Occurrences of 29 pesticides in the Huangpu River, China: Highest ecological risk identified in Shanghai metropolitan area

Xu, Lei; Granger, Caroline O.; Dong, Huiyu; Mao, Yuanxiang; Duan, Shule; Li, Jin; Qiang, Zhimin

doi:10.1016/j.chemosphere.2020.126411

Cited by 78 publications

(27 citation statements)

References 55 publications

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“…[8][9][10] However, longterm and indiscriminate use of chemical synthetic fungicides has further and more serious disadvantages, such as environmental pollution, human health issues, and resistance strains of the pathogen. [11][12][13][14] In view of these problems, many scholars are exploring natural, safe, and effective potential antifungal substances that can replace synthetic fungicides. [15][16][17][18] In recent years, plant metabolites with antifungal properties have attracted increasing attention because of their natural biodegradation and low toxicity to humans and animals.…”

Section: Introductionmentioning

confidence: 99%

Unraveling the polypharmacology of a natural antifungal product, eugenol, against Rhizoctonia solani

Zhao

Wang

et al. 2021

Pest Management Science

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BACKGROUND: Rice sheath blight caused by Rhizoctonia solani is a devastating disease of rice in China. However, indiscriminate use of chemical fungicides applied to control the disease raise major environmental and food safety issues. Ecofriendly biocontrol alternatives are urgently needed. Eugenol, one of the main ingredients in Syzygium aromaticum, has attracted much attention owing to its antifungal properties. However, its mode of action is still not clear. Herein, the antifungal activity and mode of action of eugenol against R. solani were investigated.RESULTS: Results confirmed that the mycelia of R. solani treated with eugenol shrank and became dehydrated, the cytoplasmic wall separated, and the vacuoles and mitochondria decreased or dissolved. Moreover, we found that eugenol downregulated expression of C-4 methyl sterol oxidase, inhibited synthesis of ergosterol, increased membrane permeability and impaired the transportation of amino acids and glucose across the cell membrane. In addition, eugenol decreased the mitochondrial membrane potential and initiated an oxidative stress reaction by increasing reactive oxygen species and malondialdehyde, which together with membrane damage contribute to the antifungal activity of eugenol. Meanwhile, eugenol might inhibit R. solani by affecting oxidative phosphorylation and the tricarboxylic acid cycle (TCA cycle). CONCLUSION: In view of its multitarget properties against R. solani, eugenol provides an alternative approach to chemical control strategies against rice sheath blight.

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Section: Introductionmentioning

confidence: 99%

Unraveling the polypharmacology of a natural antifungal product, eugenol, against Rhizoctonia solani

Zhao

Wang

et al. 2021

Pest Management Science

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“…It is also frequently applied as a preservative for ber, leather, rubber, and polymerized materials as well as a preservative for construction materials such as building facades (Coutu et al, 2012). The presence of carbendazim in surface water and wastewater samples has been documented in Denmark (Bollmann et al, 2014), Germany (Launay et al, 2016), and China (Xu et al, 2020). Carbendazim concentrations in the range of 600-6000 ng/L have been recorded in particular areas of Spain, where this substance was widely used in agriculture (Masiá et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

Occurrence, human health, and ecotoxicological risk assessment of pesticides in surface waters of the River Nile’s Rosetta Branch, Egypt

Eissa

Al-Sisi

Ghanem

2021

Environ Sci Pollut Res

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In Egypt, the shortage of freshwater resources and their pollution constitutes a growing concern. Therefore, the objectives of this study were to (i) monitor the occurrence and spatiotemporal variations of 100 pesticides in surface water samples collected monthly (from July 2018 to June 2019) from El-Rahawy, Sabal, and Tala sampling sites along the Rosetta branch of the River Nile in Egypt, (ii) identify potential noncarcinogenic health risks for the local people through the lifetime consumption of contaminated drinking water, and (iii) perform an ecological risk assessment of aquatic organisms upon exposure to pesticides detected in surface waters based on the risk quotients (RQs) method. Of the 100 pesticides analyzed, 22 belonging to 11 chemical families were detected, and 75.5% of surface water samples were contaminated with one or more pesticide residues. The most frequently detected pesticide was malathion (57%), followed by chlorpyrifos (54%), atrazine (23%), and carbendazim (20%). Spatial distribution showed that the El-Rahawy site had the highest pesticide load (38.47 µg/L), and Sabal had the lowest (16.29 µg/L). Temporal variations revealed that the highest total pesticide concentrations were detected in summer (27.98 µg/L) compared to spring (23.16 µg/L), winter (19.18 µg/L), and autumn (11.85 µg/L). For non-carcinogenic risks of pesticides detected in surface water, the target hazard quotient (THQ) values were less than one. This implies that there is no potential human risk from exposure to drinking water at the sites under study. However, 13 pesticides presented high-risk quotients (RQ > 1), posing potential ecological risks to aquatic organisms.

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“…The concentration of target pesticides in water samples ranged from <LOQ (buprofezin) to 607.30 ng/L (carbendazim). The concentration of carbendazim is high because it widely used as a broad-spectrum fungicide in the cultivation of crops, such as rice, wheat and cotton [48]. The Dongjiang River basin is located in southern China with a total area of 35,636 km 2 .…”

Section: Chinamentioning

confidence: 99%

Pesticides in Drinking Water—A Review

Syafrudin

Kristanti

Yuniarto

et al. 2021

IJERPH

320

162

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The ubiquitous problem of pesticide in aquatic environment are receiving worldwide concern as pesticide tends to accumulate in the body of the aquatic organism and sediment soil, posing health risks to the human. Many pesticide formulations had introduced due to the rapid growth in the global pesticide market result from the wide use of pesticides in agricultural and non-agricultural sectors. The occurrence of pesticides in the water body is derived by the runoff from the agricultural field and industrial wastewater. Soluble pesticides were carried away by water molecules especially during the precipitation event by percolating downward into the soil layers and eventually reach surface waters and groundwater. Consequently, it degrades water quality and reduces the supply of clean water for potable water. Long-time exposure to the low concentration of pesticides had resulted in non-carcinogenic health risks. The conventional method of pesticide treatment processes encompasses coagulation-flocculation, adsorption, filtration and sedimentation, which rely on the phase transfer of pollutants. Those methods are often incurred with a relatively high operational cost and may cause secondary pollution such as sludge formation. Advanced oxidation processes (AOPs) are recognized as clean technologies for the treatment of water containing recalcitrant and bio-refractory pollutants such as pesticides. It has been adopted as recent water purification technology because of the thermodynamic viability and broad spectrum of applicability. This work provides a comprehensive review for occurrence of pesticide in the drinking water and its possible treatment.

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Occurrences of 29 pesticides in the Huangpu River, China: Highest ecological risk identified in Shanghai metropolitan area

Cited by 78 publications

References 55 publications

Unraveling the polypharmacology of a natural antifungal product, eugenol, against Rhizoctonia solani

Unraveling the polypharmacology of a natural antifungal product, eugenol, against Rhizoctonia solani

Occurrence, human health, and ecotoxicological risk assessment of pesticides in surface waters of the River Nile’s Rosetta Branch, Egypt

Pesticides in Drinking Water—A Review

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