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DOI | 10.1016/j.atmosres.2017.02.014 |
Modelling study of boundary-layer ozone over northern China - Part II: Responses to emission reductions during the Beijing Olympics | |
Tang, Guiqian1,2; Zhu, Xiaowan1,3; Xin, Jinyuan1; Hu, Bo1; Song, Tao1; Sun, Yang1; Wang, Lili1; Wu, Fangkun1; Sun, Jie1; Cheng, Mengtian1; Chao, Na4; Li, Xin1,5; Wang, Yuesi1 | |
2017-09-01 | |
发表期刊 | ATMOSPHERIC RESEARCH |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2017 |
卷号 | 193 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | The implementation of emission reduction measures during the Olympics provided a valuable opportunity to study regional photochemical pollution over northern China. In this study, the fifth-generation Pennsylvania State University/National Centre for Atmospheric Research Mesoscale Model and Community Multiscale Air Quality model system was applied to conduct two sets of modelling analyses of the period from July 20 to September 20, 2008, to illustrate the influences of emission reduction measures on regional photochemical pollution over northern China during the Beijing Olympics. The results indicated that the implementation of emission control measures decreased the concentrations of ozone (O-3) precursors, namely nitrogen oxide (NOx) and volatile organic compounds (VOCs), throughout the boundary layer. The concentrations of these compounds were reduced by 45% in the central urban area of Beijing at the ground level. Although the average O3 concentration in the central urban area increased by more than 8 ppbv, the total oxidant concentration decreased significantly by more than 5 ppbv. Greater O-3 concentrations mainly occurred during periods with weak photochemical reactions. During periods of strong photochemical production, the O3 concentration decreased significantly due to a weakening vertical circulation between the lower and upper boundary layer. Consequently, the number of days when the O-3 concentration exceeded 100 ppbv decreased by 25% in Beijing. The emission control measures altered the sensitivity of the regional O-3 production. The coordinated control region of NOx and VOCs expanded, and the control region-of VOCs decreased in size. The reduction of non-point-source emissions, such as fugitive VOCs and vehicles, was more useful for controlling regional photochemical pollution over northern China. (C) 2017 Elsevier B.V. All rights reserved. |
英文关键词 | CMAQ Integrated process rate Emission control measures |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000403995200008 |
WOS关键词 | ATMOSPHERIC PARTICULATE MATTER ; SUMMER GAMES 2008 ; AIR-QUALITY ; MITIGATION MEASURES ; POLLUTION ; POLLUTANTS ; IMPACT |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/38473 |
专题 | 地球科学 |
作者单位 | 1.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China; 2.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 4.Environm Sci Res & Design Inst Zhejiang Prov, Hangzhou 310007, Zhejiang, Peoples R China; 5.Mentougou Dist Govt, Beijing 102300, Peoples R China |
推荐引用方式 GB/T 7714 | Tang, Guiqian,Zhu, Xiaowan,Xin, Jinyuan,et al. Modelling study of boundary-layer ozone over northern China - Part II: Responses to emission reductions during the Beijing Olympics[J]. ATMOSPHERIC RESEARCH,2017,193. |
APA | Tang, Guiqian.,Zhu, Xiaowan.,Xin, Jinyuan.,Hu, Bo.,Song, Tao.,...&Wang, Yuesi.(2017).Modelling study of boundary-layer ozone over northern China - Part II: Responses to emission reductions during the Beijing Olympics.ATMOSPHERIC RESEARCH,193. |
MLA | Tang, Guiqian,et al."Modelling study of boundary-layer ozone over northern China - Part II: Responses to emission reductions during the Beijing Olympics".ATMOSPHERIC RESEARCH 193(2017). |
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