Spatial distribution and sources of dissolved trace metals in surface water of the Wei River, China

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	Spatial distribution and sources of dissolved trace metals in surface water of the Wei River, China
	Fadong Li; Jing Li
	2013
关键词	River pollution Cluster analysis Hierarchical systems Manganese Multivariant analysis Nickel Principal component analysis Rivers Spatial distribution Water supply Zinc
英文摘要	For this study, 34 water samples were collected along the Wei River and its tributaries. Multivariate statistical analyses were employed to interpret the environmental data and to identify the natural and anthropogenic trace metal inputs to the surface waters of the river. Our results revealed that Zn, Se, B, Ba, Fe, Mn, Mo, Ni and V were all detected in the Wei River. Compared to drinking water guidelines, the primary trace metal pollution components (B, Ni, Zn and Mn) exceeded drinking water standard levels by 47.1, 50.0, 44.1 and 26.5%, respectively. Inter-element relationships and landscape features of trace metals conducted by hierarchical cluster analysis (HCA) identified a uniform source of trace metals for all sampling sites, excluding one site that exhibited anomalous concentrations. Based on the patterns of relative loadings of individual metals calculated by principal component analysis (PCA), the primary trace metal sources were associated with natural/geogenic contributions, agro-chemical processes and discharge from local industrial sources. These results demonstrated the impact of human activities on metal concentrations in the Wei River. IWA Publishing 2013. IWA Publishing 2013.
出处	Water Science and Technology
卷	67 期:4 页:817-823
收录类别	EI
语种	英语
内容类型	EI期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/31163]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Fadong Li,Jing Li. Spatial distribution and sources of dissolved trace metals in surface water of the Wei River, China. 2013.