气候变化领域集成服务门户(CCPortal): Spatial distributions and characteristics of platinum group elements (PGEs) in urban dusts from China and India

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DOI	10.1016/j.gexplo.2013.02.002
	Spatial distributions and characteristics of platinum group elements (PGEs) in urban dusts from China and India
	Pan, Suhong; Sun, Yali; Zhang, Gan; Chakraborty, Paromita
通讯作者	Sun, YL (通讯作者)
发表日期	2013
ISSN	0375-6742
起始页码	153
结束页码	157
卷号	128
英文摘要	This study investigated platinum group elements (PGEs) in urban dusts from metro cities of China and India. The dust samples were collected during 2007 to 2009 and determined by inductively coupled plasma-mass spectrometry (ICP-MS). The PGE concentrations in the samples from China are within the range of 43 to 385 ng/g for Pt, 3.8 to 538 ng/g for Pd and 2.5 to 134 ng/g for Rh, respectively, and from Kolkata of India are within the range of 2.6 to 51.0 ng/g for Pt, 0.7 to 63.7 ng/g for Pd and 0.2 to 21.3 ng/g for Rh. The level of PGE concentrations is far higher than that of natural background, and this could be attributed to PGE catalytic converters used for automobiles. The PGE abundance levels in the urban dusts from individual cities are different and mainly reflective of the time length for PGE used as catalysts and density of vehicles equipped with catalytic converters. Despite the relatively shorter time period for catalytic converters applied to vehicles in China, PGE contents in the urban dusts from Beijing, Shanghai and Guangzhou have been up to the same magnitude as that in developed countries. According to the ratios of individual PGE to the total PGE contents (Sigma PGE) in the urban dusts, the Pt-Pd-Rh catalytic products were found to have characteristics of varied proportions for both Pt/Sigma PGE and Pd/Sigma PGE, and relatively constant proportion for Rh/Sigma PGE (e.g. constant proportion of (Pt + Pd)/Sigma PGE). The varied proportions of Pt and Pd in catalyst products could imply that there have been some development and improvement of catalyst technology in developing countries. The PGE proportions indicate Rh is a minor component and Pt+Pd is a dominantly major component in the Pt-Pd-Rh catalytic products. (C) 2013 Elsevier B.V. All rights reserved.
关键词	AIRBORNE PARTICULATE MATTER PLASMA-MASS SPECTROMETRY ANTHROPOGENIC PLATINUM RHODIUM CONCENTRATIONS ROADSIDE SOILS PALLADIUM GERMANY PD RH SEDIMENTS
英文关键词	Platinum group elements (PGEs); Catalytic converters; Urban dusts; China; India
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000317870100016
来源期刊	JOURNAL OF GEOCHEMICAL EXPLORATION
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258204
推荐引用方式 GB/T 7714	Pan, Suhong,Sun, Yali,Zhang, Gan,et al. Spatial distributions and characteristics of platinum group elements (PGEs) in urban dusts from China and India[J]. 中国科学院青藏高原研究所,2013,128.
APA	Pan, Suhong,Sun, Yali,Zhang, Gan,&Chakraborty, Paromita.(2013).Spatial distributions and characteristics of platinum group elements (PGEs) in urban dusts from China and India.JOURNAL OF GEOCHEMICAL EXPLORATION,128.
MLA	Pan, Suhong,et al."Spatial distributions and characteristics of platinum group elements (PGEs) in urban dusts from China and India".JOURNAL OF GEOCHEMICAL EXPLORATION 128(2013).