Air quality during the 2008 Beijing Olympic Games
Air quality during the 2008 Beijing Olympic Games
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DOI：
10.1016/j.atmosenv.2006.08.046
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发表时间：
2007-01-01
影响因子：
5
通讯作者：
Yu, Carolyne
中科院分区：
文献类型：
--
作者：
Streets, David G.;Fu, Joshua S.;Yu, Carolyne
为了迎接 2008 年奥运会，中国正在采取重大措施改善北京的空气质量。然而，夏季北京的细颗粒物和臭氧浓度经常超过健康水平。根据美国 EPA 对北京地区的 Models-3/CMAQ 模型模拟，我们估计奥林匹克体育场场地内平均约 34% 的 PM2.5 和 35-60% 的臭氧可归因于北京以外的污染源。邻近的河北省、山东省和天津市对北京的空气质量影响较大。南风持续吹来时，河北省可贡献北京PM2.5浓度的50-70%和臭氧的20-30%。仅控制北京本地源头不足以实现北京奥运会设定的空气质量目标。迫切需要进行区域空气质量管理研究和新的排放控制策略，以确保实现 2008 年空气质量目标。 (c) 2006 Elsevier Ltd. 保留所有权利。
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 35-60% 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 50-70% of Beijing's PM2.5 concentrations and 20-30% 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. (c) 2006 Elsevier Ltd. All rights reserved.