IEECAS OpenIR  > 粉尘与环境研究室
Size distribution and source of black carbon aerosol in urban Beijing during winter haze episodes
Wu, Yunfei1; Wang, Xiaojia1; Tao, Jun2; Huang, Rujin3; Tian, Ping4; Cao, Junji3; Zhang, Leiming5; Ho, Kin-Fai6; Han, Zhiwei1; Zhang, Renjian1
AbstractBlack carbon (BC) has important impact on climate and environment due to its light absorption ability, which greatly depends on its physicochemical properties including morphology, size and mixing state. The size distribution of the refractory BC (rBC) was investigated in urban Beijing in the late winter of 2014, during which there were frequent haze events, through analysis of measurements obtained using a single-particle soot photometer (SP2). By assuming void-free rBC with a density of 1.8 g cm(-3), the mass of the rBC showed an approximately lognormal distribution as a function of the volume-equivalent diameter (VED), with a peak diameter of 213 nm. Larger VED values of the rBC were observed during polluted periods than on clean days, implying an alteration in the rBC sources, as the size distribution of the rBC from a certain source was relative stable, and VED of an individual rBC varied little once it was emitted into the atmosphere. The potential source contribution function analysis showed that air masses from the south to east of the observation site brought higher rBC loadings with more thick coatings and larger core sizes. The mean VED of the rBC presented a significant linear correlation with the number fraction of thickly coated rBC, extrapolating to be similar to 150 nm for the completely non-coated or thinly coated rBC. It was considered as the typical mean VED of the rBC from local traffic sources in this study. Local traffic was estimated to contribute 35 to 100% of the hourly rBC mass concentration with a mean of 59% during the campaign. Lower local traffic contributions were observed during polluted periods, suggesting increasing contributions from other sources (e.g., coal combustion and biomass burning) to the rBC. Thus, the heavy pollution in Beijing was greatly influenced by other sources in addition to the local traffic.
WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI
WOS Research AreaMeteorology & Atmospheric Sciences
WOS SubjectMeteorology & Atmospheric Sciences
WOS IDWOS:000404771300005
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Chinese Acad Sci, Inst Atmospher Phys, CAS Key Lab Reg Climate Environm Temperate East A, Beijing, Peoples R China
2.Minist Environm Protect, South China Inst Environm Sci, Guangzhou, Guangdong, Peoples R China
3.Chinese Acad Sci, Inst Earth Environm, CAS Key Lab Aerosol Chem & Phys, Xian, Peoples R China
4.Beijing Weather Modificat Off, Beijing, Peoples R China
5.Environm & Climate Change Canada, Air Qual Res Div, Sci & Technol Branch, Toronto, ON, Canada
6.Chinese Univ Hong Kong, Jockey Club Sch Publ Hlth & Primary Care, Hong Kong, Hong Kong, Peoples R China
Recommended Citation
GB/T 7714
Wu, Yunfei,Wang, Xiaojia,Tao, Jun,et al. Size distribution and source of black carbon aerosol in urban Beijing during winter haze episodes[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(12):7965-7975.
APA Wu, Yunfei.,Wang, Xiaojia.,Tao, Jun.,Huang, Rujin.,Tian, Ping.,...&Zhang, Renjian.(2017).Size distribution and source of black carbon aerosol in urban Beijing during winter haze episodes.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(12),7965-7975.
MLA Wu, Yunfei,et al."Size distribution and source of black carbon aerosol in urban Beijing during winter haze episodes".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.12(2017):7965-7975.
Files in This Item:
File Name/Size DocType Version Access License
Size distribution an(1258KB)期刊论文出版稿开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wu, Yunfei]'s Articles
[Wang, Xiaojia]'s Articles
[Tao, Jun]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wu, Yunfei]'s Articles
[Wang, Xiaojia]'s Articles
[Tao, Jun]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wu, Yunfei]'s Articles
[Wang, Xiaojia]'s Articles
[Tao, Jun]'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.