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

doi:10.1016/j.chemosphere.2016.06.025

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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
	Tie, Xuexi 1,3,5; Wang, Yuesi 2; Tang, Guiqian 2; Xu, Ruiguang 3,4
刊名	CHEMOSPHERE
	2016-09-01
卷号	159 期号:2016 页码:647-658
关键词	2008 Beijing Olympic Emission Control Pm2.5 Ncp Nox And O-3
DOI	10.1016/j.chemosphere.2016.06.025
文献子类	Article
英文摘要	Five 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.
WOS关键词	SOURCE APPORTIONMENT ; PM2.5 ; VARIABILITY ; POLLUTION ; QUALITY ; MODEL ; HAZE
WOS研究方向	Environmental Sciences & Ecology
语种	英语
WOS记录号	WOS:000380417800078
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5667]
专题	地球环境研究所_粉尘与环境研究室
作者单位	1.CAS Ctr Excellence Urban Atmospher Environm CEUAE, Xiamen 361021, Peoples R China 2.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Natl Ctr Atmospher Res, Boulder, CO 80303 USA
推荐引用方式 GB/T 7714	Tie, Xuexi,Wang, Yuesi,Tang, Guiqian,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	Tie, Xuexi,Wang, Yuesi,Tang, Guiqian,&Xu, Ruiguang.(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	Tie, Xuexi,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.