Occurrence and levels of glyphosate and AMPA in shallow lakes from the Pampean and Patagonian regions of Argentina

Berman, Manuel Castro; Marino, Damián; Quiroga, María Victoria; Zagarese, Horacio

doi:10.1016/j.chemosphere.2018.02.103

Cited by 104 publications

(37 citation statements)

References 36 publications

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“…Systematic assessments of glyphosate presence in lakes and rivers in South America are scarce, despite the widespread use of this herbicide. In the present study, the percentage of 43% of samples in which glyphosate was detected was similar to the results of a survey of glyphosate in Pampean lakes (40%) (Berman et al, 2018), in which the samples were analyzed by high performance liquid chromatography and mass spectrometry (HPLC-MS) after derivatization with 9-fluorenylmethoxycarbonyl chloride. However, these results were higher than other glyphosate studies, such in surface waters of agricultural basins in Argentina, where the maximum percentage of surface water samples containing glyphosate reached 35% (Aparicio et al, 2013).…”

Section: Glyphosate In the Six Reservoirssupporting

confidence: 88%

“…Once again, the results found in the present study (between 0.0003 mg L -1 and 0.1684 mg L -1 ) were higher when compared with the other two mentioned researches in aquatic ecosystems in South America. The shallow lakes in Argentina showed glyphosate concentration values of up to 0.00452 mg L -1 (Berman et al, 2018), while Paraná River and tributaries presented values between 0-0.0012 mg L -1 (Ronco et al, 2016). However, areas under agricultural influence showed higher results than ours, such as in a wetland of a stream receiving flowing from a soybean field near Buenos Aires where glyphosate ranged from 0.1 to 0.7 mg L -1 (Peruzzo et al, 2008).…”

Section: Glyphosate In the Six Reservoirscontrasting

confidence: 64%

“…The detection of glyphosate throughout the year in the reservoirs of Ribeirão das Lajes and Santa Branca in both rainy and dry seasons, as well as in all other reservoirs, reflected the constant use of the herbicide in the drainage basins of these water bodies. Local processes, such as application by farmers to control undesirable weeds, would likely play important roles in the highly dynamic and complex processes of herbicide transport and degradation (Berman et al, 2018).…”

Section: Trophic Conditions and Glyphosatementioning

confidence: 99%

See 2 more Smart Citations

Assessing glyphosate concentrations in six reservoirs of Paraíba do Sul and Guandu River Basins in southeast Brazil

Cristofaro¹,

Branco²,

Rocha³

et al. 2021

Rev. ambiente água

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Glyphosate is a popular herbicide used worldwide, and several studies consider it to be an environmental hazard affecting human health. The present study aimed to detect glyphosate in six different reservoirs of Paraíba do Sul and Guandu River Basins in Southeast Brazil, used for multiple purposes, including fishery activities and domestic water supply. Ion chromatography was used to analyze the water samples, as it is a fast and environmentally friendly technique to detect glyphosate. Our results revealed that, despite differences related to trophic state, season of the year or distance to urban areas, glyphosate was detected in all reservoirs and in three of them with concentrations above the limit imposed by Brazilian legislation. Among the environmental variables studied, turbidity presented the highest correlation with glyphosate concentrations. The effect of rainfall increasing turbidity in the rivers reinforces the importance of draining waters from surrounding areas that transport glyphosate into the aquatic ecosystems. The detection of the herbicide in the various systems confirms the wide use of this compound in the drainage basins of the studied reservoirs and highlights the importance of water monitoring. Further, the results reveal how urgent and important it is to explore through laboratory experiments the pathways of degradation of this herbicide in tropical and subtropical aquatic environments together with its effects on flora and fauna.

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Section: Glyphosate In the Six Reservoirssupporting

confidence: 88%

Section: Glyphosate In the Six Reservoirscontrasting

confidence: 64%

Section: Trophic Conditions and Glyphosatementioning

confidence: 99%

See 1 more Smart Citation

Assessing glyphosate concentrations in six reservoirs of Paraíba do Sul and Guandu River Basins in southeast Brazil

Cristofaro¹,

Branco²,

Rocha³

et al. 2021

Rev. ambiente água

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“…It is well known that freshwater systems become contaminated either by direct spraying over water or indirectly via soil drift (Ensminger et al., 2013; Aparicio et al., 2015; Berman et al., 2018; Metcalfe et al., 2019). Algae and cyanobacteria from lakes, ponds and rivers share several metabolic pathways with vascular plants, suggesting that they can be similarly affected by herbicides (Ferrari et al., 2018).…”

Section: Introductionmentioning

confidence: 99%

Turbidity matters: differential effect of a 2,4-D formulation on the structure of microbial communities from clear and turbid freshwater systems

