Occurrence of glyphosate and AMPA in an agricultural watershed from the southeastern region of Argentina
Glyphosate (GLY) and AMPA concentrations were determined in sandy soil profiles, during pre- and post-application events in two agricultural soybean fields (S1 and S2). Streamwater and sediment samples were also analyzed. Post-application sampling was carried out one month later from the event. Conc...
| Autores principales: | , , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
2018
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| Materias: | |
| Acceso en línea: | https://www.sciencedirect.com/science/article/pii/S0048969715304320 http://hdl.handle.net/20.500.12123/4013 https://doi.org/10.1016/j.scitotenv.2015.07.090 |
| _version_ | 1855035244895272960 |
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| author | Lupi, Leonardo Miglioranza, Karina Silvia Beatriz Aparicio, Virginia Carolina Marino, Damian Jose Gabriel Bedmar, Francisco Wunderlin, Daniel Alberto |
| author_browse | Aparicio, Virginia Carolina Bedmar, Francisco Lupi, Leonardo Marino, Damian Jose Gabriel Miglioranza, Karina Silvia Beatriz Wunderlin, Daniel Alberto |
| author_facet | Lupi, Leonardo Miglioranza, Karina Silvia Beatriz Aparicio, Virginia Carolina Marino, Damian Jose Gabriel Bedmar, Francisco Wunderlin, Daniel Alberto |
| author_sort | Lupi, Leonardo |
| collection | INTA Digital |
| description | Glyphosate (GLY) and AMPA concentrations were determined in sandy soil profiles, during pre- and post-application events in two agricultural soybean fields (S1 and S2). Streamwater and sediment samples were also analyzed. Post-application sampling was carried out one month later from the event. Concentrations of GLY + AMPA in surface soils (0–5 cm depth) during pre-application period showed values 20-fold higher (0.093–0.163 μg/g d.w.) than control area (0.005 μg/g d.w.). After application event soils showed markedly higher pesticide concentrations. A predominance of AMPA (80%) was observed in S1 (early application), while 34% in S2 for surface soils. GLY + AMPA concentrations decreased with depth and correlated strongly with organic carbon (r between 0.74 and 0.88, p < 0.05) and pH (r between − 0.81 and − 0.76, p < 0.001). The slight enrichment of pesticides observed from 25 cm depth to deeper layer, in addition to the alkaline pH along the profile, is of high concern about groundwater contamination. Sediments from pre-application period showed relatively lower pesticide levels (0.0053–0.0263 μg/g d.w.) than surface soil with a predominance of glyphosate, indicating a limited degradation. Levels of contaminants (mainly AMPA) in streamwater (ND-0.5 ng/mL) denote the low persistence of these compounds. However, a direct relationship in AMPA concentration was observed between sediment and streamwater. Despite the known relatively short half-life of glyphosate in soils, GLY + AMPA occurrence is registered in almost all matrices at different sampling times (pre- and post-application events). The physicochemical characteristics (organic carbon, texture, pH) and structure of soils and sediment in addition to the time elapsed from application determined the behavior of these contaminants in the environment. As a whole, the results warn us about vertical transport trough soil profile with the possibility of reaching groundwater. |
| format | info:ar-repo/semantics/artículo |
| id | INTA4013 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA40132018-12-04T15:32:49Z Occurrence of glyphosate and AMPA in an agricultural watershed from the southeastern region of Argentina Lupi, Leonardo Miglioranza, Karina Silvia Beatriz Aparicio, Virginia Carolina Marino, Damian Jose Gabriel Bedmar, Francisco Wunderlin, Daniel Alberto Glifosato Suelo Perfil del Suelo Cuencas Hidrográficas Polución Carbono Glyphosate Soil Soil Profiles Watersheds Pollution Carbon AMPA Carbono Orgánico Argentina Glyphosate (GLY) and AMPA concentrations were determined in sandy soil profiles, during pre- and post-application events in two agricultural soybean fields (S1 and S2). Streamwater and sediment samples were also analyzed. Post-application sampling was carried out one month later from the event. Concentrations of GLY + AMPA in surface soils (0–5 cm depth) during pre-application period showed values 20-fold higher (0.093–0.163 μg/g d.w.) than control area (0.005 μg/g d.w.). After