IEECAS OpenIR  > 粉尘与环境研究室
Variation in black carbon concentration and aerosol optical properties in Beijing: Role of emission control and meteorological transport variability
Xia, Yunjie1,2,6; Wu, Yunfei1; Huang, Ru-Jin3,4; Xia, Xiangao2; Tang, Jie5; Wang, Mian5; Li, Jiwei1,6; Wang, Chaoying1,6; Zhou, Chang1,6; Zhang, Renjian1
Corresponding AuthorWu, Yunfei(wuyf@mail.iap.ac.cn)
2020-09-01
Source PublicationCHEMOSPHERE
ISSN0045-6535
Volume254Pages:14
AbstractBlack carbon (BC), which is a by-product with incomplete combustion of carbonaceous materials, can be used as an indicator of combustion emissions and is an important climate forcer. In this study, a spatial-temporal synthesis of BC aerosols and the affecting factors was conducted in urban Beijing. As observed, BC showed a spatial pattern with high concentration in south and low in north. BC concentration evidently decreased by approximately 61% between 2005 and 2017. From 2015 to 2017, the mass ratio of BC/PM2.5 dropped by 28%, which suggested a more efficient effect of control measures to BC than PM2.5. The BC/CO ratio dropped by 22%, which indicated the decreasing emission from fossil fuel sources. With regard to BC loading, the spectral dependence of absorption aerosol exhibited significant seasonal variations. High absorption Angstrom exponent (alpha) was observed during heating season, which reflected the increasing contribution of brown carbon (BrC) to light absorption. Backward trajectory analysis showed that the levels of BC and PM2.5 were high in Cluster-South and Cluster-West. BrC absorption was high in Cluster-West, Cluster-Northwest and Cluster-Northeast, due to the biomass and coal burning for domestic heating and aging processes on a regional scale. The effects of emission control and transport variability on pollutant variation were estimated on the basis of the cluster analysis. Results indicated that the effect of emission reduction was the major reason for the decrease of BC from 2015 to 2017, which resulted in a 34% reduction of BC concentration. Meanwhile, transport variability caused a 15% reduction. (C) 2020 Elsevier Ltd. All rights reserved.
KeywordBlack carbon Beijing Emission control Transport variability
DOI10.1016/j.chemosphere.2020.126849
WOS KeywordPOLYCYCLIC AROMATIC-HYDROCARBONS ; LIGHT-ABSORPTION MEASUREMENTS ; AIR-QUALITY IMPROVEMENT ; SOURCE APPORTIONMENT ; REGIONAL TRANSPORT ; 7-WAVELENGTH AETHALOMETER ; CHEMICAL-COMPOSITION ; HAZE POLLUTION ; BROWN CARBON ; CHINA
Indexed BySCI ; SCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2019YFA0606801] ; National Key Research and Development Program of China[2017YFC0209601] ; Natural Science Foundation of China[41775155] ; Natural Science Foundation of China[91644217] ; National Research Program for Key Issues in Air Pollution Control[DQGG0105] ; Jiangsu Collaborative Innovation Center for Climate Change
WOS Research AreaEnvironmental Sciences & Ecology
Funding OrganizationNational Key Research and Development Program of China ; Natural Science Foundation of China ; National Research Program for Key Issues in Air Pollution Control ; Jiangsu Collaborative Innovation Center for Climate Change
WOS SubjectEnvironmental Sciences
WOS IDWOS:000538150400090
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/14939
Collection粉尘与环境研究室
第四纪科学与全球变化卓越创新中心
Corresponding AuthorWu, Yunfei
Affiliation1.Chinese Acad Sci, Inst Atmospher Phys, Key Lab Reg Climate Environm Temperate East Asia, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Atmospher Phys, Key Lab Middle Atmosphere & Global Environm Obser, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, State Key Lab Loess & Quaternary Geol SKLLQG, Xian 710061, Peoples R China
4.Chinese Acad Sci, CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China
5.China Meteorol Adm, Meteorol Observat Ctr, Beijing 100081, Peoples R China
6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Xia, Yunjie,Wu, Yunfei,Huang, Ru-Jin,et al. Variation in black carbon concentration and aerosol optical properties in Beijing: Role of emission control and meteorological transport variability[J]. CHEMOSPHERE,2020,254:14.
APA Xia, Yunjie.,Wu, Yunfei.,Huang, Ru-Jin.,Xia, Xiangao.,Tang, Jie.,...&Zhang, Renjian.(2020).Variation in black carbon concentration and aerosol optical properties in Beijing: Role of emission control and meteorological transport variability.CHEMOSPHERE,254,14.
MLA Xia, Yunjie,et al."Variation in black carbon concentration and aerosol optical properties in Beijing: Role of emission control and meteorological transport variability".CHEMOSPHERE 254(2020):14.
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
[Xia, Yunjie]'s Articles
[Wu, Yunfei]'s Articles
[Huang, Ru-Jin]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xia, Yunjie]'s Articles
[Wu, Yunfei]'s Articles
[Huang, Ru-Jin]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xia, Yunjie]'s Articles
[Wu, Yunfei]'s Articles
[Huang, Ru-Jin]'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.