Morphology, composition and mixing state of individual carbonaceous aerosol in urban Shanghai

doi:10.5194/acp-12-693-2012

CORC > 自然资源部第一海洋研究所 > 自然资源部第一海洋研究所 > 业务部门 > 海洋环境与数值模拟研究室

	Morphology, composition and mixing state of individual carbonaceous aerosol in urban Shanghai
	Fu, H.1; Zhang, M.1,5; Li, W.3; Chen, J.1,2; Wang, L.1; Quan, X.4; Wang, W.3
刊名	ATMOSPHERIC CHEMISTRY AND PHYSICS
	2012
卷号	12 期号:2 页码:693-707
ISSN号	1680-7316
DOI	10.5194/acp-12-693-2012
英文摘要	A total of 834 individual aerosol particles were collected during October and November 2010 in urban Shanghai, China. Particles were sampled under different weather and air quality conditions. Morphologies, compositions and mixing states of carbonaceous aerosols were investigated by transmission electron microscopy (TEM) coupled with energy-dispersive X-ray (EDX). Structures of some particles were verified using selected-area electron diffraction (SAED). Among the aerosol particles observed, carbonaceous aerosols were mainly categorized into four types: polymeric organic compound (POC), soot, tar ball, and biogenic particle. Based on the detailed TEM-EDX analysis, most of the particles were coated with secondary organic aerosols (SOA), which commonly formed through condensation or heterogeneous reactions of precursor gases on preexisting particles. Aged particles were associated with days with low wind velocities, showed complex structures, and were bigger in size. The internally mixed particles of sulphates, organics and soot were encountered frequently. Such internally mixed particles may be preferentially formed during a stagnated air mass during serious pollution events, such as on 13 November. Although relative number counts varied with different species, sulphates (38-71 %) and soot (11-22 %) constituted the most dominant species observed in the samples. However, soil-derived particles (68 %) were relatively more frequently observed on the sample collected on 12 November during a dust storm.
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资助项目	Ministry of Education and Science & Technology Commission of Shanghai Municipality[09160707700] ; Ministry of Education and Science & Technology Commission of Shanghai Municipality[10231203801] ; Ministry of Education and Science & Technology Commission of Shanghai Municipality[10JC1401600]
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
出版者	COPERNICUS GESELLSCHAFT MBH
WOS记录号	WOS:000300321500006
内容类型	期刊论文
源URL	[http://ir.fio.com.cn/handle/2SI8HI0U/4162]
专题	业务部门_海洋环境与数值模拟研究室
作者单位	1.Fudan Univ, Dept Environm Sci & Engn, Shanghai 200433, Peoples R China; 2.Fudan Univ, Res Inst Global Environm Change, Shanghai 200433, Peoples R China; 3.Shandong Univ, Environm Res Inst, Jinan 250100, Shandong, Peoples R China; 4.Dalian Univ Technol, Coll Environm & Life, Dalian 116024, Liaoning, Peoples R China; 5.State Ocean Adm, Inst Oceanog 1, Key Lab Data Anal & Applicat, Qingdao 266061, Peoples R China
推荐引用方式 GB/T 7714	Fu, H.,Zhang, M.,Li, W.,et al. Morphology, composition and mixing state of individual carbonaceous aerosol in urban Shanghai[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2012,12(2):693-707.
APA	Fu, H..,Zhang, M..,Li, W..,Chen, J..,Wang, L..,...&Wang, W..(2012).Morphology, composition and mixing state of individual carbonaceous aerosol in urban Shanghai.ATMOSPHERIC CHEMISTRY AND PHYSICS,12(2),693-707.
MLA	Fu, H.,et al."Morphology, composition and mixing state of individual carbonaceous aerosol in urban Shanghai".ATMOSPHERIC CHEMISTRY AND PHYSICS 12.2(2012):693-707.