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Decadal changes in ozone in the lower boundary layer over Beijing, China

文献类型：期刊论文

作者Liu, Yusi2,10; Tang, Guiqian3,4,9; Liu, Baoxian5,6; Zhang, Xiao7; Li, Qihua8; Hu, Qihou1; Wang, Yu2,10; Yu, Miao2,10; Sun, Yang3; Ji, Dongsheng3
刊名ATMOSPHERIC ENVIRONMENT
出版日期2022-04-15
卷号275
关键词Ozone pollution Emission reduction NOx Vertical distribution Ozone formation sensitivity
ISSN号1352-2310
DOI10.1016/j.atmosenv.2022.119018
通讯作者Tang, Guiqian(tgq@dq.cern.ac.cn) ; Liu, Baoxian(liubaoxian@bjmemc.com.cn)
英文摘要Since NOx has decreased significantly, ozone formation sensitivity in urban areas has gradually shifted from VOC-limited to NOx-limited. Ozone is usually formed at high altitudes. However, due to a lack of vertical gradient observation data support, the evidence of high-altitude sensitivity change is still not conclusive. To confirm this issue, ozone and NOx were observed at three heights (8 m, 160 m, and 280 m) from a 325 m tower in Beijing from 2019 to 2020. Combined with the NO2 and HCHO column concentrations, the ozone formation sensitivity transition was determined, and it was proposed that NOx control could effectively deal with high ozone concentrations. By comparing the observations from 2009 to 2010, near-surface NOx and ozone concentrations were found to have changed. A large decrease in NOx (-20 ppbv) and increase in ozone (19 ppbv) indicated that the weakening of the NO titration effect was the main cause of the increase. To remove the influence of the titration effect, the change in Ox (Ox = O3+NO2) was analyzed and found to have increased by 6 ppbv. Local formation was not the main reason for Ox growth. After strict emission standards, the proportion of primary NO2 and southward short-distance transport increased, which were two key reasons for the Ox increase. In addition, the boundary layer height increased by 208 m, and the surface relative humidity decreased by 6%. Meteorological conditions have become more conducive to ozone formation. This study shows that NOx emission reduction is conducive to controlling high-level ozone pollution. With the in-depth development of NOx emission reduction, the near-surface ozone will also significantly decrease. This study also highlights the importance of strict controls on diesel vehicles and motor vehicle numbers.
WOS关键词SURFACE-OZONE ; METEOROLOGICAL INFLUENCES ; TROPOSPHERIC OZONE ; AIR-POLLUTION ; EMISSIONS ; INCREASE ; TRENDS ; EVOLUTION ; URBAN ; SITE
资助项目Beijing Major Science and Tech-nology Project[Z211100004321006] ; National Natural Science Foundation of China[42177081] ; National Natural Science Foundation of China[41877312] ; National Natural Science Foundation of China[42175128] ; Bei-jing Municipal Natural Science Foundation[8222075] ; Culti-vating Project of Strategic Priority Research Program of Chinese Academy of Sciences[XDPB1901] ; Youth Cross Team Scientific Research Project of the Chinese Academy of Sciences[JCTD-2021-10] ; National Research Program for Key Issues in Air Pollution Control[DQGG202101] ; Basic Research Fund of CAMS[2020Z002]
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:000791329900004
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构Beijing Major Science and Tech-nology Project ; National Natural Science Foundation of China ; Bei-jing Municipal Natural Science Foundation ; Culti-vating Project of Strategic Priority Research Program of Chinese Academy of Sciences ; Youth Cross Team Scientific Research Project of the Chinese Academy of Sciences ; National Research Program for Key Issues in Air Pollution Control ; Basic Research Fund of CAMS
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/130757]  
专题中国科学院合肥物质科学研究院
通讯作者Tang, Guiqian; Liu, Baoxian
作者单位1.Chinese Acad Sci, Hefei Inst Phys Sci, Hefei 230601, Peoples R China
2.Chinese Acad Meteorol Sci, Key Lab Atmospher Chem, China Meteorol Adm, Beijing 100081, Peoples R China
3.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China
4.Chinese Acad Sci, Ctr Excellence Urban Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China
5.Tsinghua Univ, Sch Environm, Beijing 100084, Peoples R China
6.Beijing Municipal Environm Monitoring Ctr, Beijing Key Lab Airborne Particulate Matter Monit, Beijing 100048, Peoples R China
7.Yunnan Univ, Dept Atmospher Sci, Kunming 650091, Yunnan, Peoples R China
8.Anhui Univ, Inst Phys Sci, Hefei 230601, Peoples R China
9.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
10.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, China Meteorol Adm, Beijing 100081, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Yusi,Tang, Guiqian,Liu, Baoxian,et al. Decadal changes in ozone in the lower boundary layer over Beijing, China[J]. ATMOSPHERIC ENVIRONMENT,2022,275.
APA Liu, Yusi.,Tang, Guiqian.,Liu, Baoxian.,Zhang, Xiao.,Li, Qihua.,...&Wang, Yuesi.(2022).Decadal changes in ozone in the lower boundary layer over Beijing, China.ATMOSPHERIC ENVIRONMENT,275.
MLA Liu, Yusi,et al."Decadal changes in ozone in the lower boundary layer over Beijing, China".ATMOSPHERIC ENVIRONMENT 275(2022).

入库方式： OAI收割

来源：合肥物质科学研究院

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