摘要
对株洲市清水塘工业区地表水底泥重金属含量进行了检测，并采用地积累指数法进行了评价。结果表明，该区底泥受到重金属极强污染，各溪港污染程度为老霞湾港〉铜塘港〉霞湾港，各元素污染程度为Cd〉Hg〉Pb〉As；霞湾港由于底泥量最大，其重金属含量最大，Cd、Hg、Pb、As分别占总量的69．45％、80．62％、66．46％和86．56％；霞湾港中污水厂～河口段重金属含量最大，Cd、Hg、Pb、As分别占该港总量的98．50％、56．06％、18．14％和52．09％。
The distribution of heavy metals including Cd, Pb, As and Hg in bottom sediment of surface water of Qingshuitang district was detected and evaluated by adopting the index of Geo-accumulation method. The result showed that the bottom sediment of Qingshuitang district was polluted seriously by heavy metals. The pollution degree distributed in different locations were as Old Xiawan harbor 〉 Tongtang harbor 〉 Xiawan harbor and the severity order of heavy metals were as Cd 〉 Hg 〉 Pb 〉 As. With the most bottom sediment, Xiawan harbor had the highest proportion of heavy metals. Actually the metals of Cd, Pb, As and Hg accounted for 69.45, 80. 62, 66. 46 and 86.56% of the total sediment, respectively. As for Xiawan harbor, the section from the wastewater treatment plant to the debouchment contained the most heavy metals, with the proportion of Cd, Pb, As and Hg as 98.50, 56. 06, 18. 14 and 52. 09% of the total respectively.
出处
《四川环境》
2008年第4期74-78,共5页
Sichuan Environment
关键词
地表水
底泥
重金属污染
地积累指数
Surface water
bottom sediment
heavy metal pollution
the index of Geo-accumulation
