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

doi:10.1029/2021GL092987

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 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
刊名	GEOPHYSICAL RESEARCH LETTERS
	2021-07-16
卷号	48 期号:13 页码:12
ISSN号	0094-8276
DOI	10.1029/2021GL092987
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.
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关键词	SOURCE APPORTIONMENT ; OPTICAL-PROPERTIES ; EMISSION INVENTORIES ; PARTICULATE MATTER ; BROWN CARBON ; URBAN ; PM2.5 ; CHINA ; PARTICLES ; TIME
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
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/17010]
专题	地球环境研究所_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.