University of Novi Sad, Faculty of Technical Sciences, Department of Environmental Engineering and Occupational Safety and Health, Trg Dositeja Obradovića 6, Novi Sad, Serbia.
University of Belgrade, Faculty of Technology and Metallurgy, Karnegijeva 4, Belgrade, Serbia.
Environ Sci Pollut Res Int. 2019 Oct;26(28):28725-28736. doi: 10.1007/s11356-019-06055-4. Epub 2019 Aug 2.
The objective of the paper was to use transport model of selected pesticides (carbendazim, acetamiprid and imidacloprid) in determination of linear sorption coefficients in alluvial aquifer. For constructing transport model, results of a field experiment at the location of Kovin-Dubovac drainage system in Serbia were used in order to set hydraulic parameters (hydraulic conductivity, aquifer layer thickness of the observed area, effective porosity etc.). The field experiment consisted of a tracer test during which concentrations of non-reactive tracer (Cl) and selected pesticides (carbendazim, acetamiprid and imidacloprid) were monitored. For better characterization of hydraulic parameters, a pumping test was conducted at the observed well and results were used in designing transport model. Simulation model was constructed with Lizza groundwater flow software and W.O.D.A. (Well Outline and Design Aid) solver. Obtained linear sorption coefficients in the sand and gravel water-bearing layer were 0.14 mL g for carbendazim and 0.11 mL g for acetamiprid and imidacloprid. Results from this study are a unique insight into mobility of observed pesticides in the alluvial groundwater in natural conditions and can be used in contamination assessment for drinking water wells.
本文的目的是利用选定农药（多菌灵、乙虫腈和吡虫啉）的输运模型，在冲积含水层中测定线性吸附系数。为了构建输运模型，利用了塞尔维亚科文-杜博瓦克排水系统位置的现场试验结果，以确定水力参数（水力传导率、观测区含水层厚度、有效孔隙度等）。该现场试验包括示踪剂试验，在此期间监测了非反应性示踪剂（Cl）和选定农药（多菌灵、乙虫腈和吡虫啉）的浓度。为了更好地描述水力参数，在观测井中进行了抽汲试验，并将结果用于设计输运模型。使用 Lizza 地下水流动软件和 W.O.D.A.（井轮廓和设计辅助）求解器构建模拟模型。在砂卵石含水层中获得的多菌灵和乙虫腈及吡虫啉的线性吸附系数分别为 0.14 mL/g 和 0.11 mL/g。本研究的结果为观察到的农药在自然条件下冲积地下水中的迁移性提供了独特的见解，可用于饮用水井的污染评估。
