IEECAS OpenIR  > 粉尘与环境研究室
The formation and evolution of parent and oxygenated polycyclic aromatic hydrocarbons during a severe winter haze-fog event over Xi'an, China
Lei, Yali1,2; Shen, Zhenxing1,2; He, Kun1; Li, Lijuan2; Qin, Yiming3; Zeng, Yaling1; Li, Jianjun2; Xu, Hongmei1; Ma, Yongjing4,5; Zhang, Tian1; Yang, Liu1; Zhang, Ningning2; Cao, Junji2
Corresponding AuthorShen, Zhenxing(zxshen@mail.xjtu.edu.cn)
2020-10-31
Source PublicationENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN0944-1344
Pages8
AbstractIn this study, 3- or 4-h high time-resolved PM2.5 was observed during a severe winter haze-fog event (1 to 6 January 2017) to investigate the formation and evolution of parent polycyclic aromatic hydrocarbons (pPAHs) and oxygenated polycyclic aromatic hydrocarbons (OPAHs) in Xi'an, a typical city in northwestern China. Three episodes (episode I, episode II, and rainy day (EI, EII, and RD)) have been identified during this haze-fog event. Nine water-soluble ions, 8 carbonaceous fractions, 18 pPAHs, and 3 OPAHs in PM2.5 were measured. pPAHs showed two peaks at around 12:00 local standard time (LST) and 24:00 LST and two troughs at around 2:00 LST and 18:00 LST during EI. However, the OPAHs presented highest at around 18:00 LST and lowest at around 2:00 LST. During EII, pPAHs and OPAHs displayed similar diurnal variations with the highest values at noon but lowest values at around 2:00-5:00 LST. In addition, no obvious diurnal variations of pPAHs and OPAHs were observed during RD were absent during RD. Diurnal variations of pPAH ring distributions demonstrated coal combustion, and vehicle emissions contributed to pPAHs for three episodes, which is further confirmed by diagnostic ratio results. High oxygenation (R-o) rates were found during the sampling time, which favored OPAH formation. The study herein indicates that OPAH formation through complex atmospheric reactions provides us new insights into the severe haze-fog events.
KeywordpPAHs OPAHs High-time resolution Chemical aging Xi’ an
DOI10.1007/s11356-020-10923-9
WOS KeywordFINE PARTICULATE MATTER ; PM2.5 CONCENTRATIONS ; SIZE DISTRIBUTION ; AMBIENT AEROSOL ; HEALTH-RISK ; PAHS ; URBAN ; EPISODES ; IDENTIFICATION ; INVENTORY
Indexed BySCI ; SCI
Language英语
Funding ProjectNatural Science Foundation of China[41877383] ; Natural Science Foundation of China[91644219] ; Natural Science Foundation of China[21661132005] ; SKLLQG, the Chinese Academy of Sciences[SKLLQG1919] ; Shaanxi province key research and development plan key industrial chain (group) project[2018ZDCXL-SF-0205]
WOS Research AreaEnvironmental Sciences & Ecology
Funding OrganizationNatural Science Foundation of China ; SKLLQG, the Chinese Academy of Sciences ; Shaanxi province key research and development plan key industrial chain (group) project
WOS SubjectEnvironmental Sciences
WOS IDWOS:000583130100001
PublisherSPRINGER HEIDELBERG
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/15483
Collection粉尘与环境研究室
Corresponding AuthorShen, Zhenxing
Affiliation1.Xi An Jiao Tong Univ, Environm Sci & Engn, Xian 710049, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
3.Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA
4.Lanzhou Univ, Coll Atmospher Sci, Key Lab Arid Climat Change & Reducing Disaster Ga, Lanzhou 730000, Peoples R China
5.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China
Recommended Citation
GB/T 7714
Lei, Yali,Shen, Zhenxing,He, Kun,et al. The formation and evolution of parent and oxygenated polycyclic aromatic hydrocarbons during a severe winter haze-fog event over Xi'an, China[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2020:8.
APA Lei, Yali.,Shen, Zhenxing.,He, Kun.,Li, Lijuan.,Qin, Yiming.,...&Cao, Junji.(2020).The formation and evolution of parent and oxygenated polycyclic aromatic hydrocarbons during a severe winter haze-fog event over Xi'an, China.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,8.
MLA Lei, Yali,et al."The formation and evolution of parent and oxygenated polycyclic aromatic hydrocarbons during a severe winter haze-fog event over Xi'an, China".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2020):8.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Lei, Yali]'s Articles
[Shen, Zhenxing]'s Articles
[He, Kun]'s Articles
Baidu academic
Similar articles in Baidu academic
[Lei, Yali]'s Articles
[Shen, Zhenxing]'s Articles
[He, Kun]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Lei, Yali]'s Articles
[Shen, Zhenxing]'s Articles
[He, Kun]'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.