Distribution of pesticide residues in agricultural topsoil of the Huangshui catchment, Qinghai Tibet Plateau

Zhou, Yang; Jing, Jing; Yu, Ruyue; Zhang, Xiaochen; Gou, Yuxuan; Tang, Huaizhi; Zhang, Hongyan; Huang, Yuanfang

doi:10.1007/s11356-022-22704-7

Cited by 10 publications

(7 citation statements)

References 49 publications

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“…Consistent with other studies, children are more sensitive to the health risks of these pollutants [ 18 ]. Therefore, the local authorities should make their best efforts to reduce OCPs contamination in the environment, and should consider applying engineering measures to reduce the residual amount of OCPs and develop a circular economy if necessary [ 36 ].…”

Section: Resultsmentioning

confidence: 99%

Distribution, Transfer, and Health Risk of Organochlorine Pesticides in Soil and Water of the Huangshui River Basin

Yu,

Zhou,

et al. 2023

Toxics

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The potential negative impacts of organochlorine pesticides on the environment and human health continue to receive attention. In order to study the spatial distribution characteristics of organochlorine pesticides in the inland alpine region, researchers collected soil and water samples in the Huangshui River Basin of the Qinghai–Tibetan Plateau and tested them for organochlorine pesticide residues represented by dichlorodiphenyltrichloroethane (DDT) and hexachlorohexane (HCH). The study identified the sources of OCPs by component analysis. We also constructed the LEVEL III model, applicable to the Huangshui River Basin, and used it to study the migration patterns of OCPs in various environmental media. OCPs were detected at low levels in the study area environment. The results of the OCPs source analysis show that there are both historical residuals and new sources in the region. Residual DDTs may originate from the mixture of technical DDTs and dicofol, and HCHs may originate from lindane or technical HCH. DDTs are mainly stored in soil, the input and output pathways are mainly atmospheric advection input and output, and its transport behavior in the environment is mainly air–soil exchange. Carcinogens in the study area pose little threat to people exposed to contaminated soil and contaminated water, but the cancer risk to children is greater than to adults. This study is helpful to managers of regional pesticide management and control.

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Section: Resultsmentioning

confidence: 99%

Distribution, Transfer, and Health Risk of Organochlorine Pesticides in Soil and Water of the Huangshui River Basin

Yu,

Zhou,

et al. 2023

Toxics

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“…The environmental fate of OCPs is determined by their physical-chemical characteristics and its analysis can be greatly influenced by the features of OCPs [ 9 ]. The analysis of these POPs therefore requires a thorough understanding of the partition coefficient, volatility, solubility, and potential initial interferences of OCPs.…”

Section: Results and Discussion: Literature Reviewmentioning

confidence: 99%

“…Water, sediment, and biota may all be distributed differently depending on the partition coefficients and hydrophobicity [ 61 ]. Pesticides are persistent in the environment due to their solubility, mobility, degradation half-life (DT 50 ), n-octanol-water partition coefficient (Kow), as well as the characteristics of the soil [ 9 ]. However, monitoring studies rarely address the correlation between the presence of pesticides and their properties [ 62 ].…”

Section: Results and Discussion: Literature Reviewmentioning

confidence: 99%

“…The octanol-water (K OW ) partition coefficient is the ratio of a substance's equilibrium concentration in two immiscible phases [ 63 ], such as the concentration of OCPs in water and lipid-based compounds. The pesticide has a stronger affinity for lipid-based compounds than for the aqueous phase, according to a high partition coefficient [ 9 ]. Because of this, it is demanding to extract the pesticide from the sample matrix in the analysis of OCPs with high partition coefficient like sediment [ 64 ].…”

Section: Results and Discussion: Literature Reviewmentioning

confidence: 99%

“…However, because of their ubiquitous nature, stability, volatility, resistance to degradation, and lipophilicity, OCPs have accumulated in both the natural environment and humans [ 4 , 8 ]. They enter the environment by infiltration, surface runoff, and volatilization, among other mechanisms [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

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Conversion of Rice Field Ecosystems from Conventional to Ecological Farming: Effects on Pesticide Fate, Ecotoxicity and Soil Properties

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Distribution of pesticide residues in agricultural topsoil of the Huangshui catchment, Qinghai Tibet Plateau

Cited by 10 publications

References 49 publications

Distribution, Transfer, and Health Risk of Organochlorine Pesticides in Soil and Water of the Huangshui River Basin

Distribution, Transfer, and Health Risk of Organochlorine Pesticides in Soil and Water of the Huangshui River Basin

Review of scientific literature on available methods of assessing organochlorine pesticides in the environment

Conversion of Rice Field Ecosystems from Conventional to Ecological Farming: Effects on Pesticide Fate, Ecotoxicity and Soil Properties

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