【作者】 廖涛； 叶飞； 褚洪国； 方国华； 李鑫；

【Author】 Liao Tao;Ye Fei;Chu Hongguo;Fang Guohua;Li Xin;Jiangsu Surveying and Design Institute of Water Resources Co.,Ltd;College of Water Conservancy and Hydropower Engineering, Hohai University;ZhengYe Design Corporation Limited;

【机构】 江苏省水利勘测设计研究院有限公司； 河海大学水利水电学院； 正业设计股份有限公司；

【摘要】 河道底泥重金属是造成水体二次污染的主要来源,为保护佳木斯市河流生态环境的健康发展,对佳木斯市音达木河、陆家岗河和王三五河三条河流共52处底泥进行检测,分析了8种重金属(As、Cd、Cr、Cu、Hg、Ni、Pb、Zn)的含量分布状况,分别采用地累积指数法、污染负荷指数法和潜在生态危害指数法对重金属污染状况进行了评价。结果表明:52处底泥重金属含量大部分超过了黑龙江土壤背景值,各重金属综合污染程度为Hg>Cd>As>Cu>Pb>Ni>Cr>Zn,Hg、Cd是佳木斯市三条河流的主要重金属污染物,其中Hg污染程度最大,急需采取有效措施进行污染防治与治理。更多还原

【Abstract】 Heavy metals in river sediment are the main source of secondary pollution. In order to protect the healthy development of river ecological environment in Jiamusi City, 52 sediment samples from Yindamu River, Lujiagang River and Wangsanwu River in Jiamusi City were tested. The content characteristics of 8 heavy metals(As, Cd, Cr, Cu, Hg, Ni, Pb, Zn) were analyzed. The pollution degree of heavy metals was evaluated by three methods including the index of geoaccumulation, potential ecological risk, and pollution load index. The results showed that most of the heavy metals in 52 sediment exceeded the background value of Heilongjiang soil, and the pollution degree of heavy metals were Hg>Cd>As>Cu>Pb>Ni>Cr>Zn. Hg, Cd were the main heavy metal pollutants in three rivers of Jiamusi city, among which Hg pollution degree was the largest, so effective measures were urgently needed to be taken for pollution prevention and control.更多还原