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Changes in Source-Specific Black Carbon Aerosol and the Induced Radiative Effects Due to the COVID-19 Lockdown

文献类型：期刊论文

作者Liu, Huikun1,2; Wang, Qiyuan1,3,4; Ye, Jianhuai5; Su, Xiaoli1; Zhang, Ting1; Zhang, Yong1; Tian, Jie1; Dong, Yunsheng6; Chen, Yang7; Zhu, Chongshu1
刊名GEOPHYSICAL RESEARCH LETTERS
出版日期2021-07-16
卷号48
ISSN号0094-8276
DOI10.1029/2021GL092987
通讯作者Wang, Qiyuan(wangqy@ieecas.cn) ; Cao, Junji(cao@loess.llqg.ac.cn)
英文摘要The impacts of anthropogenic emissions on the reduction of source-specific equivalent black carbon (eBC) aerosols and their direct radiative effects (DREs) were investigated during the lockdown of the coronavirus outbreak in a megacity of China in 2020. Five eBC sources were identified using a hybrid environmental receptor model. Results showed that biomass burning, traffic-related emissions, and coal combustion were the dominant contributors to eBC. The generalized additive model indicated that the reduction of traffic-related eBC during the lockdown was entirely attributed to the decrease of emissions. Decreased biomass-burning activities and favorable meteorological factors are both important drivers for the biomass-burning eBC reduction during the lockdown. A radiative transfer model showed that the DRE efficiency of eBC from biomass burning was the strongest, followed by coal combustion and traffic-related emissions. This study highlights that aggressive reduction in the consumption of residential solid fuels would be effective in achieving climate change mitigation.
WOS关键词SOURCE APPORTIONMENT ; OPTICAL-PROPERTIES ; EMISSION INVENTORIES ; PARTICULATE MATTER ; BROWN CARBON ; URBAN ; PM2.5 ; CHINA ; PARTICLES ; TIME
资助项目Key Research and Development Program of Shaanxi Province[2018-ZDXM3-01] ; Sino-Swiss Cooperation on Air Pollution for Better Air[7F-09802.01.02] ; West Light Foundation of the Chinese Academy of Sciences[XAB2018B03] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2019402] ; National Science Fund for Distinguished Young Scholars[41625015]
WOS研究方向Geology
语种英语
出版者AMER GEOPHYSICAL UNION
WOS记录号WOS:000694024100024
资助机构Key Research and Development Program of Shaanxi Province ; Sino-Swiss Cooperation on Air Pollution for Better Air ; West Light Foundation of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; National Science Fund for Distinguished Young Scholars
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/125347]  
专题中国科学院合肥物质科学研究院
通讯作者Wang, Qiyuan; Cao, Junji
作者单位1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.CAS Ctr Excellence Quaternary Sci & Global Change, Xian, Peoples R China
4.Natl Observat & Res Stn, Guanzhong Plain Ecol Environm Change & Comprehens, Xian, Peoples R China
5.Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA
6.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, Hefei, Peoples R China
7.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Huikun,Wang, Qiyuan,Ye, Jianhuai,et al. Changes in Source-Specific Black Carbon Aerosol and the Induced Radiative Effects Due to the COVID-19 Lockdown[J]. GEOPHYSICAL RESEARCH LETTERS,2021,48.
APA Liu, Huikun.,Wang, Qiyuan.,Ye, Jianhuai.,Su, Xiaoli.,Zhang, Ting.,...&Cao, Junji.(2021).Changes in Source-Specific Black Carbon Aerosol and the Induced Radiative Effects Due to the COVID-19 Lockdown.GEOPHYSICAL RESEARCH LETTERS,48.
MLA Liu, Huikun,et al."Changes in Source-Specific Black Carbon Aerosol and the Induced Radiative Effects Due to the COVID-19 Lockdown".GEOPHYSICAL RESEARCH LETTERS 48(2021).

入库方式： OAI收割

来源：合肥物质科学研究院

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