Analysis and assessment of heavy metal contamination in surface water and sediments: a case study from Luan River, Northern China

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Analysis and assessment of heavy metal contamination in surface water and sediments: a case study from Luan River, Northern China
	Wang, Zhaoming; Sun, Ranhao; Zhang, Haiping; Chen, Liding
刊名	FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
	2015-04
卷号	9 期号:2 页码:240-249
关键词	heavy metal water sediment geo-accumulation index Luan River
英文摘要	Concentrations of the heavy metals Cu, Ni, Pb, Zn, Cd, and Cr were examined in surface water and sediment from the Luan River inChina,. With a decline in Cu and Ni concentration found in surface water at downstream stations. This finding suggests that water currents are a major explanatory factor in heavy metal contamination. The abundance of Cr, Pb, and Cd observed in the middle reaches of the river indicates heavy metal contamination in local areas, although there was an obvious decrease in concentrations in the water downstream of the Daheiting Reservoir. The significant rising trend in Cu, Pb, and Ni seen the sediment farther away from the river also suggests that anthropogenic activities contribute to heavy metal pollution Sediments were therefore used as environmental indicators, with sediment assessment was conducted using the geo-accumulation index (I (geo)) and the potential ecological risk index (RI). The I (geo) values revealed that Cd (3.13) and Cr (2.39) had accumulated significantly in the Luan River. The RI values for most (89%) of the sampling stations were higher than 300, suggesting that sediment from the Luan River poses a severe ecological risk, with the potential ecological risks downstream higher than that in the upper and middle streams. Good correlations among Pb/Ni, Pb/Cd, Cu/Pb, and Cu/Cd in the water and Cr/Ni in the sediment were observed. Cluster analysis suggested that Cd may have various origins, being derived from anthropogenic sources.
研究领域[WOS]	Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:000349909300008
公开日期	2016-03-08
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/32247]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Wang, Zhaoming,Sun, Ranhao,Zhang, Haiping,et al. Analysis and assessment of heavy metal contamination in surface water and sediments: a case study from Luan River, Northern China[J]. FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING,2015,9(2):240-249.
APA	Wang, Zhaoming,Sun, Ranhao,Zhang, Haiping,&Chen, Liding.(2015).Analysis and assessment of heavy metal contamination in surface water and sediments: a case study from Luan River, Northern China.FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING,9(2),240-249.
MLA	Wang, Zhaoming,et al."Analysis and assessment of heavy metal contamination in surface water and sediments: a case study from Luan River, Northern China".FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING 9.2(2015):240-249.