High frequency monitoring of pesticides in runoff water to improve understanding of their transport and environmental impacts

Lefrancq, Marie; Jadas-Hécart, Alain; Jeunesse, Isabelle La; Landry, David; Payraudeau, Sylvain

doi:10.1016/j.scitotenv.2017.02.022

Cited by 137 publications

(72 citation statements)

References 56 publications

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“…Its concentration in surface water had reached 175–200 μg/L (Zubrod, Bundschuh, & Schulz, ). A survey conducted by Lefrancq et al assessed 20 runoff events from 2009 to 2012 at the outlet of a vineyard catchment in the Layon catchment in France and the results showed that the concentration of TEB could reach 357 μg/L (Lefrancq, Jadas‐Hecart, La Jeunesse, Landry, & Payraudeau, ). Evidence showed that the metabolites of TEB in agricultural workers ranged from 3 to 473 μg/L in urine (Mercadante, Polledri, Scurati, Moretto, & Fustinoni, ).…”

Section: Introductionmentioning

confidence: 99%

Transgenerational reproductive and developmental toxicity of tebuconazole in Caenorhabditis elegans

Liu

2020

J of Applied Toxicology

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The transgenerational reproductive and developmental toxicity of tebuconazole (TEB) in Caenorhabditis elegans was investigated over five generations (P0 − F4). Only parental C.elegans (P0) were exposed to TEB (0, 0.01, 0.1, 1, and 10 μg/L) for 24 h and the subsequent offspring (F1-F4) were grown under TEB-free conditions. TEB exposure caused dose-dependent reproductive defects and developmental impairments in C.elegans. In the P0 generation reproductive defects were observed such as:reduced brood size and embryo hatchability, prolonged generation time, retarded gonadal development, and slower germline proliferation, even at 0.01 μg/L, together with developmental toxicity with significant reduced body length and narrowed body width at 10 μg/L. Additionally, the brood size significantly reduced in F2, which began to recover from F3, but was still lower than the control in F4. The proportion of abnormalities increased significantly in F2 and reduced from F3, but was still higher than the control, suggesting that TEB could have cumulative potential and be passed to offspring through parental exposure. Furthermore, exposure to TEB (10 μg/L) in P0 significantly reduced the body length in F1, which began to recover from F2, and was the same level as the control in F4. There was a concentrationdependent increase in body width in F1-F4, with a significant increase only observed in F1 at 10 μg/L. Thus, parental exposure to TEB induced transgenerational defects in both reproduction and development, emphasizing the significance of considering bio-toxicity over multiple generations to conduct accurate assessment of environmental risks of toxicants. K E Y W O R D SCaenorhabditis elegans, parental exposure, reproductive and developmental toxicity, Tebuconazole, trans-generation

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Section: Introductionmentioning

confidence: 99%

Transgenerational reproductive and developmental toxicity of tebuconazole in Caenorhabditis elegans

Liu

2020

J of Applied Toxicology

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“…Fourteen surface runoff and tile drain discharge events were sampled over two years. The maximum concentration of insecticides in surface runoff and tile drain samples were found to be 0.46 and 0.16 Lefrancq et al (2017) The efficacy of constructed wetlands for the removal of nitrate and pesticides in the runoff generated from the agricultural watersheds was analyzed by Tournebize et al (2017). Average removal efficiency was 20-90% for pesticides and 40-90% for nitrate.…”

Section: Source Of Nonpoint Pollutionmentioning

confidence: 99%

Nonpoint Source Pollution

Islam

Lian²,

Ahmad³

et al. 2018

Water Environment Research

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A review of the literature published during year 2017 on topics relating to nonpoint source pollution (NPS) is presented. This article is written with a view to cater the need of nonpoint source pollution research and to summarize the new advancements in NPS control. Research developments on assessing, monitoring, and controlling the nonpoint source pollution are the main focus of this review. Future research topics related to NPS are also recommended.

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“…For instance, PPCPs inputs to water bodies mainly derive from wastewater treatment plants (WWTPs), which are not able to completely degrade the received pollutant load [7]. In contrast, pesticides reach watercourses through soil runoff [8,9] and contamination of groundwater [10], which is an important water supply for rivers and lakes.…”

Section: Introductionmentioning

confidence: 99%

Mapping the Photochemistry of European Mid-Latitudes Rivers: An Assessment of Their Ability to Photodegrade Contaminants

Carena

Vione

2020

Molecules

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The abiotic photochemical reactions that take place naturally in sunlit surface waters can degrade many contaminants that pose concern to water bodies for their potentially toxic and long-term effects. This works aims at assessing the ability of European rivers to photoproduce reactive transient intermediates, such as HO• radicals and the excited triplet states of chromophoric dissolved organic matter (3CDOM*), involved in pollutant degradation. A photochemical mapping of the steady-state concentrations of these transients was carried out by means of a suitable modeling tool, in the latitude belt between 40 and 50°N. Such a map allowed for the prediction of the photochemical lifetimes of the phenylurea herbicide isoproturon (mostly undergoing photodegradation upon reaction with HO• and especially 3CDOM*) across different European countries. For some rivers, a more extensive dataset was available spanning the years 1990–2002, which allowed for the computation of the steady-state concentration of the carbonate radicals (CO3•−). With these data, it was possible to assess the time trends of the photochemical half-lives of further contaminants (atrazine, ibuprofen, carbamazepine, and clofibric acid). The calculated lifetimes were in the range of days to weeks, which might or might not allow for efficient depollution depending on the river-water flow velocity.

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High frequency monitoring of pesticides in runoff water to improve understanding of their transport and environmental impacts

Cited by 137 publications

References 56 publications

Transgenerational reproductive and developmental toxicity of tebuconazole in Caenorhabditis elegans

Transgenerational reproductive and developmental toxicity of tebuconazole in Caenorhabditis elegans

Nonpoint Source Pollution

Mapping the Photochemistry of European Mid-Latitudes Rivers: An Assessment of Their Ability to Photodegrade Contaminants

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