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Short Description: Hebei and Shandong Provinces and the Tianjin Municipality all exert significant influence on Beijing's air quality. During ...

Content Inside: ARTICLE IN PRESS Atmospheric Environment 41 (2007) 480­492 www.elsevier.com/locate/atmosenv Air quality during the 2008 Beijing Olympic Games David G. Streetsa,Ă, Joshua S. Fub, Carey J. Jangc, Jiming Haod, Kebin Hed, Xiaoyan Tange, Yuanhang Zhange, Zifa Wangf, Zuopan Lib, Qiang Zhanga,d, Litao Wangd, Binyu Wangc, Carolyne Yua aDecision and Information Sciences Division, Argonne National Laboratory, Argonne, IL 60439, USA bDepartment of Civil & Environmental Engineering, University of Tennessee, Knoxville, TN 37996, USA cOffice of Air Quality Planning & Standards, US Environmental Protection Agency, Research Triangle Park, NC 27711, USA dDepartment of Environmental Science and Engineering, Tsinghua University, Beijing 100084, PR China eCollege of Environmental Sciences, Peking University, Beijing 100871, PR China fInstitute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, PR China Received 13 April 2006; received in revised form 14 July 2006; accepted 19 August 2006 Abstract China is taking major steps to improve Beijing's air quality for the 2008 Olympic Games. However, concentrations of fine particulate matter and ozone in Beijing often exceed healthful levels in the summertime. Based on the US EPA's Models-3/CMAQ model simulation over the Beijing region, we estimate that about 34% of PM2.5 on average and 35­60% of ozone during high ozone episodes at the Olympic Stadium site can be attributed to sources outside Beijing. Neighboring Hebei and Shandong Provinces and the Tianjin Municipality all exert significant influence on Beijing's air quality. During sustained wind flow from the south, Hebei Province can contribute 50­70% of Beijing's PM2.5 concentrations and 20­30% of ozone. Controlling only local sources in Beijing will not be sufficient to attain the air quality goal set for the Beijing Olympics. There is an urgent need for regional air quality management studies and new emission control strategies to ensure that the air quality goals for 2008 are met. r 2006 Elsevier Ltd. All rights reserved. Keywords: Beijing; Regional air quality; Olympic Games; PM2.5; Ozone 1. Introduction the Games. China wishes to ensure a healthful and enjoyable experience for all. However, air pollution Beijing will host the 2008 Summer Games of the levels in the summertime in Beijing can be high. XXIX Olympiad from August 8­24, 2008. This is an Significant improvements in air quality in China event of paramount importance to China, and great were achieved during the late 1990s and early 2000s steps are being taken to ensure its complete success. (Hao and Wang, 2005), but with reinvigorated Of concern both within and outside China is the air economic growth and continued expansion of the quality that athletes and attendees will face during transportation system, some of those gains have been lost in the last few years. Ă The Beijing and National governments are Corresponding author. Tel.: +1 630 252 3448; introducing many new pollution control measures fax: +1 630 252 5217. E-mail address: dstreets@anl.gov (D.G. Streets). designed to reduce local emissions in Beijing, as 1352-2310/$ - see front matter r 2006 Elsevier Ltd. All rights reserved. doi:10.1016/j.atmosenv.2006.08.046 Document OutlineAir quality during the 2008 Beijing Olympic GamesIntroductionBackgroundMethodologyResultsConclusionsAcknowledgmentsReferences

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