Distribution of pesticides and some of their transformation products in a small lentic waterbody: Fish, water, and sediment contamination in an agricultural watershed

Slaby, Sylvain; Cor, François Le; Dufour, Vincent; Auger, L; Pasquini, Laure; Cardoso, Olivier; Curtet, Laurence; Baudoin, Jean-Marc; Wiest, Laure; Vulliet, Emmanuelle; Feidt, Cyril; Banas, Damien

doi:10.1016/j.envpol.2021.118403

Cited by 23 publications

(5 citation statements)

References 45 publications

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“…2,4-D, which was detected in almost all of the sampling sites, is one of the most used herbicides worldwide (Maggi et al 2019) and the second most used pesticide in Brazil, despite its high toxicity (Moraes 2019), which has led to its prohibition in some countries (Pan 2021). As for atrazine, it is the most frequently detected herbicide in Brazilian surface waters (Caldas et al 2019), and several other studies report the massive presence of this compound or its degradate hydroxyatrazine in the surface waters of the USA (Bradley et al 2017, Bradley et al 2020, Argentina (Iturburu et al 2019, Pérez et al 2021, Iran (Almasi et al 2020) and even in Europe (Slaby et al 2022), where atrazine was banned almost 20 years ago. However, in aquatic environments, atrazine tends to be adsorbed and immobilized by sediments due to high lipophilicity and poor water solubility (Qu et al 2017), which may explain its low detection frequency at our sampling sites.…”

Section: Discussionmentioning

confidence: 99%

Terrestrial protected areas do not fully shield their streams from exogenous stressors

Mollmann

Santos²,

Fernandes³

et al. 2022

Envir. Conserv.

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Summary Protected areas (PAs) represent a powerful refuge for maintaining and safeguarding biodiversity. Generally, PAs are delineated to protect terrestrial taxa, providing incidental protection to the aquatic ecosystems within their borders. Here, we compare water quality within PAs and non-PAs in southern Brazil, encompassing remnants of the Atlantic Forest biome, to assess whether PAs serve as a buffer from external pressures for aquatic ecosystems within their boundaries. In addition to physicochemical and microbiological water parameters, we analysed 147 pesticide and 31 pharmaceutical compounds in water samples from 33 sites within and outside PAs. The water quality did not differ between PAs and non-PAs but indicated clear pollution from sewage discharges. We found 19 pesticides and five pharmaceuticals in streams within the study area. We detected pesticides in all sampling sites, with the herbicide 2,4-dichlorophenoxyacetic acid present in 91% of them. Our data show that PAs are insufficient means to mitigate the impacts stemming from their catchments, and the running water that reaches their domains already shows signs of anthropogenic interference, which may affect aquatic biodiversity. Protection and management measures require consideration of the whole watershed to protect freshwater habitats and biota.

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Section: Discussionmentioning

confidence: 99%

Terrestrial protected areas do not fully shield their streams from exogenous stressors

Mollmann

Santos²,

Fernandes³

et al. 2022

Envir. Conserv.

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“…Mohr et al [7] reported the concentrations of MTCH in surface waters up to 100 µg/L in European countries. A more recent study [8] reported the highest concentration in surface water for metazachlor oxanilic acid, a metabolite of MTCH, to be 519.48 ± 56.52 ng/L. Quintana et al [9] reported MTCH concentrations in the range of 0.1-0.5 µg/L in the low estuary of the Llobregat River (Barcelona, Spain).…”

Section: Introductionmentioning

confidence: 98%

“…Quintana et al [9] reported MTCH concentrations in the range of 0.1-0.5 µg/L in the low estuary of the Llobregat River (Barcelona, Spain). Concerning the concentrations reported in fish tissues, values from 1.1 ng/g of MTCH [8] up to 300 ng/g [10] were measured. Lazartigues et al [10] established a biomagnification factor for European perch (Perca fluviatilis) and carp (C. carpio), in particular 3.7 ± 0.6 and 2.72 ± 0.1, respectively.…”

Section: Introductionmentioning

confidence: 99%

Pesticides and Parabens Contaminating Aquatic Environment: Acute and Sub-Chronic Toxicity towards Early-Life Stages of Freshwater Fish and Amphibians

