Ecological risk assessment of pesticides in urban streams of the Brazilian Amazon

Rico, Andreu; Oliveira, Rhaul; Nunes, Gabriel; Rizzi, C.; Villa, Sara; Vizioli, Beatriz De Caroli; Montagner, Cassiana Carolina; Waichman, Andréa Viviana

doi:10.1016/j.chemosphere.2021.132821

Cited by 47 publications

(8 citation statements)

References 31 publications

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“…For herbicides, most exposure amounts were moderate, with the exception of metolachlor, atrazine, and terbuthylazine, which had concentrations up to 25-28 ng•L −1 in certain streams around Manaus. The samples taken from the Amazon River, the Negro River, one stream in Macapá (186 ng•L −1 ), and one stream in Belém (100 ng•L −1 ) all had the greatest bulk quantities of chlorpyrifos, while chlorpyrifos-methyl was discovered at relatively low concentrations [31]. To continue with pesticide pollution in Brazilian water bodies, it has to be mentioned that 97% of the studied municipalities displayed pesticide levels that were much higher (189.84 ppb) than the EU-set limits (0.5 ppb) [32].…”

Section: Spatial Distribution Of Common Pesticides In Water Bodiesmentioning

confidence: 99%

Pesticide Pollution: Detrimental Outcomes and Possible Mechanisms of Fish Exposure to Common Organophosphates and Triazines

Khatib

Rychter

Falfushynska

2022

JoX

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Pesticides are well known for their high levels of persistence and ubiquity in the environment, and because of their capacity to bioaccumulate and disrupt the food chain, they pose a risk to animals and humans. With a focus on organophosphate and triazine pesticides, the present review aims to describe the current state of knowledge regarding spatial distribution, bioaccumulation, and mode of action of frequently used pesticides. We discuss the processes by which pesticides and their active residues are accumulated and bioconcentrated in fish, as well as the toxic mechanisms involved, including biological redox activity, immunotoxicity, neuroendocrine disorders, and cytotoxicity, which is manifested in oxidative stress, lysosomal and mitochondrial damage, inflammation, and apoptosis/autophagy. We also explore potential research strategies to close the gaps in our understanding of the toxicity and environmental risk assessment of organophosphate and triazine pesticides.

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Section: Spatial Distribution Of Common Pesticides In Water Bodiesmentioning

confidence: 99%

Pesticide Pollution: Detrimental Outcomes and Possible Mechanisms of Fish Exposure to Common Organophosphates and Triazines

Khatib

Rychter

Falfushynska

2022

JoX

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“…When the PAF is less than 5%, the ecological risk is low or not significant. However, when the calculated PAF equals or exceeds 5% of the species, the ecological risk escalates significantly [ 37 ]. To calculate the

, that is, the PAF value,

is taken as the concentration value of the component and brought back to Formula (1).…”

Section: Methodsmentioning

confidence: 99%

Distribution Characteristics and Risk Assessment of 57 Pesticides in Farmland Soil and the Surrounding Water

Wang,

Liu

et al. 2024

Toxics

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To investigate the effect of pesticide use on surface water, the concentration and distribution characteristics of 57 pesticides and 3 degradation products were analyzed in the farmland soil and surface water in the Xingkai Lake area, including water from paddy fields, drainages and the Xingkai Lake, in Heilongjiang Province, China. Forty-three pesticides and three degradation products were detected in farmland soil. In dry field (corn and soybean field) soil, the main detected pesticides were atrazine and acetochlor with mean concentrations of 26.09 ng·g−1 and 49.08 ng·g−1, respectively. In paddy field soil, oxadiazon, mefenacet and chlorpyrifos were the main detected pesticides with mean concentrations of 14.32 ng·g−1, 78.60 ng·g−1 and 20.03 ng·g−1, respectively. In the surrounding water, including water from paddy fields, drainages and Xingkai Lake, the total concentrations of contaminants detected in the water samples ranged from 71.19 ng·L−1 to 10,145.76 ng·L−1. Of the three sampling periods, the mean concentration of contaminants in the water exhibited its peak during the vegetative period. In the analysis of the drainage water, the primary pesticides detected were atrazine, acetochlor and buprofezin with mean concentrations of 354.83 ng·L−1, 109.09 ng·L−1 and 254.56 ng·L−1, respectively. Atrazine, simetryn, buprofezin and isoprothiolane were the main pesticides detected in Xingkai Lake water, with the mean concentrations of 222.35 ng·L−1, 112.76 ng·L−1, 301.87 ng·L−1 and 138.02 ng·L−1, respectively. The concentrations of contaminants could be correlated with drainage, Da Xingkai Lake and Xiao Xingkai Lake water (ρ > 0.8) suggested that the source of these contaminants in drainage and Xingkai Lake water could be the same. The maximum potentially affected fraction (PAF) values of atrazine, chlorpyrifos and prometryn were higher than 5% in Xingkai Lake water, resulting in high ecological risks.

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“…where n is the number of substances in the mixture that provoke x% of the total effect, Ci is the concentration of the ith component in the mixture and PNECi refers to the concentration of the respective component that causes predicted no effect when applied singularly. Further details on PNEC derivation are in Rico and co-workers (Rico et al, 2021a). When the HI is lower than 1, the ecological risks can be classified as low or insignificant, while HI higher than 1 indicates possible negative effects on the aquatic community.…”

Section: Risk Characterisationmentioning

confidence: 99%

Levels and ecological risk of selected organic pollutants in the high-altitude alpine cryosphere - The Adamello-Brenta Natural Park (Italy) as a case study

Rizzi

Villa

Rossini

et al. 2022

Environmental Advances

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Ecological risk assessment of pesticides in urban streams of the Brazilian Amazon

Cited by 47 publications

References 31 publications

Pesticide Pollution: Detrimental Outcomes and Possible Mechanisms of Fish Exposure to Common Organophosphates and Triazines

Pesticide Pollution: Detrimental Outcomes and Possible Mechanisms of Fish Exposure to Common Organophosphates and Triazines

Distribution Characteristics and Risk Assessment of 57 Pesticides in Farmland Soil and the Surrounding Water

Levels and ecological risk of selected organic pollutants in the high-altitude alpine cryosphere - The Adamello-Brenta Natural Park (Italy) as a case study

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