Increasing atmospheric oxidizing capacity weakens emission mitigation effort in Beijing during autumn haze events

doi:10.1016/j.chemosphere.2021.130855

IEECAS OpenIR > 粉尘与环境研究室

	Increasing atmospheric oxidizing capacity weakens emission mitigation effort in Beijing during autumn haze events
	Feng, Tian 1,5; Zhao, Shuyu 2; Bei, Naifang 3; Liu, Suixin 2; Li, Guohui 2,4
通讯作者	Li, Guohui(ligh@ieecas.cn)
	2021-10-01
发表期刊	CHEMOSPHERE
ISSN	0045-6535
卷号	281 页码:9
摘要	Although strict mitigation measures have been implemented since 2013 in Beijing-Tianjin-Hebei (BTH), China, air pollution still frequently occurs. Observations reveal that during pollution episodes in autumn, fine particulate matter (PM2.5) concentrations have not decreased, and particularly, ozone (O-3) concentrations have increased remarkably from 2013 to 2015 in Beijing. Additionally, a concurrence of O-3 and particulate pollution with high secondary aerosol contributions has been observed frequently, indicating high atmospheric oxidizing capacity (AOC) during particulate pollution. The WRF-Chem model simulations show elevated O-3 concentrations and high fractions of oxygenated secondary aerosols (OSA) in PM2.5 (0.53-0.73) during the severe pollution period. During daytime there exhibits an AOC-sufficient regime with the persistently high OSA fraction and an AOC-deficient regime with varied OSA fractions, separated by the O-3 level of 80 mu g m(-3). Our results suggest that increasing AOC can considerably weaken the emission mitigation effort by enhancing the secondary aerosol formation
关键词	Atmospheric oxidizing capacity Secondary aerosol PM2.5 WRF-Chem
DOI	10.1016/j.chemosphere.2021.130855
关键词[WOS]	ORGANIC AEROSOL CONCENTRATIONS ; TIANJIN-HEBEI BTH ; MEXICO-CITY ; WINTERTIME HAZE ; NITRATE FORMATION ; GUANZHONG BASIN ; BLACK CARBON ; HONO SOURCES ; AIR-QUALITY ; RURAL SITE
收录类别	SCI ; SCI
语种	英语
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDB40030203] ; National Key R&D Plan (Quantitative Relationship and Regulation Principle between Regional Oxidizing capacity of Atmosphere and Air Quality)[2017YFC0210000] ; National Natural Science Foundation of China[41703127] ; National Natural Science Foundation of China[41430424] ; National Natural Science Foundation of China[41661144020] ; Natural Science Foundation of Zhejiang Province[LZ20D050001] ; K. C. Wong Magna Fund in Ningbo University
WOS研究方向	Environmental Sciences & Ecology
项目资助者	Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key R&D Plan (Quantitative Relationship and Regulation Principle between Regional Oxidizing capacity of Atmosphere and Air Quality) ; National Natural Science Foundation of China ; Natural Science Foundation of Zhejiang Province ; K. C. Wong Magna Fund in Ningbo University
WOS类目	Environmental Sciences
WOS记录号	WOS:000665491400069
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：17[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/361006/16838
专题	粉尘与环境研究室第四纪科学与全球变化卓越创新中心
通讯作者	Li, Guohui
作者单位	1.Ningbo Univ, Dept Geog & Spatial Informat Tech, Ningbo 315211, Zhejiang, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, SKLLQG, Xian 710061, Shaanxi, Peoples R China 3.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710049, Shaanxi, Peoples R China 4.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Shaanxi, Peoples R China 5.Ningbo Univ, Inst East China Sea, Ningbo 315211, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Feng, Tian,Zhao, Shuyu,Bei, Naifang,et al. Increasing atmospheric oxidizing capacity weakens emission mitigation effort in Beijing during autumn haze events[J]. CHEMOSPHERE,2021,281:9.
APA	Feng, Tian,Zhao, Shuyu,Bei, Naifang,Liu, Suixin,&Li, Guohui.(2021).Increasing atmospheric oxidizing capacity weakens emission mitigation effort in Beijing during autumn haze events.CHEMOSPHERE,281,9.
MLA	Feng, Tian,et al."Increasing atmospheric oxidizing capacity weakens emission mitigation effort in Beijing during autumn haze events".CHEMOSPHERE 281(2021):9.