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首页> 外文期刊>Sadhana >Pedospheric adsorption–desorption of anti-moulting agent Chlorfluazuron and transfer in agriculturally significant Arcadian soils
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Pedospheric adsorption–desorption of anti-moulting agent Chlorfluazuron and transfer in agriculturally significant Arcadian soils

机译：消旋剂氯氟嘧磺隆在土壤中的吸附吸附和解吸作用以及在农业上重要的Arcadian土壤中的迁移

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摘要

Agrochemical-based soil and water contamination has been posing serious threats to ecological balance. Current research investigates the sorption and mobility behaviour of a Benzylurea insecticide, Chlorfluazuron (CFZ), by a standard batch equilibrium method. After investigation of soils’ physical and chemical properties, sorption assays have been performed on five soils from agriculturally significant regions where CFZ can probably occur. CFZ expressed poor adsorption on the selected soils with linear adsorption coefficient, i.e.K d(ads) , ranging between 6.08 and 9.57 μg/mL and Freundlich adsorption coefficient K f(ads) having a range of 4.18–9.01 μg/mL. Linear and Freundlich models displayed correlation coefficient R2 value to be ≥0.84 and 0.83, respectively, reflecting the goodness of fit of the experimental data. Furthermore, the mobility of CFZ was assessed using the McCall classification based on K oc values. CFZ expressed high mobility in soils with less adsorption. The adsorptive and desorptive interactions were highly dependent upon soil physicochemical characteristics. Based on the current investigation, CFZ can be predicted to be a potential threat for soils with a low adsorptive affinity towards it. Future investigations in this regard can consider the use of sustainable materials and procedure for CFZ decontamination in vulnerable soils.
机译：基于农药的土壤和水污染已对生态平衡构成严重威胁。当前的研究通过标准的批平衡法研究了苄脲类杀虫剂氟氟龙（CFZ）的吸附和迁移行为。在调查了土壤的物理和化学性质之后，对可能来自CFZ的农业重要地区的五种土壤进行了吸附测定。 CFZ在选定的土壤上表现出较差的吸附，其线性吸附系数（K d（ads））在6.08至9.57μg/ mL之间，Freundlich吸附系数K f（ads）在4.18–9.01μg/ mL之间。线性模型和Freundlich模型显示的相关系数R2值分别≥0.84和0.83，反映了实验数据的拟合优度。此外，使用基于K oc值的McCall分类评估了CFZ的迁移率。 CFZ在土壤中表现出高迁移率，但吸附较少。吸附和解吸相互作用高度依赖于土壤的理化特性。根据目前的调查，可以预见CFZ可能是吸附亲和力低的土壤的潜在威胁。未来在这方面的研究可以考虑在脆弱土壤中使用可持续材料和CFZ净化程序。

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