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

文献类型：期刊论文

作者Feng, Tian1,5; Zhao, Shuyu2; Bei, Naifang3; Liu, Suixin2; Li, Guohui2,4
刊名CHEMOSPHERE
出版日期2021-10-01
卷号281页码:9
ISSN号0045-6535
关键词Atmospheric oxidizing capacity Secondary aerosol PM2.5 WRF-Chem
DOI10.1016/j.chemosphere.2021.130855
通讯作者Li, Guohui(ligh@ieecas.cn)
英文摘要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
WOS关键词ORGANIC AEROSOL CONCENTRATIONS ; TIANJIN-HEBEI BTH ; MEXICO-CITY ; WINTERTIME HAZE ; NITRATE FORMATION ; GUANZHONG BASIN ; BLACK CARBON ; HONO SOURCES ; AIR-QUALITY ; RURAL SITE
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
语种英语
出版者PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号WOS:000665491400069
资助机构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
源URL[http://ir.ieecas.cn/handle/361006/16837]  
专题地球环境研究所_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.

入库方式： OAI收割

来源：地球环境研究所

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