Glyphosate and AMPA, “pseudo-persistent” pollutants under realworld agricultural management practices in the Mesopotamic Pampas agroecosystem, Argentina

In the Pampas, public concern has strongly risen because of the intensive use of glyphosate for weed control and fallow associated with biotech crops. The present study was aimed to evaluate the occurrence and concentration of the herbicide and its main metabolite (AMPA) in soil and other environmen...

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Autores principales: Primost, Jezabel Elena, Marino, Damián José Gabriel, Aparicio, Virginia C., Costa, José Luis, Carriquiriborde, Pedro
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Química
Pesticides
Biotech-crops
Pampas
Soil
Sediments
Groundwater
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/154724
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-154724
record_format dspace
spelling I19-R120-10915-1547242023-06-27T20:07:06Z http://sedici.unlp.edu.ar/handle/10915/154724 issn:0269-7491 Glyphosate and AMPA, “pseudo-persistent” pollutants under realworld agricultural management practices in the Mesopotamic Pampas agroecosystem, Argentina Primost, Jezabel Elena Marino, Damián José Gabriel Aparicio, Virginia C. Costa, José Luis Carriquiriborde, Pedro 2017 2023-06-27T17:02:54Z en Química Pesticides Biotech-crops Pampas Soil Sediments Groundwater In the Pampas, public concern has strongly risen because of the intensive use of glyphosate for weed control and fallow associated with biotech crops. The present study was aimed to evaluate the occurrence and concentration of the herbicide and its main metabolite (AMPA) in soil and other environmental compartments of the mentioned agroecosystem, including groundwater, in relation to real-world agricultural management practices in the region. Occurrence was almost ubiquitous in solid matrices (83 e100%) with maximum concentrations among the higher reported in the world (soil: 8105 and 38939; sediment: 3294 and 7219; suspended particulate matter (SPM): 584 and 475 mg/kg of glyphosate and AMPA). Lower detection frequency was observed in surface water (27e55%) with maximum concentrations in whole water of 1.80 and 1.90 mg/L of glyphosate and AMPA, indicating that SPM analysis would be more sensitive for detection in the aquatic ecosystem. No detectable concentrations of glyphosate or AMPA were observed in groundwater. Glyphosate soil concentrations were better correlated with the total cumulative dose and total number of applications than the last spraying event dose, and an increment of 1 mg glyphosate/kg soil every 5 spraying events was estimated. Findings allow to infer that, under current practices, application rates are higher than dissipation rates. Hence, glyphosate and AMPA should be considered “pseudo-persistent” pollutants and a revisions of management procedures, monitoring programs, and ecological risk for soil and sediments should be also recommended. Centro de Investigaciones del Medioambiente Instituto Nacional de Tecnología Agropecuaria Articulo Articulo http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) application/pdf 771-779
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Pesticides
Biotech-crops
Pampas
Soil
Sediments
Groundwater
spellingShingle Química
Pesticides
Biotech-crops
Pampas
Soil
Sediments
Groundwater
Primost, Jezabel Elena
Marino, Damián José Gabriel
Aparicio, Virginia C.
Costa, José Luis
Carriquiriborde, Pedro
Glyphosate and AMPA, “pseudo-persistent” pollutants under realworld agricultural management practices in the Mesopotamic Pampas agroecosystem, Argentina
topic_facet Química
Pesticides
Biotech-crops
Pampas
Soil
Sediments
Groundwater
description In the Pampas, public concern has strongly risen because of the intensive use of glyphosate for weed control and fallow associated with biotech crops. The present study was aimed to evaluate the occurrence and concentration of the herbicide and its main metabolite (AMPA) in soil and other environmental compartments of the mentioned agroecosystem, including groundwater, in relation to real-world agricultural management practices in the region. Occurrence was almost ubiquitous in solid matrices (83 e100%) with maximum concentrations among the higher reported in the world (soil: 8105 and 38939; sediment: 3294 and 7219; suspended particulate matter (SPM): 584 and 475 mg/kg of glyphosate and AMPA). Lower detection frequency was observed in surface water (27e55%) with maximum concentrations in whole water of 1.80 and 1.90 mg/L of glyphosate and AMPA, indicating that SPM analysis would be more sensitive for detection in the aquatic ecosystem. No detectable concentrations of glyphosate or AMPA were observed in groundwater. Glyphosate soil concentrations were better correlated with the total cumulative dose and total number of applications than the last spraying event dose, and an increment of 1 mg glyphosate/kg soil every 5 spraying events was estimated. Findings allow to infer that, under current practices, application rates are higher than dissipation rates. Hence, glyphosate and AMPA should be considered “pseudo-persistent” pollutants and a revisions of management procedures, monitoring programs, and ecological risk for soil and sediments should be also recommended.
format Articulo
Articulo
author Primost, Jezabel Elena
Marino, Damián José Gabriel
Aparicio, Virginia C.
Costa, José Luis
Carriquiriborde, Pedro
author_facet Primost, Jezabel Elena
Marino, Damián José Gabriel
Aparicio, Virginia C.
Costa, José Luis
Carriquiriborde, Pedro
author_sort Primost, Jezabel Elena
title Glyphosate and AMPA, “pseudo-persistent” pollutants under realworld agricultural management practices in the Mesopotamic Pampas agroecosystem, Argentina
title_short Glyphosate and AMPA, “pseudo-persistent” pollutants under realworld agricultural management practices in the Mesopotamic Pampas agroecosystem, Argentina
title_full Glyphosate and AMPA, “pseudo-persistent” pollutants under realworld agricultural management practices in the Mesopotamic Pampas agroecosystem, Argentina
title_fullStr Glyphosate and AMPA, “pseudo-persistent” pollutants under realworld agricultural management practices in the Mesopotamic Pampas agroecosystem, Argentina
title_full_unstemmed Glyphosate and AMPA, “pseudo-persistent” pollutants under realworld agricultural management practices in the Mesopotamic Pampas agroecosystem, Argentina
title_sort glyphosate and ampa, “pseudo-persistent” pollutants under realworld agricultural management practices in the mesopotamic pampas agroecosystem, argentina
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/154724
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