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

doi:10.1016/j.atmosenv.2022.119018

HFCAS OpenIR

	Decadal changes in ozone in the lower boundary layer over Beijing, China
	Liu, Yusi 1,2; Tang, Guiqian 3,4,10; Liu, Baoxian 5,6; Zhang, Xiao 7; Li, Qihua 8; Hu, Qihou 9; Wang, Yu1,2 ; Yu, Miao 1,2; Sun, Yang 3; Ji, Dongsheng 3; Wang, Yinghong 3; Wang, Yuesi 3,4,10
	2022-04-15
发表期刊	ATMOSPHERIC ENVIRONMENT
ISSN	1352-2310
通讯作者	Tang, Guiqian(tgq@dq.cern.ac.cn) ; Liu, Baoxian(liubaoxian@bjmemc.com.cn)
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.
关键词	Ozone pollution Emission reduction NOx Vertical distribution Ozone formation sensitivity
DOI	10.1016/j.atmosenv.2022.119018
关键词[WOS]	SURFACE-OZONE ; METEOROLOGICAL INFLUENCES ; TROPOSPHERIC OZONE ; AIR-POLLUTION ; EMISSIONS ; INCREASE ; TRENDS ; EVOLUTION ; URBAN ; SITE
收录类别	SCI
语种	英语
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]
项目资助者	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
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000791329900004
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/130758
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 Meteorol Sci, State Key Lab Severe Weather, China Meteorol Adm, Beijing 100081, 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.Chinese Acad Sci, Hefei Inst Phys Sci, Hefei 230601, Peoples R China 10.Univ Chinese Acad Sci, Beijing 100049, 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).