Simulated Sensitivity of Ozone Generation to Precursors in Beijing during a High O-3 Episode

doi:10.1007/s00376-021-0270-4

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	Simulated Sensitivity of Ozone Generation to Precursors in Beijing during a High O-3 Episode
	Cui, Meng 1; An, Xingqin 2; Xing, Li 3; Li, Guohui 4; Tang, Guiqian 5; He, Jianjun 2; Long, Xin 6; Zhao, Shuman 5
刊名	ADVANCES IN ATMOSPHERIC SCIENCES
	2021-05-10
页码	15
关键词	Ozone (O-3) Sensitivity of ozone to its precursors WRF-Chem model EKMA Beijing
ISSN号	0256-1530
DOI	10.1007/s00376-021-0270-4
通讯作者	An, Xingqin(anxq@cma.gov.cn)
英文摘要	This study uses the WRF-Chem model combined with the empirical kinetic modeling method (EKMA curve) to study the compound pollution event in Beijing that happened in 13-23 May 2017. Sensitivity tests are conducted to analyze ozone sensitivity to its precursors, and to develop emission reduction measures. The results suggest that the model can accurately simulate the compound pollution process of photochemistry and haze. When VOCs and NOx were reduced by the same proportion, the effect of O-3 reduction at peak time was more obvious, and the effect during daytime was more significant than at night. The degree of change in ozone was peak time > daytime average. When reducing or increasing the ratio of precursors by 25% at the same time, the effect of reducing 25% VOCs on the average ozone concentration reduction was most significant. The degree of change in ozone decreased with increasing altitude, the location of the ozone maximum change shifted westward, and its range narrowed. As the altitude increases, the VOCs-limited zone decreases, VOCs sensitivity decreases, NOx sensitivity increases. The controlled area changed from near-surface VOCs-limited to high-altitude NOx-limited. Upon examining the EKMA curve, we have found that suburban and urban are sensitive to VOCs. The sensitivity tests indicate that when VOCs in suburban are reduced about 60%, the O-3-1h concentration could reach the standard, and when VOCs of the urban decreased by about 50%, the O-3-1h concentration could reach the standard. Thus, these findings could provide references for the control of compound air pollution in Beijing.
资助项目	Air Pollution Special Project of the Ministry of Science and Technology[2017YFCOZ10006] ; National Natural Science Foundation of China[41975173]
WOS关键词	EMISSIONS ; REGIMES ; MODEL
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000648842300001
资助机构	Air Pollution Special Project of the Ministry of Science and Technology ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/16403]
专题	地球环境研究所_粉尘与环境研究室
通讯作者	An, Xingqin
作者单位	1.PLA Troops 78127, Chengdu 610000, Peoples R China 2.Chinese Acad Meteorol Sci, Inst Atmospher Composit, Beijing 100081, Peoples R China 3.Shaanxi Normal Univ, Sch Geog & Tourism, Xian 710119, Peoples R China 4.Chinese Acad Sci, Inst Earth Environm, Xian 710061, Peoples R China 5.Chinese Acad Sci, Inst Atmospher Phys, Beijing 100029, Peoples R China 6.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen 518055, Peoples R China
推荐引用方式 GB/T 7714	Cui, Meng,An, Xingqin,Xing, Li,et al. Simulated Sensitivity of Ozone Generation to Precursors in Beijing during a High O-3 Episode[J]. ADVANCES IN ATMOSPHERIC SCIENCES,2021:15.
APA	Cui, Meng.,An, Xingqin.,Xing, Li.,Li, Guohui.,Tang, Guiqian.,...&Zhao, Shuman.(2021).Simulated Sensitivity of Ozone Generation to Precursors in Beijing during a High O-3 Episode.ADVANCES IN ATMOSPHERIC SCIENCES,15.
MLA	Cui, Meng,et al."Simulated Sensitivity of Ozone Generation to Precursors in Beijing during a High O-3 Episode".ADVANCES IN ATMOSPHERIC SCIENCES (2021):15.