Lozano

Miranda

Vinocur

et al. 2019

Heliyon

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We evaluated the effect of AsiMax 50®, a commercial formulation of 2,4-D (2,4-dichlorophenoxyacetic acid), on the structure of both micro + nano phytoplankton (>2 μm; species composition and abundance) and cytometric populations (photosynthetic picoplankton (PPP, 0.2–2 μm), which included prokaryotic phycocyanin-rich picocyanobacteria (PC-Pcy), phycoerythrin-rich picocyanobacteria (PE-Pcy) and eukaryotic phototrophs (PEuk); and bacterioplankton (HB), heterotrophic bacteria), using a microcosms-based approach and a single 7-day exposure. Assays were performed on two different microbial assemblages sampled from freshwater bodies of two contrasting turbidity status: clear (chlorophyll a = 7.6 μgL -1 , turbidity = 1 NTU) and organic turbid systems (chlorophyll a = 25.0 μgL -1 , turbidity = 9 NTU). For each system, the herbicide was applied to 500 mL-Erlenmeyer flasks, at seven concentration levels of the active ingredient (a.i.): 0 (control = no addition), 0.02, 0.2, 2, 20, 200 and 2,000 mg a.i.L −1 . The impact of AsiMax 50® seemed to be greater in the turbid system. In this system, total abundance of living (live) micro + nano phytoplankton showed a significant increase at lower concentrations and data were fitted to a humped-shaped curve. For both clear and organic turbid systems, micro + nano phytoplankton decreased in species richness and abundance at higher herbicide concentrations. These results suggest that 2,4-D may mimic hormonal function. Some species, such as Ochromonas sp. and Chlamydomonas sp., showed different responses to herbicide exposure between water systems. In the turbid system, the increase in abundance of the PPP fraction observed at 7-d exposure was probably due to either an increase in PE-Pcy (thus suggesting the existence of auxin pathways) or a reduction in competitive pressure by micro + nano plankton. Our results provide some evidence of the importance of using community-scale approaches in ecotoxicological studies to predict changes in freshwater ecosystems exposed to a 2,4-D-based formulation. However, caution must be taken when extrapolating these effects to real scenarios, as assays were based on a laboratory microcosm experiment.

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“…Glyphosate concentrations in sediment samples, as already reported in a previous study (see Oliveira et al, 2019), were found in site 1 (11,7 µg Kg -1 ) and the concentrations in site 2 were below of the quantification limit (>LOQ). Concentrations of glyphosate have been reported in aquatic environments worldwide such as Argentina (Berman et al, 2018), United States (Tush et al, 2018), Germany (Skeff et al, 2018) and China (Yang et al, 2015). In Brazil, there is not a legislation that determines the maximum limit of glyphosate in sediments and in tissues of aquatic organisms.…”

Section: Resultsmentioning

confidence: 99%

Biochemical and genotoxicity assessment of a polluted urban river using the native fish Astyanax altiparanae Garutti & Britski (Teleostei, Characidae)

Calado¹,

Andrade²,

Garrido³

et al. 2020

Ecotoxicol. Environ. Contam.

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Agriculture residues and domestic effluents are contaminants that reach aquatic ecosystems leading to toxic effects to environment and human health. These contaminants impacting mainly developing countries, due to precarious treatment of effluents and lack of legislation in the use of pesticides. Perequê River (South of Brazil) is impacted by pesticides (mainly glyphosate) and domestic effluents. The aims of this study were to analyze the concentration of glyphosate in water and sediments of Perequê River; and to evaluate the sublethal effects of the river contamination in Astyanax altiparanae using biomarkers. A sampling of water, sediment and fish were carried out in Perequê River (November/2016). The samples were collected in two sites, site 1 (S1) that is located on agriculture area and water catchment point; and site 2 (S2) located on the area with a domestic effluents influence. Water and sediment samples were used to glyphosate quantification. Fish were collected and tissues (brain, muscle, liver) were used to biochemical and genetic biomarkers. Glyphosate were quantified in S1, which is impacted by agriculture. Alterations in the liver biomarkers were not observed between the sites. However, the decrease in the AChE activity was observed in the S2, showing that the mixture of contaminants (urban and agriculture contaminants) can lead to anticholinesterasic effects. The sublethal effects observed can be a threat of environmental and human health.

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Occurrence and levels of glyphosate and AMPA in shallow lakes from the Pampean and Patagonian regions of Argentina

Cited by 104 publications

References 36 publications

Assessing glyphosate concentrations in six reservoirs of Paraíba do Sul and Guandu River Basins in southeast Brazil

Assessing glyphosate concentrations in six reservoirs of Paraíba do Sul and Guandu River Basins in southeast Brazil

Turbidity matters: differential effect of a 2,4-D formulation on the structure of microbial communities from clear and turbid freshwater systems

Biochemical and genotoxicity assessment of a polluted urban river using the native fish Astyanax altiparanae Garutti & Britski (Teleostei, Characidae)

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