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Simulated Sensitivity of Ozone Generation to Precursors in Beijing during a High O-3 Episode
Cui, Meng1; An, Xingqin2; Xing, Li3; Li, Guohui4; Tang, Guiqian5; He, Jianjun2; Long, Xin6; Zhao, Shuman5
Corresponding AuthorAn, Xingqin(anxq@cma.gov.cn)
2021-05-10
Source PublicationADVANCES IN ATMOSPHERIC SCIENCES
ISSN0256-1530
Pages15
AbstractThis 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.
KeywordOzone (O-3) Sensitivity of ozone to its precursors WRF-Chem model EKMA Beijing
DOI10.1007/s00376-021-0270-4
WOS KeywordEMISSIONS ; REGIMES ; MODEL
Indexed BySCI ; SCI
Language英语
Funding ProjectAir Pollution Special Project of the Ministry of Science and Technology[2017YFCOZ10006] ; National Natural Science Foundation of China[41975173]
WOS Research AreaMeteorology & Atmospheric Sciences
Funding OrganizationAir Pollution Special Project of the Ministry of Science and Technology ; National Natural Science Foundation of China
WOS SubjectMeteorology & Atmospheric Sciences
WOS IDWOS:000648842300001
PublisherSCIENCE PRESS
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/16404
Collection粉尘与环境研究室
Corresponding AuthorAn, Xingqin
Affiliation1.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
Recommended Citation
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.
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