气候变化领域集成服务门户(CCPortal): 兰州市街道尘埃的元素空间变化特征研究

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	兰州市街道尘埃的元素空间变化特征研究
其他题名	Spatial Variation Characteristics of Elements of Street Dust in Lanzhou
	王冠; 夏敦胜; 陈发虎; 刘秀铭; 杨丽萍; 魏海涛
发表日期	2008
ISSN	1003-7578
卷号	22 期号:6 页码:13-20
中文摘要	用X射线荧光法分析了兰州市街道尘埃样品元素的含量，并利用富集因子分析方法对实验数据进行统计分析，以对比元素浓度的空间变化特征。结果表明：兰州街道尘埃中元素Al，Na，Ba，Si，Ca，Sn，Th，W，La，U，Zr，Zn，Mn，Ce，Hf，Pb，Mo，Cs，Cl的富集因子介于110之间，人为污染占相当的比例；As，S，Bi的富集因子大于10，主要源于人类活动导致的各种污染因素；标识性元素的空间特征分析表明，兰州市燃煤污染较严重的区域为西固区和兰州市第二热电厂附近；沙井驿附近和城关区汽车尾气污染严重；Bi和Cs可能来源于工业污染。
英文摘要	Samples of street dust were collected in Lanzhou in January 2006 and element concentration were analyzed by X - ray fluorescence. Element concentrations in different places were compared, and enrichment factor method was used in this study. The conclusions are shown as follows. Enrichment factor values of Al, Na, Ba, Si, Ca, Sn,Th,W, La,U,Zr,Zn, Mn, Ce, Hf, Pb, Mo, Cs, Cl are among 1 - 10. At certain extent, these elements come from artificial factors. Enrichment factor values of As, S, Bi are more than 10. That means they come from manmade pollution. The space characteristics of some representative elements show that coal buring pollution in Xigu district and the second thermoelectric plant in Lanzhou are more serious than others. The pollution of vehicular exhausts in Shajingyi and Chengguan district are higher. At last, Bi and Cs are deduced from industrial pollution.
关键词	街道尘埃化学元素富集因子兰州市
英文关键词	street dust;elements;enrichment factor;Lanzhou
语种	中文
WOS研究方向	Environmental Sciences & Ecology
WOS类目	ENVIRONMENTAL SCIENCES
CSCD记录号	CSCD:3290365
来源期刊	干旱区资源与环境
来源机构	兰州大学 ; 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/1679
推荐引用方式 GB/T 7714	王冠,夏敦胜,陈发虎,等. 兰州市街道尘埃的元素空间变化特征研究[J]. 兰州大学, 中国科学院青藏高原研究所,2008,22(6):13-20.
APA	王冠,夏敦胜,陈发虎,刘秀铭,杨丽萍,&魏海涛.(2008).兰州市街道尘埃的元素空间变化特征研究.干旱区资源与环境,22(6),13-20.
MLA	王冠,et al."兰州市街道尘埃的元素空间变化特征研究".干旱区资源与环境 22.6(2008):13-20.