A GIS-based LVF model for semiquantitative assessment of groundwater pollution risk: A case study in Shenyang, NE China
A GIS-based LVF model for semiquantitative assessment of groundwater pollution risk: A case study in Shenyang, NE China
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DOI：
10.1080/10807039.2016.1245099
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发表时间：
2017-02
期刊：
影响因子：
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通讯作者：
Junjun Zhang;Y. Zhai;P. Xue;Huan Huan-Huan;Xiaobing Zhao;Yanguo Teng;Jinsheng Wang
中科院分区：
文献类型：
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作者：
Junjun Zhang;Y. Zhai;P. Xue;Huan Huan-Huan;Xiaobing Zhao;Yanguo Teng;Jinsheng Wang
摘要地下水污染风险评价是防治地下水污染的有效手段，但其定量化研究还相对不成熟。基于地下水污染源负荷（L）、地下水脆弱性（V）和地下水功能值（F），建立了基于地理信息系统的地下水污染风险半定量评价LVF模型。以7个具体污染源表征污染源负荷，采用改进的DRASTIC法计算脆弱性，结合水质水量评价地下水功能值。该模型被用来评估浅层地下水污染的风险在沈阳市，中国东北，面积为8,263平方公里。结果表明，高风险区占研究区面积的16.3%，主要分布在研究区东部。高风险地区受到地下水埋深较浅以及来自工业、农业和生活污染源的多种有害污染物的严重影响。评价结果反映了沈阳地区地下水污染的风险性，对该地区地下水资源的管理和可持续利用具有重要意义。
ABSTRACT Groundwater pollution risk assessment is a useful tool to prevent and control groundwater pollution, but its quantitative research is still relatively immature. In this study, a geographic information system based LVF model for a semiquantitative assessment of groundwater pollution risk is established, based on the groundwater pollution source load (L), groundwater vulnerability (V), and groundwater function value (F). Further, the pollution source load is characterized by seven specific pollution sources, the vulnerability is calculated by the modified DRASTIC method, and the groundwater function value is evaluated with the water quality and quantity. The model was used to assess the risk of shallow groundwater pollution in Shenyang city, Northeast China, with an area of 8,263 km2. The results show that highest risk areas account for 16.3% of the study area and are mainly distributed in the east of the study area. High risk areas are significantly affected by a shallow buried depth of groundwater and many types of harmful pollutants from industrial, agricultural, and domestic pollution sources. The evaluation results reflect the risk of groundwater pollution in the Shenyang area, which is relevant to the management and sustainable use of groundwater resources in the area.