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题名:
Heavy metal induced ecological risk in the city of Urumqi, NW China
作者: Wei, Binggan ; Jiang, Fengqing ; Li, Xuemei ; Mu, Shuyong
通讯作者: Jiang, FQ, Chinese Acad Sci, Xinjiang Inst Ecol & Geog, 818 S Beijing Rd, Urumqi 830011, Xinjiang, Peoples R China
关键词: ROAD-DEPOSITED SEDIMENTS ; STREET DUSTS ; MULTIVARIATE-ANALYSIS ; URBAN SOILS ; AREA ; CONTAMINATION ; JORDAN ; PATTERNS ; SAMPLES
刊名: ENVIRONMENTAL MONITORING AND ASSESSMENT
发表日期: 2010
卷: 160, 期:40547, 页:33-45
收录类别: SCI
部门归属: [Wei, Binggan; Jiang, Fengqing; Li, Xuemei; Mu, Shuyong] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 830011, Xinjiang, Peoples R China; [Wei, Binggan; Li, Xuemei] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
摘要: A total of 169 samples of road dust collected in the city of Urumqi, capital of the Xinjiang Uygur Autonomous Region in northwest China, were analyzed by method of inductively coupled plasma-mass spectrometry for 10 elements (i.e., Cd, Cr, Cu, Ni, Pb, Mn, Be, Co, Zn, and U). The possible sources of metals are identified with multivariate analysis such as correlation analysis, principal component analysis, and cluster analysis. Besides, enrichment factors are used to quantitatively evaluate the influences of human activities on heavy metal concentrations. Moreover, the potential ecological risk index is applied to evaluating the ecological risk of heavy metal pollutants. The results indicate that: (1) the concentrations of the heavy metals involved were much higher in urban areas than the background values, except those of Co and U. Mn, U, and Co are mainly of natural origin; Cu, Pb, Zn, and Cr are mainly of traffic sources and are partly of industrial sources; Ni and Be are mainly the results of industrial activities, such as machine shops, firepower plants, tire and rubber factories, cement factories, and textile mills and are partly of the traffic sources; (2) with high "toxic-response" factor and high concentration, Cd has more serious influences on the environment than other heavy metals. Therefore, commercial and industrial areas are usually characterized by higher potential ecological risk when compared with residential areas and new developing urban areas. The results of this study could be helpful for the management of environment in industrial areas.
内容类型: 期刊论文
URI标识: http://ir.xjlas.org/handle/365004/10052
Appears in Collections:中国科学院新疆生态与地理研究所(2010年以前数据)_期刊论文

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Recommended Citation:
Wei, Binggan,Jiang, Fengqing,Li, Xuemei,et al. Heavy metal induced ecological risk in the city of Urumqi, NW China[J]. ENVIRONMENTAL MONITORING AND ASSESSMENT,2010,160(40547):33-45.
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