大沽排污河沉积物中重金属的分布特性研究  

Distribution Characteristics of Heavy Metal in the Deposits of Dagu River

作　　者：迟海燕[1] 黎荣[1] 赵子良[2] 董晶[2] 

机构地区：[1]天津大学环境科学与工程学院,天津300072 [2]天津市市政工程建设公司,天津300050

出　　处：《中国给水排水》2006年第6期102-105,共4页China Water & Wastewater

基　　金：天津市2003年科技发展计划项目(043111811)

摘　　要：通过对大沽河上、中游及其支流44个点位沉积物的采样及检测,分析了沉积物中重金属(Cu、Pb、Zn、Cd、Cr、N i、Hg、As)的分布特点及相关关系。结果显示,大沽河上、中游的沉积物中重金属含量之间存在着相关关系,部分沉积物中重金属含量超标,河床中部沉积物的厚度最大,而在河床两侧重金属含量出现极值,这为河道疏浚及河床断面设计提供了参考。Through the sampling and detection of the deposits from 44 points of up- and midstream and branch of Dagu River, the distribution characteristics of the heavy metal including Cu, Pb, Zn, Cd, Cr, Ni, Hg, and As in deposits and their correlations were analyzed. The result shows that there exists correlations among these heavy metal contents in the deposits in up- and mid-stream of Dagu River, and the heavy metal content in part of deposits is over standard, with the maximum depth of deposits in the middle of river bed and extreme limit of heavy metal content occurring on both sides of river bed. All of these provide reference for the river dredging and design of the section of riverbed.

关 键 词：大沽河 河道底泥 重金属分布 

分 类 号：X522[环境科学与工程—环境工程]