QQ客服 官方微博 反馈留言

	Distribution Characteristics and Pollution Assessments of Heavy Metals in Sediments from Zhangweinan Canal
	Li, Guoliang; Chen, Qiuwen
	2013
会议名称	35th World Congress of the International-Association-for-Hydro-Environment-Engineering-and-Research (IAHR)
会议日期	SEP 08-13, 2013
会议地点	Chengdu, PEOPLES R CHINA
关键词	Zhangweinan canal Sdiment Heavy metals Geoaccumulation index Hakanson ecological risk index
英文摘要	Heavy metals in sediments from Zhangweinan Canal were detected by ICP-MS. The results indicated that the distribution characteristics of heavy metals, including Cu, Zn, Pb, As and Cr, were in the similar trend, the concentrations of which were in the order of Wei river > Wei canal > New Zhangwei river. Zn, Pb, As were the main heavy metal pollutants in Wei river section. The average contents of these heavy metals in sediments from Wei river were 115, 11.6, 32.9 and 155mg/kg(dry) respectively, which is higher than the sediment background value in China. For the section of Wei Canal, it was Zn and As that exceeded the background value; While, As stood out in New Zhangwei river section. The degree of pollution and ecological risk were evaluated by the index of geoaccumulation and the Hakanson ecological risk index. The results showed that the geoaccumulation index of the heavy metals in the studied river was in the order of As, Zn, Cu, Cr, Pb. While, from the perspective of the overall pollution, the ecological risk of the heavy metals in sediments of the studied river was in the order of As, Cu, Pb, Cr, Zn. In general, most of the studied heavy metals presented low levels of the potential ecological risk throughout the studied watercourse, except As with high potential ecological risk index, to which more attention should be paid.
内容类型	会议论文
源URL	[http://ir.rcees.ac.cn/handle/311016/24585]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Li, Guoliang,Chen, Qiuwen. Distribution Characteristics and Pollution Assessments of Heavy Metals in Sediments from Zhangweinan Canal[C]. 见:35th World Congress of the International-Association-for-Hydro-Environment-Engineering-and-Research (IAHR). Chengdu, PEOPLES R CHINA. SEP 08-13, 2013.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。