干旱区生态环境知识资源中心(Arid): Chemical properties and origin of dust aerosols in Beijing during springtime

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	Chemical properties and origin of dust aerosols in Beijing during springtime
	Renjian Zhang; Zhiwei Han; Tiantao Cheng; Jun Tao
来源期刊	China Particuology
ISSN	1672-2515
出版年	2009
卷号	7 期号:1 页码:61-67
英文摘要	Ground observation of dust aerosols was conducted in Beijing in the spring of 2005 in order to investigate the element composition and origin of mineral dust. Mass concentrations of most mineral elements of particles increased during dust events. Mineral elements were predominant in the sums of total element loadings in both dusty and non-dusty days. Mg, Si, Fe, Al or Ti can be used as an indicator of dust outflow; Cl can be viewed as an evidence of dust particles mixing with anthropogenic emissions. Mineral and pollutant elements showed a bimodal mass particle-size distribution (MSD) in non-dusty days, and a trimodal distribution in dusty days, but their peak concentrations fell in different size stages. Zn and S were mainly enriched in fine particles, whereas Cl was enriched in medium particles, but most mineral elements and Cu were enriched in coarse particles. Mineral elements were dominated by crustal material in dusty even non-dusty days, but pollutant elements were from non-crustal material including local and remote sources. Back trajectory analysis indicated that dust particles in Beijing mainly originated from the Gobi and desert regions of Mongolian and northern China.
英文关键词	Dust Chemical element composition Asian dust event Transport route
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Chemistry
CSCD记录号	CSCD:3557511
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335000
作者单位	Renjian Zhang, Institute of Atmospheric Physics, Chinese Academy of Sciences, Key Laboratory of Regional Climate-Environment Research for Temperate East Asia,Chinese Academy of Sciences, Beijing 100029, China.; Zhiwei Han, Institute of Atmospheric Physics, Chinese Academy of Sciences, Key Laboratory of Regional Climate-Environment Research for Temperate East Asia,Chinese Academy of Sciences, Beijing 100029, China.; Tiantao Cheng, Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China.; Jun Tao, South China Institute of Environmental Sciences, Guangzhou, Guangdong 510655, China.
推荐引用方式 GB/T 7714	Renjian Zhang,Zhiwei Han,Tiantao Cheng,et al. Chemical properties and origin of dust aerosols in Beijing during springtime[J],2009,7(1):61-67.
APA	Renjian Zhang,Zhiwei Han,Tiantao Cheng,&Jun Tao.(2009).Chemical properties and origin of dust aerosols in Beijing during springtime.China Particuology,7(1),61-67.
MLA	Renjian Zhang,et al."Chemical properties and origin of dust aerosols in Beijing during springtime".China Particuology 7.1(2009):61-67.