In this study, the impact of MSW landfill on the surface and groundwater resources pollution in Tehran Province was investigated using a multivariate statistical technique concerning multiple water quality indicators. To assess the role of the landfill on surface and groundwater pollution, a statistical approach was designed in a way that the distance from landfill was considered as the main factor while sub-factors were various physicochemical parameters of water samples collected from groundwater and surface water. Sampling took place for two years on a monthly basis. Results of groundwater samples indicated that SO42− (254 mg/l), PO43− (0.13 mg/l) and EC (1177.9 µs/cm) exceeded their acceptable limits of drinking water standard in near the landfill. For groundwater, all water quality parameters (except heavy metals, PO43−, SO42−, Na + , Mg2+, and pH) were higher adjacent to the landfill, than upstream and downstream locations (significance level P < 0.05). Concentrations of CU (0.32 mg/l), Fe (5.4 mg/l), NO3− (37 mg/l), BOD (244 mg/l), COD (340 mg/l), PO43− (8.5 mg/l), TDS (4345 mg/l) and the EC (8460 µs/cm) of the surface water at the near-landfill station exceeded their acceptable limits of the prescribed standard. Moreover, the statistical analysis carried out revealed that there is a direct relationship between the water quality parameters and the physicochemical characteristics of the leachate from the landfill. This study showed the usefulness of multivariate statistical techniques for the analysis and process of complex data sets and the identification of pollution sources. Based on the results obtained in this research, it is recommended to implement leachate collection and treatment facilities on-site as a high priority. Highlights: Impact of Robatkarim Landfill on Groundwater and Surface Water Quality Studying A Wide Range of Important Parameters in Water Quality Observing Higher Amount of Pollutants in Leachate Compared to Standards Descending of Pollutants Concentration in Farther Areas from the Landfill

中文翻译：

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城市固体废物填埋场附近地表和地下水资源质量的多指标和多元统计方法评估

在这项研究中，使用涉及多个水质指标的多元统计技术调查了垃圾填埋场对德黑兰省地表和地下水资源污染的影响。为了评估垃圾填埋场对地表水和地下水污染的作用，设计了一种统计方法，以距垃圾填埋场的距离为主要因素，而子因素是从地下水和地表水中采集的水样的各种理化参数。抽样进行了两年，每月一次。地下水样品的结果表明，在垃圾填埋场附近，SO42− (254 mg/l)、PO43− (0.13 mg/l) 和 EC (1177.9 µs/cm) 超出了其可接受的饮用水标准限值。对于地下水，所有水质参数（重金属、PO43−、SO42−、Na + 、Mg2+、和 pH 值）在垃圾填埋场附近高于上游和下游位置（显着性水平 P < 0.05）。CU (0.32 mg/l)、Fe (5.4 mg/l)、NO3− (37 mg/l)、BOD (244 mg/l)、COD (340 mg/l)、PO43− (8.5 mg/l) 的浓度)、近垃圾填埋站地表水的 TDS (4345 mg/l) 和 EC (8460 µs/cm) 超过了规定标准的可接受限度。此外，进行的统计分析表明，水质参数与垃圾填埋场渗滤液的理化特性之间存在直接关系。本研究显示了多元统计技术对于分析和处理复杂数据集以及识别污染源的有用性。根据本研究的结果，建议优先在现场安装渗滤液收集和处理设施。亮点： Robatkarim 垃圾填埋场对地下水和地表水质的影响 研究广泛的水质重要参数 与标准相比，渗滤液中的污染物含量更高 远离垃圾填埋场的区域污染物浓度下降