application event soils showed markedly higher pesticide concentrations. A predominance of AMPA (80%) was observed in S1 (early application), while 34% in S2 for surface soils. GLY + AMPA concentrations decreased with depth and correlated strongly with organic carbon (r between 0.74 and 0.88, p < 0.05) and pH (r between − 0.81 and − 0.76, p < 0.001). The slight enrichment of pesticides observed from 25 cm depth to deeper layer, in addition to the alkaline pH along the profile, is of high concern about groundwater contamination. Sediments from pre-application period showed relatively lower pesticide levels (0.0053–0.0263 μg/g d.w.) than surface soil with a predominance of glyphosate, indicating a limited degradation. Levels of contaminants (mainly AMPA) in streamwater (ND-0.5 ng/mL) denote the low persistence of these compounds. However, a direct relationship in AMPA concentration was observed between sediment and streamwater. Despite the known relatively short half-life of glyphosate in soils, GLY + AMPA occurrence is registered in almost all matrices at different sampling times (pre- and post-application events). The physicochemical characteristics (organic carbon, texture, pH) and structure of soils and sediment in addition to the time elapsed from application determined the behavior of these contaminants in the environment. As a whole, the results warn us about vertical transport trough soil profile with the possibility of reaching groundwater. EEA Balcarce Fil: Lupi, Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Laboratorio de Ecotoxicología y Contaminación Ambiental. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras. Laboratorio de Ecotoxicología y Contaminación Ambiental; Argentina 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. Laboratorio de Ecotoxicología y Contaminación Ambiental. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras. Laboratorio de Ecotoxicología y Contaminación Ambiental; Argentina Fil: Aparicio, Virginia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina Fil: Marino, Damian Jose Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas; Argentina Fil: Bedmar, Francisco. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina Fil: Wunderlin, Daniel Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Ciencia y Tecnología de Alimentos Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Ciencia y Tecnología de Alimentos Córdoba; Argentina 2018-12-04T15:26:59Z 2018-12-04T15:26:59Z 2015-12-01 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://www.sciencedirect.com/science/article/pii/S0048969715304320 http://hdl.handle.net/20.500.12123/4013 0048-9697 1879-1026 https://doi.org/10.1016/j.scitotenv.2015.07.090 eng info:eu-repo/semantics/restrictedAccess application/pdf Elsevier Science of The Total Environment 536 : 687-694 (December 2015) |
| spellingShingle | Glifosato Suelo Perfil del Suelo Cuencas Hidrográficas Polución Carbono Glyphosate Soil Soil Profiles Watersheds Pollution Carbon AMPA Carbono Orgánico Argentina Lupi, Leonardo Miglioranza, Karina Silvia Beatriz Aparicio, Virginia Carolina Marino, Damian Jose Gabriel Bedmar, Francisco Wunderlin, Daniel Alberto Occurrence of glyphosate and AMPA in an agricultural watershed from the southeastern region of Argentina |
| title | Occurrence of glyphosate and AMPA in an agricultural watershed from the southeastern region of Argentina |
| title_full | Occurrence of glyphosate and AMPA in an agricultural watershed from the southeastern region of Argentina |
| title_fullStr | Occurrence of glyphosate and AMPA in an agricultural watershed from the southeastern region of Argentina |
| title_full_unstemmed | Occurrence of glyphosate and AMPA in an agricultural watershed from the southeastern region of Argentina |
| title_short | Occurrence of glyphosate and AMPA in an agricultural watershed from the southeastern region of Argentina |
| title_sort | occurrence of glyphosate and ampa in an agricultural watershed from the southeastern region of argentina |
| topic | Glifosato Suelo Perfil del Suelo Cuencas Hidrográficas Polución Carbono Glyphosate Soil Soil Profiles Watersheds Pollution Carbon AMPA Carbono Orgánico Argentina |
| url | https://www.sciencedirect.com/science/article/pii/S0048969715304320 http://hdl.handle.net/20.500.12123/4013 https://doi.org/10.1016/j.scitotenv.2015.07.090 |
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