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Critical load model and pollution indices application for water–soil–plant system assessment around El-Hammam canal, East El-Alamein, Egypt
International Journal of Environmental Science and Technology ( IF 3.0 ) Pub Date : 2020-08-03 , DOI: 10.1007/s13762-020-02878-8
A. A. Elnazer , S. A. Salman

El-Hammam canal, East El-Alamein City, is one of the national sustainable projects for facing food shortage in Egypt. The current work was conducted to evaluate the water–soil–plant system quality concerning potential toxic elements (PTEs) in this area. Surface water, soil and fruit samples were collected and analyzed for their content of As, Cd, Cr, Cu, Ni and Pb. The studied soils are sandy calcareous alkaline soil with low organic matter content. The potential ecological risk index (PERI) indicated that most soils were of very high PERI owing to the elevated Cd and to less extent As and Ni. Unfortunately, most of the recorded Cd and Pb appeared in the bioavailable fraction. The studied water samples contained acceptable levels of ions for irrigation, except Cd, Cu and Ni. Both apple and peach contained acceptable concentrations of PTEs, except peach that contains an elevated level of As. It was observed that the concentration of PTEs in peach was higher than the apple. The bio-concentration factor values of PTEs in apple and peach indicated that fruits were excluders of the PTEs. The study area contains critical loads of the studied PTEs, especially As, Cr and Ni, which mostly attributed to the plant uptake of PTEs. The uptake of plants (harvested part) of these toxic elements can be cause of many health problems. Pesticide sprays may be the source of these elements leaching on plant surfaces. Finally, the study area content of PTEs can be attributed to the polluted irrigation water and agrochemical.



中文翻译:

埃及东部El-Alamein的El-Hammam运河周围的临界负荷模型和污染指数在水-土壤-植物系统评估中的应用

东部阿拉曼市的哈曼运河是埃及面临粮食短缺的国家可持续项目之一。当前的工作是为了评估该地区潜在的有毒元素(PTE)的水土植物系统质量。收集地表水,土壤和水果样品,并分析其砷,镉,铬,铜,镍和铅的含量。所研究的土壤是有机质含量低的砂质钙质碱性土壤。潜在的生态风险指数(PERI)表明,由于Cd含量升高,As和Ni含量降低,大多数土壤的PERI都很高。不幸的是,大多数记录的Cd和Pb出现在生物利用度中。除镉,铜和镍外,所研究的水样中都含有可接受水平的灌溉离子。苹果和桃子都含有可接受浓度的PTE,除了桃子中砷含量较高。观察到桃子中PTE的浓度高于苹果。苹果和桃子中PTE的生物浓度因子值表明,水果是PTE的排除物。研究区域包含所研究PTE的临界负荷,尤其是As,Cr和Ni,这主要归因于植物对PTE的吸收。植物(被收获部分)对这些有毒元素的摄取可能导致许多健康问题。农药喷雾可能是这些元素在植物表面浸出的来源。最后,PTEs研究区域的含量可归因于灌溉水和农药的污染。苹果和桃子中PTE的生物浓度因子值表明,水果是PTE的排除物。研究区域包含所研究PTE的临界负荷,尤其是As,Cr和Ni,这主要归因于植物对PTE的吸收。植物(被收获部分)对这些有毒元素的摄取可能导致许多健康问题。农药喷雾可能是这些元素在植物表面浸出的来源。最后,PTEs研究区域的含量可以归因于灌溉水和农药的污染。苹果和桃子中PTE的生物浓度因子值表明,水果是PTE的排除物。研究区域包含所研究PTE的临界负荷,尤其是As,Cr和Ni,这主要归因于植物对PTE的吸收。植物(被收获部分)对这些有毒元素的摄取可能导致许多健康问题。农药喷雾可能是这些元素在植物表面浸出的来源。最后,PTEs研究区域的含量可以归因于灌溉水和农药的污染。农药喷雾可能是这些元素在植物表面浸出的来源。最后,PTEs研究区域的含量可以归因于灌溉水和农药的污染。农药喷雾可能是这些元素在植物表面浸出的来源。最后,PTEs研究区域的含量可以归因于灌溉水和农药的污染。

更新日期:2020-08-03
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