徐迎春,杨丽虎,宋献方,殷乐宜,陈坚,谢月清

• 1:中国科学院地理科学与资源研究所陆地水循环及地表过程重点实验室
• 2:中国科学院大学资源与环境学院
• 3:雄安创新研究院
• 4:生态环境部环境规划院

摘要(Abstract)：

地下水污染风险评估是地下水污染防治的有效工具，对场地地下水污染风险评估开展研究，可以为地下水污染场地管理提供依据。我国目前的场地地下水污染风险评估忽略了场地内部污染差异性，且对受体敏感性不太关注。为此，采用场地风险评估概念模型，重点关注场地实际污染物分布特征及周边多种受体的敏感性，评价场地地下水污染风险。从污染源负荷、包气带防污性、含水层脆弱性和受体敏感性4个方面，运用层次分析法筛选了场地地下水污染风险评估的指标并确定了权重，构建了场地地下水污染风险评估指标体系，将风险划分为低、中、较高、高风险4个等级。以河南某六价铬场地为例，应用构建的风险评价体系，获取了场地的空间风险分布特征。研究结果表明，该场地整体处于中等风险水平，铬渣堆和掩埋铬渣处的东南部风险最高，污染风险主要来源于周边受体的潜在损失性及污染源负荷。敏感度分析表明各指标理论权重与有效权重几乎一致，说明所构建的场地地下水污染风险评价体系可行，可应用于其他特征污染物场地的污染风险评估。

关键词(KeyWords)： 场地;风险评估;受体敏感性;污染特征;敏感度分析

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划项目(2019YFC1804803)

作者(Author): 徐迎春,杨丽虎,宋献方,殷乐宜,陈坚,谢月清

DOI: 10.19509/j.cnki.dzkq.tb20220256

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