Microscopic morphology and elemental composition of atmospheric particles from seven micro-environments in Xi'an

doi:10.1177/1420326X19836621

IEECAS OpenIR > 粉尘与环境研究室

	Microscopic morphology and elemental composition of atmospheric particles from seven micro-environments in Xi'an
	Yan, Lu 1; Cheng, Yan 1,2; Wu, Feng 2,3; Chang, Hong2 ; Liu, Song 1,4; Wang, Ye Lin 1; Yu, Chuck Wah 1,5; Zhang, Yun Wei 1
通讯作者	Cheng, Yan(chengyan@mail.xjtu.edu.cn)
	2019-11-01
发表期刊	INDOOR AND BUILT ENVIRONMENT
ISSN	1420-326X
卷号	28 期号:9 页码:1237-1253
摘要	This paper characterizes the morphological and elemental compositions of individual particles in seven micro-environments of Xi'an. Atmospheric particulate matter samples were collected at one suburban site (Duling Park (DL)), three urban sites (roadside site (RS), clear days (CD), dusty days (DD)) and three indoor sites (hot pot (HP), barbecue (BBQ), hospital (HO)) during March-April in 2017. A total of 469 particles were analysed by a scanning electron microscopy with an energy dispersive X-ray spectroscopy. Seven types of particles were observed, including sulphate particles, iron oxide particles, dust mineral particles, soot, organic aerosols, silicon-aluminium (Si-Al)-rich fly ash and biological particles. Soot accounted for 22% in BBQ, indicating an effect of BBQ coal burning. Sulphate particles were found in high abundance (14-15%) in HP and HO samples, consistent with the occurrence of secondary chemical reactions. Organic aerosols accounted for 13% in HO, 20% in HP and BBQ samples due to cooking of food and human factors. Comparison of samples in indoor and outdoor environments showed that the external transmission of dust mineral particles and Fe oxide particles played a key role in indoor levels. The microscopic analysis also demonstrated that the particles in Xi'an were highly distributed with fine particles (less than 3 mu m) and that the morphology of fine particles tended to be spherical.
关键词	Particle Particle size distribution Morphology Chemical composition SEM-EDX
DOI	10.1177/1420326X19836621
关键词[WOS]	PARTICULATE MATTER ; AEROSOL ; CARBON ; SOOT ; CITY
收录类别	SCI ; SCI
语种	英语
WOS研究方向	Construction & Building Technology ; Engineering ; Public, Environmental & Occupational Health
WOS类目	Construction & Building Technology ; Engineering, Environmental ; Public, Environmental & Occupational Health
WOS记录号	WOS:000486005400008
出版者	SAGE PUBLICATIONS LTD
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/13355
专题	粉尘与环境研究室
通讯作者	Cheng, Yan
作者单位	1.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian, Shaanxi, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Shaanxi, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian, Shaanxi, Peoples R China 4.Environm Protect Agcy Qingyang Dist, Chengdu, Sichuan, Peoples R China 5.ISBE, Milton Keynes, Bucks, England
推荐引用方式 GB/T 7714	Yan, Lu,Cheng, Yan,Wu, Feng,et al. Microscopic morphology and elemental composition of atmospheric particles from seven micro-environments in Xi'an[J]. INDOOR AND BUILT ENVIRONMENT,2019,28(9):1237-1253.
APA	Yan, Lu.,Cheng, Yan.,Wu, Feng.,Chang, Hong.,Liu, Song.,...&Zhang, Yun Wei.(2019).Microscopic morphology and elemental composition of atmospheric particles from seven micro-environments in Xi'an.INDOOR AND BUILT ENVIRONMENT,28(9),1237-1253.
MLA	Yan, Lu,et al."Microscopic morphology and elemental composition of atmospheric particles from seven micro-environments in Xi'an".INDOOR AND BUILT ENVIRONMENT 28.9(2019):1237-1253.