长春市南湖水体中重金属元素分布特征  

Distribution Characteristics of the Heavy Metals in South Lake Waters of Changchun

作　　者：张伟娜[1] 陆继龙[2] 

机构地区：[1]吉林师范大学化学学院,吉林四平136000 [2]吉林大学地球探测科学与技术学院,吉林长春130026

出　　处：《吉林师范大学学报（自然科学版）》2013年第2期54-58,共5页Journal of Jilin Normal University:Natural Science Edition

基　　金：长春市科技局项目(长科技合2011174号);吉林师范大学博士启动项目

摘　　要：水体重金属污染是当今世界上最严重的环境问题之一.通过测定长春南湖6个采样点30个具有代表性样品中7项重金属(Cr、Cu、Zn、Pb、Cd、Hg和As)的含量,讨论了南湖水体中重金属元素含量特征和空间分布特征,并采用单因子污染指数和综合因子污染指数法对水体的污染进行了评价.结果表明,南湖水中Cu和Zn在水体中含量较高且变化幅度较大,具有点源污染的特性;Cr、As、Pb和Cd含量低且分布均匀;受Hg点源污染的影响,湖心岛和南湖大桥区处于警戒限内,其它区域均安全.The heavy metals pollution of water is one of the mot serious environmental problems nowadays. The contents and spacial distribution characteristics of heavy metals in different sampling spot and the distribution characteristics of different heavy metals were discussed by determining contents of 7 heavy metals （ Cr, Cu, Zn, Pb,Cd,Hg and As） of 30 water samples which came from 6 sampling spots in Changchun South lake,and the water pollution was evaluated by single factor contaminant index and comprehensive factor contaminant index. The results showed that the contents of Cu and Zn were relatively high, and varied remarkably, and a-point-source pollution was a common characteristic of both heavy metals ;the contents of Cr,As,Pb and Cd were very low, and distributed evenly;But Hg had caused a-point-source pollution,which caused the regions of Centre Island and South lake Bridge were on the verge of warning limits, but other regions were safe.

关 键 词：重金属 单因子污染指数 综合因子污染指数 长春市 南湖 

分 类 号：X132[环境科学与工程—环境科学]