内梅罗综合指数法在河道底泥重金属污染评价中的应用与研究  

Application and study of nemero composite index method in assessment of heavy metal pollution in river sediment

作　　者：张晶 邬立 冯晓琳 ZHANG Jing;WU Li;FENG Xiao-lin(North China Nonferrous Engineering Investigation Institute Co.,Ltd.,Shijiazhuang 050021,China;Technological Innovation Center for Mine Groundwater Safety of Hebei Province,Shijiazhuang 050021,China;Tianjin North China Geological Exploration Bureau,Tianjin300170,China;Heilongjiang Province Geological Environment Monitoring Station,Haerbin 150090,China)

机构地区：[1]华北有色工程勘察院有限公司,河北石家庄050021 [2]河北省矿山地下水安全技术创新中心,河北石家庄050021 [3]天津华北地质勘查局,天津300170 [4]黑龙江省地质环境监测总站,黑龙江哈尔滨150090

出　　处：《地下水》2023年第5期113-116,共4页Ground water

基　　金：河北省重点研发计划项目:“河北省地下水漏斗成因解析及精准管控技术研究”(21373901D)。

摘　　要：为探索8种重金属污染物(镉Cd、汞Hg、砷As、铅Pb、铬Cr、铜Cu、锌Zn、镍Ni)污染程度、空间分布特征、生态污染风险,运用单因子污染指数法、潜在生态危害指数法和内梅罗综合指数法对某清淤河道底泥重金属污染现状进行评价,探究不同评价方法的适用特征。结果表明,三种评价方法的评价结果反映的指向一致,单因子指数法评价结果分级不明确,内梅罗综合指数法评价结果更严格、分级更精确,潜在生态危害指数法评价结果分级较为宽松。研究成果可为城市河道底泥重金属污染综合治理提供依据,为合理选择评价方法提供参考借鉴。To explore the pollution degree,spatial distribution characteristics and ecological pollution risk of 8 heavy metal pollutants(Cd、Hg、As、Pb、Cr、Cu、Zn、Ni),the single factor pollution index method,potential ecological hazard index method and nemero composite index method were used to evaluate the current situation of heavy metal pollution in the sediment of a dredging river,and explored the applicable characteristics of different evaluation methods.The results showed that:The evaluation results of the three evaluation methods reflected the same direction.The grading of the evaluation results of the single factor index method was not clear,and the nemero comprehensive index method was more strict and accurate,The grading of potential ecological hazard index method was relatively loose.The research results can provide a basis for comprehensive treatment of heavy metal pollution in urban river sediment,and provide a reference for rational selection of evaluation methods.

关 键 词：河道底泥 重金属污染 空间分布 生态风险 评价 

分 类 号：P342[天文地球—水文科学] X522[天文地球—地球物理学]