| Increasing atmospheric oxidizing capacity weakens emission mitigation effort in Beijing during autumn haze events | |
| Feng, Tian1,5; Zhao, Shuyu2; Bei, Naifang3; Liu, Suixin2; Li, Guohui2,4 | |
| Corresponding Author | Li, Guohui(ligh@ieecas.cn) |
| 2021-10-01 | |
| Source Publication | CHEMOSPHERE
 |
| ISSN | 0045-6535 |
| Volume | 281Pages:9 |
| Abstract | 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 |
| Keyword | Atmospheric oxidizing capacity Secondary aerosol PM2.5 WRF-Chem |
| DOI | 10.1016/j.chemosphere.2021.130855 |
| WOS Keyword | ORGANIC AEROSOL CONCENTRATIONS ; TIANJIN-HEBEI BTH ; MEXICO-CITY ; WINTERTIME HAZE ; NITRATE FORMATION ; GUANZHONG BASIN ; BLACK CARBON ; HONO SOURCES ; AIR-QUALITY ; RURAL SITE |
| Indexed By | SCI ; SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Environmental Sciences & Ecology |
| Funding Organization | 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 Subject | Environmental Sciences |
| WOS ID | WOS:000665491400069 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ieecas.cn/handle/361006/16838 |
| Collection | 粉尘与环境研究室 第四纪科学与全球变化卓越创新中心 |
| Corresponding Author | Li, Guohui |
| Affiliation | 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 |
| Recommended Citation 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. |
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