Ecological Risk for Heavy Metals Pollution in Sediment of Xiangjiang River(Changning Section)

摘要：

　　Heavy metals(Cu,Pb,Zn,Cd,Ni,Cr,Hg,As) were detected in the sample which were collected in six cross sections at Xiangjiang River of Changning.The potential ecological risk index were used to evaluate the contamination level of heavy metals in sediment.The results show that sediment of Changning section had polluted seriously and pollutant concentration at Songbai was the highest among all samples.The concentration of Cu,Pb,Zn,Cd reached 4.85~14.4 times higher than background values of Xiangjiang river.The orders of degree of potential ecological risk were Cd>Pb>Hg>As>Cu>Ni>Zn>Cr,which Cd,Pb,Hg,As had more potential ecological risk.

关键词： Xiangjiang river of Changning section Heavy metal pollution Sediment Ecological risk index

作者: Shen Cong Cheng Huangxin Shi Yi

作者单位: China University of Geosciences , Wuhan , 430074 China University of Geosciences, Beijing, 100083

会议类型: 国际会议

会议名称: 金属采掘·冶炼环境影响评价国际研讨会(Proceedings of International Conference on Environmental Impact Assessment of Metal Ore Mining,Smelting Projects)

会议地点: 武汉

会议语种:英文

页码: 305-309

在线出版日期: 2012-10-16（万方平台首次上网日期，不代表论文的发表时间）