Medkova

Hollerová

Riesova

et al. 2023

Toxics

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Pesticides and personal care products are two very important groups of contaminants posing a threat to the aquatic environment and the organisms living in it.. Therefore, this study aimed to describe the effects of widely used pesticides and parabens on aquatic non-target biota such as fish (using model organisms Danio rerio and Cyprinus carpio) and amphibians (using model organism Xenopus laevis) using a wide range of endpoints. The first part of the experiment was focused on the embryonal toxicity of three widely used pesticides (metazachlor, prochloraz, and 4-chloro-2-methyl phenoxy acetic acid) and three parabens (methylparaben, propylparaben, and butylparaben) with D. rerio, C. carpio, and X. laevis embryos. An emphasis was placed on using mostly sub-lethal concentrations that are partially relevant to the environmental concentrations of the substances studied. In the second part of the study, an embryo-larval toxicity test with C. carpio was carried out with prochloraz using concentrations 0.1, 1, 10, 100, and 1000 µg/L. The results of both parts of the study show that even the low, environmentally relevant concentrations of the chemicals tested are often able to affect the expression of genes that play either a prominent role in detoxification and sex hormone production or indicate cell stress or, in case of prochloraz, to induce genotoxicity.

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“…Fish are utilized as bioindicators in case of high pollution in the water bodies due to their low digestion capacity for the accumulated pesticides 5 – 7 . Pesticides and toxicants can accumulate in the fish's body through the gills, skin, and intestines 8 .…”

Section: Introductionmentioning

confidence: 99%

Water quality, human health risk, and pesticides accumulation in African catfish and Nile tilapia from the Kitchener Drain-Egypt

Metwally,

Khalafallah,

Dawood

2023

Sci Rep

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Pesticides are toxic and could negatively impact humans and the ecosystem. The Kitchener Drain is among the longest drains in Egypt and carries a wide range of wastewater from the agriculture sector, which contains pesticides and may pollute the ecosystem. Thus, water quality, human health risk, and pesticide accumulation in African catfish and Nile tilapia from the Kitchener Drain-Egypt. The water and fish samples were collected from Kitchener Drain in Kafr Elsheikh Governorate, Egypt, during the four seasons. The results indicated that heptachlor and diazinon were undetected during the four seasons. However, endosulfan, chlorpyrifos, and dicofol were detected in winter and autumn. Only p,p′-DDT was detected during spring. Endosulfan, heptachlor, and aldrin were detected in Nile tilapia during winter. Only heptachlor and aldrin were detected during spring. Endosulfan, heptachlor, dicofol, p,p′-DDT, chlorpyrifos, and diazinon were detected in the autumn season. In summer, dicofol and p,p′-DDT were detected, while endosulfan, heptachlor p,p′-DDT, aldrin, chlorpyrifos, and diazinon were not detected. In African catfish, endosulfan, heptachlor, dicofol, and p,p′-DDT were detected during winter, while chlorpyrifos, aldrin, and chlorpyrifos, aldrin, and diazinon were not detected. In the spring season, endosulfan, heptachlor, and aldrin were detected. Endosulfan, heptachlor, dicofol, p,p′-DDT, aldrin, chlorpyrifos, and diazinon were detected in the autumn season. Similarly, in the summer season, endosulfan, heptachlor, dicofol, p,p′-DDT, aldrin, chlorpyrifos, and diazinon were detected. The sequence of estimated daily intake (EDI) in Nile tilapia during the four seasons is heptachlor > endosulfan > dicofol > p,p′-DDT > aldrin > diazinon > chlorpyrifos. The sequence of EDI in African catfish during the four seasons is endosulfan > p,p′-DDT > heptachlor > aldrin > dicofol > diazinon > chlorpyrifos. In conclusion, the results confirmed the absence of a hazard index for consuming Nile tilapia and African catfish collected from the Kitchener drain.

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Distribution of pesticides and some of their transformation products in a small lentic waterbody: Fish, water, and sediment contamination in an agricultural watershed

Cited by 23 publications

References 45 publications

Terrestrial protected areas do not fully shield their streams from exogenous stressors

Terrestrial protected areas do not fully shield their streams from exogenous stressors

Pesticides and Parabens Contaminating Aquatic Environment: Acute and Sub-Chronic Toxicity towards Early-Life Stages of Freshwater Fish and Amphibians

Water quality, human health risk, and pesticides accumulation in African catfish and Nile tilapia from the Kitchener Drain-Egypt

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