云龙水库周边土壤中重金属的危害评价  

Hazard Assessment of Heavy Metal in the Soil around Yunlong Reservoir

作　　者：徐永梅[1] 字润祥[1] 卞世闻[1] XU Yong-mei;ZI Run-xiang;BIAN Shi-wen(Kunming Environmental Monitoring Center,Kunming Yunnan 650228,China)

机构地区：[1]昆明市环境监测中心,云南昆明650228

出　　处：《环境科学导刊》2019年第1期88-91,共4页Environmental Science Survey

摘　　要：在云龙水库周边选取5个监测点位,测定土壤中的Cu、Zn、Pb、Cd、Cr和As 6种重金属元素的含量,利用地质累积指数法和生态危害指数法进行分析。结果表明:云龙水库周边土壤中的重金属指标地质累积指数Cd和As处于轻度级别; Cu、Zn、Pb、Cr处于偏中度级别;重金属的污染度单因子六项均处于低度污染,多因子也处于低度污染;生态风险指数单个金属指标和多个金属复合指标均处于轻微生态危害状态,土壤状况较好。Five monitoring sites were selected around Yunlong reservoir.The content of Cu,Zn,Pb,Cd,Cr,and As in the soil were tested.Geological accumulation index method and ecological hazard index method were both adopted.The results indicated that the geological accumulation indices of Cd and As were at low grade.However,the indices of Cu,Zn,Pb,and Cr were at moderate grade.The single factor contamination of heavy metals of the six metals was at low level pollution as well as the multiple factors contamination.The ecological hazard index based on single factor and multiple factors were both at the low hazard level.Therefore,the soil quality was good.Key words:

关 键 词：土壤 重金属 危害评价 云龙水库 

分 类 号：X825[环境科学与工程—环境工程]