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Platinum-group and other traffic-related heavy metal contamination in road sediment, Guangzhou, China
Zhong, LF; Li, J; Yan, W; Tu, XL; Huang, WX; Zhang, XH; wyan@scsio.ac.cn
2012
发表期刊JOURNAL OF SOILS AND SEDIMENTS
ISSN1439-0108
卷号12期号:6页码:942-951
摘要Human exposure to particulate matter emitted from on-road motor vehicles includes complex mixtures of heavy metals from tyres, brakes, part wear, and resuspended road sediment. The purpose of this study was to determine the concentrations of 14 platinum-group and other traffic-related heavy metals in road sediment within the metropolitan area of Guangzhou, China, with a view to identifying their sources and assessing the extent of anthropogenic influence on heavy metal contamination of road sediment. Thirty-five samples of road sediment were collected. The concentrations of Cr, Mn, Ni, Cu, Zn, La, Ce, Mo, Cd, Pb, Ba, and Rh were measured by inductively coupled plasma-mass spectrometry. Pt and Pd were analyzed by isotopic dilution-inductively coupled plasma-mass spectrometry. Multivariate statistical analysis and enrichment factor methods were employed to identify the sources of these heavy metals and to assess anthropogenic influences on their occurrence. The mean concentrations of Pt, Pd, Rh, Cr, Mn, Ni, Cu, Zn, La, Ce, Mo, Cd, Pb, and Ba in the road sediment samples were 68.24, 93.15, 23.85, 147.5, 712.3, 47.24, 177.5, 1254, 47.50, 96.62, 4.91, 3.00, 198.1, and 641.3 ng g(-1), respectively. Very weak to significant linear positive correlations were found among the various heavy metals. The elemental composition of road sediment was dominated by five principal components. Three clusters were identified through cluster analysis, and enrichment factors were calculated relative to soils in China. The sources and degree of contamination of the heavy metals are discussed based on the results. The mean concentrations of heavy metals are higher than background values, especially for Pt, Pd, Rh, Cd, and Zn. Four main sources are identified: (1) Pt, Pd, and Rh were derived from traffic sources; (2) La, Ce, Mn, and Ba were derived mainly from natural sources; (3) Cr, Ni, Cu, Mo, Cd, and Pb showed mixed traffic-industry sources; and (4) Zn originated mainly from industrial sources. Enrichment factor analysis supported this source identification and further indicated that contamination of road sediment in Guangzhou is extremely high for Pt, Pd, and Rh; moderate to very high for Cd, Zn, Pb, Cu, and Mo; and minimal for Cr, Ni, La, Ce, and Ba.
部门归属[Zhong, Lifeng; Yan, Wen; Huang, Weixia; Zhang, Xiaohua] Chinese Acad Sci, S China Sea Inst Oceanol, CAS Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China; [Li, Jie; Tu, Xianglin] Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China
关键词Enrichment Factor Guangzhou Heavy Metals Multivariate Statistical Analysis Platinum-group Elements Road Sediment
学科领域Geosciences, Multidisciplinary ; Soil Science
语种英语
资助项目海洋地质
WOS记录号WOS:000304160900013
引用统计
被引频次:12[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/10339
专题中科院边缘海地质重点实验室
通讯作者wyan@scsio.ac.cn
推荐引用方式
GB/T 7714
Zhong, LF,Li, J,Yan, W,et al. Platinum-group and other traffic-related heavy metal contamination in road sediment, Guangzhou, China[J]. JOURNAL OF SOILS AND SEDIMENTS,2012,12(6):942-951.
APA Zhong, LF.,Li, J.,Yan, W.,Tu, XL.,Huang, WX.,...&wyan@scsio.ac.cn.(2012).Platinum-group and other traffic-related heavy metal contamination in road sediment, Guangzhou, China.JOURNAL OF SOILS AND SEDIMENTS,12(6),942-951.
MLA Zhong, LF,et al."Platinum-group and other traffic-related heavy metal contamination in road sediment, Guangzhou, China".JOURNAL OF SOILS AND SEDIMENTS 12.6(2012):942-951.
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