Elemental Composition, Morphology and Sources of Fine Particulates (PM2.5) in Hefei City, China

doi:10.4209/aaqr.2018.09.0341

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 黄土与第四纪地质国家重点实验室（2010~）

	Elemental Composition, Morphology and Sources of Fine Particulates (PM2.5) in Hefei City, China
	Xue, Huaqin 1,3; Liu, Guijian 1,3; Zhang, Hong 1,2; Hu, Ruoyu 1; Wang, Xin 1
刊名	AEROSOL AND AIR QUALITY RESEARCH
	2019-08-01
卷号	19 期号:8 页码:1688-1696
关键词	PM2.5 Elemental composition Morphology Sources identification
ISSN号	1680-8584
DOI	10.4209/aaqr.2018.09.0341
通讯作者	Liu, Guijian(lgj@ustc.edu.cn)
英文摘要	Elemental composition and morphology were studied for atmospheric fine particles (PM2.5) collected from a fast developing city, Hefei, with an aim of tracing the potential emission sources. The sampling was conducted every month at two urban sites between June 2014 and December 2015. We used X-ray fluorescence (XRF) to determine the elemental composition, and scanning electronic microscopy (SEM) and transmission electron microscope (TEM) to characterize the particles in morphology. Our results showed that PM2.5 contained large fractions of particles likely derived from fuel burning, construction and automobile emissions and was highly enriched in sulfur. Aggregations of particles suggested a strong secondary reaction under high SO2 levels. Some discrepancies in elemental composition at the two sampling sites were observed, which were attributed to the difference in traffic density and construction fugitive dust emissions. A negative correlation existed between the polluted elements in PM2.5 and the ambient temperature and a positive correlation existed with the pressure, likely caused by a reduction in the height of the terrestrial boundary layer and reaction rates of pollutants.
资助项目	National Natural Science Foundation of China[41173032] ; Anhui Environmental Protection Scientific Research Fund[2015004]
WOS关键词	AIR-POLLUTION ; SOURCE APPORTIONMENT ; DAILY MORTALITY ; CHEMICAL CHARACTERISTICS ; ELECTRON-MICROSCOPY ; ENRICHMENT FACTORS ; EUROPEAN CITIES ; AMBIENT AIR ; PM10 ; MATTER
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	TAIWAN ASSOC AEROSOL RES-TAAR
WOS记录号	WOS:000480515700004
资助机构	National Natural Science Foundation of China ; Anhui Environmental Protection Scientific Research Fund
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/13601]
专题	地球环境研究所_黄土与第四纪地质国家重点实验室（2010~）
通讯作者	Liu, Guijian
作者单位	1.Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Crust Mantle Mat & Environm, Hefei 230026, Anhui, Peoples R China 2.Anhui Environm Sci Inst, Hefei 233000, Anhui, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shanxi, Peoples R China
推荐引用方式 GB/T 7714	Xue, Huaqin,Liu, Guijian,Zhang, Hong,et al. Elemental Composition, Morphology and Sources of Fine Particulates (PM2.5) in Hefei City, China[J]. AEROSOL AND AIR QUALITY RESEARCH,2019,19(8):1688-1696.
APA	Xue, Huaqin,Liu, Guijian,Zhang, Hong,Hu, Ruoyu,&Wang, Xin.(2019).Elemental Composition, Morphology and Sources of Fine Particulates (PM2.5) in Hefei City, China.AEROSOL AND AIR QUALITY RESEARCH,19(8),1688-1696.
MLA	Xue, Huaqin,et al."Elemental Composition, Morphology and Sources of Fine Particulates (PM2.5) in Hefei City, China".AEROSOL AND AIR QUALITY RESEARCH 19.8(2019):1688-1696.