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

doi:10.1029/2021GL092987

IEECAS OpenIR > 粉尘与环境研究室

	Changes in Source-Specific Black Carbon Aerosol and the Induced Radiative Effects Due to the COVID-19 Lockdown
	Liu, Huikun 1,2; Wang, Qiyuan 1,3,4; Ye, Jianhuai 5; Su, Xiaoli 1; Zhang, Ting 1; Zhang, Yong 1; Tian, Jie 1; Dong, Yunsheng 6; Chen, Yang 7; Zhu, Chongshu 1; Han, Yongming 1,3,4; Cao, Junji 1,3
通讯作者	Wang, Qiyuan(wangqy@ieecas.cn) ; Cao, Junji(cao@loess.llqg.ac.cn)
	2021-07-16
发表期刊	GEOPHYSICAL RESEARCH LETTERS
ISSN	0094-8276
卷号	48 期号:13 页码:12
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.
DOI	10.1029/2021GL092987
关键词[WOS]	SOURCE APPORTIONMENT ; OPTICAL-PROPERTIES ; EMISSION INVENTORIES ; PARTICULATE MATTER ; BROWN CARBON ; URBAN ; PM2.5 ; CHINA ; PARTICLES ; TIME
收录类别	SCI ; SCI
语种	英语
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
项目资助者	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
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000694024100024
出版者	AMER GEOPHYSICAL UNION
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/17011
专题	粉尘与环境研究室
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(13):12.
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(13),12.
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 48.13(2021):12.