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Analysis of a long-term measurement of air pollutants (2007-2011) in North China Plain (NCP); Impact of emission reduction during the Beijing Olympic Games
Xu, Ruiguang1,2; Tang, Guiqian3; Wang, Yuesi3; Tie, Xuexi1,4,5
2016-09-01
Source PublicationCHEMOSPHERE
Volume159Issue:2016Pages:647-658
SubtypeArticle
AbstractFive years measurements were used to evaluate the effect of emission controls on the changes of air pollutants in Beijing and its surroundings in the NCP during 2008 Olympic Games (2008OG). The major challenge of this study was to filter out the effect of variability of meteorological conditions, when compared the air pollutants during the game to non-game period. We used four-year (2007, 2009-2011) average as the Non-2008OG to smooth the temporal variability caused by meteorological parameters. To study the spatial variability and regional transport, 6 sites (urban, rural, a mega city, a heavy industrial city, and a remote site) were selected. The result showed that the annually meteorological variability was significantly reduced. Such as, in BJ the differences between 2008OG and 5-years averaged values were 2.7% for relative humidity and 0.6% for wind speed. As a result, the anomaly of air pollutants between 2008OG and Non-2008OG can largely attribute to the emission control. The comparison showed that the major pollutants (PM10, PM2.5, NO, NOx) at the 6 sites in 2008OG were consistently lowered. For example, PM2.5 in BJ decreased from 75 to 45 mu g/m(3) (40% reduction). However, the emission controls had minor effect on O-3 concentrations (1% reduction). In contrast, the O-3 precursor (NOx) reduced from 19.7 to 13.2 ppb (33% reduction). The in-sensitivity between NOx and O-3 suggested that the O-3 formation was under VOCs control condition in NCP, showing that strong VOC emission control is needed in order to significantly reduce O-3 concentration in the region. (C) 2016 Elsevier Ltd. All rights reserved.
Keyword2008 Beijing Olympic Emission Control Pm2.5 Ncp Nox And O-3
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1016/j.chemosphere.2016.06.025
WOS KeywordSOURCE APPORTIONMENT ; PM2.5 ; VARIABILITY ; POLLUTION ; QUALITY ; MODEL ; HAZE
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000380417800078
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/5667
Collection粉尘与环境研究室
Affiliation1.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China
4.CAS Ctr Excellence Urban Atmospher Environm CEUAE, Xiamen 361021, Peoples R China
5.Natl Ctr Atmospher Res, Boulder, CO 80303 USA
Recommended Citation
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Xu, Ruiguang,Tang, Guiqian,Wang, Yuesi,et al. Analysis of a long-term measurement of air pollutants (2007-2011) in North China Plain (NCP); Impact of emission reduction during the Beijing Olympic Games[J]. CHEMOSPHERE,2016,159(2016):647-658.
APA Xu, Ruiguang,Tang, Guiqian,Wang, Yuesi,&Tie, Xuexi.(2016).Analysis of a long-term measurement of air pollutants (2007-2011) in North China Plain (NCP); Impact of emission reduction during the Beijing Olympic Games.CHEMOSPHERE,159(2016),647-658.
MLA Xu, Ruiguang,et al."Analysis of a long-term measurement of air pollutants (2007-2011) in North China Plain (NCP); Impact of emission reduction during the Beijing Olympic Games".CHEMOSPHERE 159.2016(2016):647-658.
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