinario Sobre Ecosistemas y Desarrollo Sustentable; Argentina. Fil: Fernández San Juan, M.R. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Centro de la Provincia de Buenos Aires; Argentina. Comisión de Investigaciones Científicas; Argentina. Centro de Investigación Veterinaria de Tandil; Argentina. Fil: Lavarías, S.M.L. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina. Instituto de Limnología; Argentina. Fil: Aparicio, Virginia Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Fil: Aparicio, Virginia Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Larsen, K.E. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Centro de la Provincia de Buenos Aires; Argentina. Comisión de Investigaciones Científicas; Argentina. Centro de Investigación Veterinaria de Tandil; Argentina. Fil: Colman Lerner, J.E. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata; Argentina. Comisión de Investigaciones Científicas; Argentina.Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina. Fil: Cortelezzi, A. Universidad Nacional del Centro de la Provincia de Buenos Aires. Instituto Multidisciplinario Sobre Ecosistemas y Desarrollo Sustentable; Argentina. Fil: Cortelezzi, A. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. 2023-04-04T21:24:55Z 2023-04-04T21:24:55Z 2023-02 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/14403 https://www.sciencedirect.com/science/article/pii/S0045653522040917 1879-1298 (online) 0045-6535 (print) https://doi.org/10.1016/j.chemosphere.2022.137598 eng info:eu-repo/semantics/restrictedAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Elsevier Chemosphere 313 : 137598 (February 2023) |
| spellingShingle | Sedimento Plaguicidas Clorpirifos Acetoclor Cipermetrin Contaminación Ecosistema Acuático Argentina Sediment Pesticides Chlorpyrifos Acetochlor Cypermethrin Contamination Aquatic Ecosystems Fernández San Juan, M.R. Lavarías, S.M.L. Aparicio, Virginia Carolina Larsen, K.E. Colman Lerner, J.E. Cortelezzi, A. Ecological risk assessment of pesticides in sediments of Pampean streams, Argentina |
| title | Ecological risk assessment of pesticides in sediments of Pampean streams, Argentina |
| title_full | Ecological risk assessment of pesticides in sediments of Pampean streams, Argentina |
| title_fullStr | Ecological risk assessment of pesticides in sediments of Pampean streams, Argentina |
| title_full_unstemmed | Ecological risk assessment of pesticides in sediments of Pampean streams, Argentina |
| title_short | Ecological risk assessment of pesticides in sediments of Pampean streams, Argentina |
| title_sort | ecological risk assessment of pesticides in sediments of pampean streams argentina |
| topic | Sedimento Plaguicidas Clorpirifos Acetoclor Cipermetrin Contaminación Ecosistema Acuático Argentina Sediment Pesticides Chlorpyrifos Acetochlor Cypermethrin Contamination Aquatic Ecosystems |
| url | http://hdl.handle.net/20.500.12123/14403 https://www.sciencedirect.com/science/article/pii/S0045653522040917 https://doi.org/10.1016/j.chemosphere.2022.137598 |
| work_keys_str_mv | AT fernandezsanjuanmr ecologicalriskassessmentofpesticidesinsedimentsofpampeanstreamsargentina AT lavariassml ecologicalriskassessmentofpesticidesinsedimentsofpampeanstreamsargentina AT apariciovirginiacarolina ecologicalriskassessmentofpesticidesinsedimentsofpampeanstreamsargentina AT larsenke ecologicalriskassessmentofpesticidesinsedimentsofpampeanstreamsargentina AT colmanlernerje ecologicalriskassessmentofpesticidesinsedimentsofpampeanstreamsargentina AT cortelezzia ecologicalriskassessmentofpesticidesinsedimentsofpampeanstreamsargentina |