IEECAS OpenIR  > 粉尘与环境研究室
Identification of chemical compositions and sources of atmospheric aerosols in Xi'an, inland China during two types of haze events
Li, Jianjun1,2; Wang, Gehui1,2,3,4; Ren, Yanqin1,5; Wang, Jiayuan1,5; Wu, Can1,5; Han, Yanni1,5; Zhang, Lu1,5; Cheng, Chunlei1,5; Meng, Jingjing1,5
2016-10-01
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
Volume566Issue:2016Pages:230-237
SubtypeArticle
AbstractHigh time resolution (1 h) of TSP filter samples was collected in Xi'an in inland China from December 5 to 13, 2012, during which a 9-day long of haze episode occurred. The hazy days were classified as two types, i.e., Light-haze period with moderate degradation in visibility (5-10 km) and relatively dry conditions (RH: 53 +/- 19%) and Severe-haze period with a daily visibility less than 5 km and humid conditions (RH: 73 +/- 14%). TSP in the two periods (415 +/- 205 and 530 +/- 180 mu g m(-3) in Light-haze and Severe-haze periods, respectively) was comparable, but crustal Fe and Ca elements presented higher concentrations and strong correlation (R-2 = 0.72) with TSP in Light-haze period. SO42-, NO3- and NH4+ in Light-haze period were 16 +/- 5.9, 12 +/- 6.7 and 4.1 +/- 2.8 mu gm(-3), respectively, and increased dramatically to 51 +/- 15, 44 +/- 9.7 and 23 +/- 5.6 mu gm(-3) in Severe-haze period. Contributions of Fe and Ca to TSP decreased from 9.2% in Light-haze period to 5.3% in Severehaze period, but those of SO42-, NO3- and NH4+ increased from 3.8%, 2.9% and 1.0% in Light-haze period to 9.6%, 8.3% and 4.4% in Severe-haze period, respectively. These results suggest that dust-derived particles were more significant in Light-haze period while secondary aerosols were more important in Severe-haze period. Hopanes (33 +/- 24 and 38 +/- 29 ngm(-3) in Light-haze and Severe-haze periods, respectively) during the two types of haze periods are comparable, indicating that differences in contribution of primary organic aerosols from fossil fuel combustions to TSP were insignificant. In contrast, the ratio of secondary organic aerosols (e.g., o-phthalic acid) to EC was much higher in Severe-haze period (5.8 +/- 2.7 ng mu g(-1)) than in Light-haze period (3.4 +/- 2.1 ng mu g(-1)), probably indicating that the humid conditions in Severe-haze period are favorable for secondary organic aerosol formation. (C) 2016 Elsevier B.V. All rights reserved.
KeywordTsp And Haze Relative Humidity Primary And Secondary Organic Aerosols Sulfate Nitrate And Dust
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1016/j.scitotenv.2016.05.057
WOS KeywordPOLYCYCLIC AROMATIC-HYDROCARBONS ; SECONDARY ORGANIC AEROSOL ; FINE PARTICULATE MATTER ; DICARBOXYLIC-ACIDS ; ISOTOPIC COMPOSITIONS ; KETOCARBOXYLIC ACIDS ; SOURCE APPORTIONMENT ; FORMATION MECHANISM ; SEASONAL-CHANGES ; LOESS PLATEAU
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000381060900026
Citation statistics
Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/5704
Collection粉尘与环境研究室
Affiliation1.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
3.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710079, Peoples R China
4.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Urban Atmospher Environm, Xiamen 361021, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li, Jianjun,Wang, Gehui,Ren, Yanqin,et al. Identification of chemical compositions and sources of atmospheric aerosols in Xi'an, inland China during two types of haze events[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2016,566(2016):230-237.
APA Li, Jianjun.,Wang, Gehui.,Ren, Yanqin.,Wang, Jiayuan.,Wu, Can.,...&Meng, Jingjing.(2016).Identification of chemical compositions and sources of atmospheric aerosols in Xi'an, inland China during two types of haze events.SCIENCE OF THE TOTAL ENVIRONMENT,566(2016),230-237.
MLA Li, Jianjun,et al."Identification of chemical compositions and sources of atmospheric aerosols in Xi'an, inland China during two types of haze events".SCIENCE OF THE TOTAL ENVIRONMENT 566.2016(2016):230-237.
Files in This Item:
File Name/Size DocType Version Access License
Identification of ch(1744KB)期刊论文出版稿开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Li, Jianjun]'s Articles
[Wang, Gehui]'s Articles
[Ren, Yanqin]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li, Jianjun]'s Articles
[Wang, Gehui]'s Articles
[Ren, Yanqin]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li, Jianjun]'s Articles
[Wang, Gehui]'s Articles
[Ren, Yanqin]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.