Arid
DOI10.1016/j.ecoenv2015.12.025
Sources identification and pollution evaluation of heavy metals in the surface sediments of Bortala River, Northwest China
Zhang, Zhaoyong1; Li Juying1; Mamat, Zulpiya2,3; Ye QingFu4
通讯作者Li Juying
来源期刊ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
ISSN0147-6513
EISSN1090-2414
出版年2016
卷号126页码:94-101
英文摘要

The current study focused on the Bortala River - a typical inland river located in an oasis of arid area in northwestern China. The sediment and soil samples were collected from the river and drainage basin. Results showed that: (1) the particle size of the sand fraction of the sediments was 78-697 Am, accounting for 78.82% of the total samples; the average concentrations of eight heavy metals fell within the concentration ranges recommended by the Secondary National Standard of China, while the maximum concentrations of Pb, Cd, and Hg exceeded these standards; (2) results from multivariate statistical analysis indicated that Cu, Ni, As, and Zn originated primarily from natural geological background, while Cd, Pb, Hg and Cr in the sediments originated from human activities; (3) results of the enrichment factor analysis and the geo-accumulation index evaluation showed that Cd, Hg, and Pb were present in the surface sediments of the river at low or partial serious pollution levels, while Zn, Cr, As, Ni, and Cu existed at zero or low pollution levels; (4) calculation of the potential ecological hazards index showed that among the eight tested heavy metals, Cd, Pb, Hg, and Cr were the main potential ecological risk factors, with relative contributions of 25.43%, 22.23%, 21.16%, and 14.87%, respectively; (5) the spatial distribution of the enrichment factors (EFs), the Geo-accumulation index (I,), and the potential ecological risk coefficient (V) for eight heavy metals showed that there was a greater accumulation of heavy metals Pb, Cd, and Hg in the sediments of the central and eastern parts of the river. Results of this research can be a reference for the heavy metals pollution prevention, the harmony development of the ecology protection and the economy development of the oases of inland river basin of arid regions of China, Central Asia and also other parts of the world. (C) 2015 Elsevier Inc. All rights reserved.


英文关键词Heavy metals Source identification Pollution assessment Potential risk assessment Surface sediments Bortala River Northwest China
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000370393700012
WOS关键词POLYCYCLIC AROMATIC-HYDROCARBONS ; ECOLOGICAL RISK-ASSESSMENT ; LAKE ; CONTAMINATION ; DELTA ; WATER ; ACCUMULATION ; HEILONGJIANG ; ENRICHMENT ; MATTER
WOS类目Environmental Sciences ; Toxicology
WOS研究方向Environmental Sciences & Ecology ; Toxicology
来源机构新疆大学
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/192523
作者单位1.Shenzhen Univ, Coll Chem Environm Engn, Shenzhen 518060, Peoples R China;
2.Xinjiang Univ, Coll Resources & Environm Sci, Xinjiang Key Lab Oasis Ecol, Urumqi 830046, Peoples R China;
3.Xinjiang Univ, Ecol Postdoctoral Res Stn, Urumqi 830046, Peoples R China;
4.Zhejiang Univ, Coll Agr & Biotechnol, Hangzhou 310020, Zhejiang, Peoples R China
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GB/T 7714
Zhang, Zhaoyong,Li Juying,Mamat, Zulpiya,et al. Sources identification and pollution evaluation of heavy metals in the surface sediments of Bortala River, Northwest China[J]. 新疆大学,2016,126:94-101.
APA Zhang, Zhaoyong,Li Juying,Mamat, Zulpiya,&Ye QingFu.(2016).Sources identification and pollution evaluation of heavy metals in the surface sediments of Bortala River, Northwest China.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,126,94-101.
MLA Zhang, Zhaoyong,et al."Sources identification and pollution evaluation of heavy metals in the surface sediments of Bortala River, Northwest China".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 126(2016):94-101.
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