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	Pollution Characteristics Revealed by Size Distribution Properties of Aerosol Particles at Urban and Suburban Sites, Northwest China
	Yu, Ye1; Zhao, Suping1; Wang, Bo1; Fu, Peijian2; He, Jianjun3,4
刊名	AEROSOL AND AIR QUALITY RESEARCH
	2017-07-01
卷号	17期号:7页码:1784-1797
关键词	Lanzhou Atmospheric particles Cluster analysis Volume concentration Sources
ISSN号	1680-8584
DOI	10.4209/aaqr.2016.07.0330
通讯作者	Yu, Ye(yyu@lzb.ac.cn)
英文摘要	High temporal resolution (5 min) particle size distribution data (0.5. 20 mu m) were collected using aerodynamic particle sizer at an urban (Lanzhou) and a suburban (Yuzhong) site at Lanzhou, northwest China from 1(st) August to 31(st) October 2010. Variations of particle concentrations and properties of volume size distributions (PVSD) were analyzed and urban pollution characteristics were investigated using PVSDs and chemical analysis. The average particle number, surface area and volume concentrations for size range 0.5. 10 mu m were 280.54 +/- 270.92 cm(-3), 331.04 +/- 316.95 mu m(2) cm(-3) and 93.01 +/- 127.75 mu m(3) cm(-3), respectively, at the urban site, which were 2.87, 1.50 and 1.62 times higher than those at the suburban site. Compared with the suburban site, shifts of accumulation mode (0.5. 1.0 mu m) to a smaller size and the coarse mode (1.0. 10 mu m) to a larger size of the PVSDs were observed at the urban site, which may be related to elevated fossil fuel burning and municipal construction or fugitive dust, respectively, in urban area. K-means cluster analysis was used to group the PVSD into six clusters representing the effect of different sources and meteorological conditions. PVSDs at the urban site were dominated by clusters affected by local anthropogenic sources and secondary aerosols, which was characterized by bimodal with peaks at accumulation mode and coarse mode, respectively, while those affected by construction works, wind-borne dust, and dust events were dominated by coarse mode. Chemical composition analysis of PM2.5 samples collected on days representing different clusters confirmed the assignment of clusters to different sources.
收录类别	SCI
WOS关键词	SOURCE APPORTIONMENT ; WESTERN CHINA ; RIVER-DELTA ; DUST-STORM ; NUMBER ; CONDENSATION ; ATMOSPHERE ; BOUNDARY ; EVENTS ; CITY
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
语种	英语
出版者	TAIWAN ASSOC AEROSOL RES-TAAR
WOS记录号	WOS:000406127500008
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2557702
专题	寒区旱区环境与工程研究所
通讯作者	Yu, Ye
作者单位	1.Chinese Acad Sci, Key Lab Land Surface Proc & Climate Change Cold &, Lanzhou 730000, Gansu, Peoples R China 2.Lanzhou Univ, Coll Atmospher Sci, Lanzhou 730000, Gansu, Peoples R China 3.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100081, Peoples R China 4.Chinese Acad Meteorol Sci, Key Lab Atmospher Chem CMA, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Yu, Ye,Zhao, Suping,Wang, Bo,et al. Pollution Characteristics Revealed by Size Distribution Properties of Aerosol Particles at Urban and Suburban Sites, Northwest China[J]. AEROSOL AND AIR QUALITY RESEARCH,2017,17(7):1784-1797.
APA	Yu, Ye,Zhao, Suping,Wang, Bo,Fu, Peijian,&He, Jianjun.(2017).Pollution Characteristics Revealed by Size Distribution Properties of Aerosol Particles at Urban and Suburban Sites, Northwest China.AEROSOL AND AIR QUALITY RESEARCH,17(7),1784-1797.
MLA	Yu, Ye,et al."Pollution Characteristics Revealed by Size Distribution Properties of Aerosol Particles at Urban and Suburban Sites, Northwest China".AEROSOL AND AIR QUALITY RESEARCH 17.7(2017):1784-1797.

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