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首页> 外文期刊>Journal of Chemistry >Risk Assessment of Trace Element Contamination in Drinking Water and Agricultural Soil: A Study in Selected Chronic Kidney Disease of Unknown Etiology (CKDu) Endemic Areas in Sri Lanka
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Risk Assessment of Trace Element Contamination in Drinking Water and Agricultural Soil: A Study in Selected Chronic Kidney Disease of Unknown Etiology (CKDu) Endemic Areas in Sri Lanka

机译：饮用水和农业土壤痕量元素污染风险评估 - 斯里兰卡未知病因（CKDU）流行区域的研究慢性肾病

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Unexplained or unclear etiology of chronic kidney disease (CKDu) has been reported in Sri Lanka’s North Central Province (NCP) for more than two decades. Meanwhile, high exposure to heavy metals/metalloids and their accumulation are recognized as the origin of many acute and chronic diseases in certain vulnerable human tissues including kidneys. This study evaluates the contamination status of heavy metals/metalloids of the drinking water and agricultural soil in two CKDu endemic areas compared with a reference area in Sri Lanka based on common indexes and attribute of the commonly used fertilizers evaluated to identify the basic sources of toxic metals in the agricultural soil. Mean concentrations of heavy metals/metalloids such as Mn, Co, As, Cd, Pb, Cu, Zn, and Fe in drinking water of CKDu endemic areas were far below Sri Lankan water quality standards (permissible limits). In addition, all sampling locations dropped below the medium range of the heavy metal pollution index of water (HPI 15–40). Geoaccumulation indexes ( I geo ) of soil reveal that paddy soil in CKDu endemic areas is being moderately polluted with toxic metals/metalloids such as As, Pb, Cu, Ni, Cr, Zn, and Cd. On the other hand, the application of fertilizers, which contained a high dose of toxic metals, could be the driving force for agricultural soil pollution, and limitless application of low-quality fertilizer would lead to more soil contamination with heavy metals. Hence, hazardous metals can be incorporated into the food chains via contaminated paddy soil.
机译：在斯里兰卡的北部中央省（NCP）持续了两十年来，慢性肾病（CKDU）的未解释或不明确的病因。同时，高暴露于重金属/金属体及其积累被认为是某些脆弱的人组织中许多急性和慢性疾病的起源，包括肾脏。本研究评估了两种CKDU流行区域的饮用水和农业土壤重金属/金属污染情况的污染状态与斯里兰卡的参考面积，基于常用的肥料的常见指数和常用肥料评估的基本毒性的常见指标农业土壤中的金属。 CKDU流行区饮用水中的Mn，Co，As，Cd，Pb，Cu，Zn和Fe等重金属/金属剂等的平均重金属/金属浓度远远低于SRI Lankan水质标准（允许限制）。此外，所有采样位置均低于水的重金属污染指数的中等范围（HPI 15-40）。土壤的地质累积指数（I Geo）揭示了CKDU流行区域的水稻土正在受到毒性金属/金属体的中度污染，例如Pb，Cu，Ni，Cr，Zn和Cd。另一方面，含有高剂量有毒金属的肥料的应用可能是农业土壤污染的驱动力，无限应用低质量肥料将导致重金属的土壤污染更多。因此，危险金属可以通过污染的水稻土掺入食物链中。

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