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Impact of emission control on regional air quality: An observational study of air pollutants before, during and after the beijing olympic games

引用

Journal of Environmental Sciences 2014年第1期26卷 175-180页

作者： Shulan Wang Jian Gao Yuechong Zhang Jingqiao Zhang Fahe Cha Tao Wang Chun Ren Wenxing Wang State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental Sciences Department of Civil and Structrual Engineering The Hong Kong Polytechnic University

An observational study on trace gases and PM2.5 was conducted at three sites in and around beijing, during the olympic season from 2007 to 2009. air quality improved significantly during the olympic games due to the special emission control measures. However, concentrations of the primary pollutants and PM were found to have risen significantly after the games. Although the major O3 precursors （NOx and VOCs） were well controlled during the olympic season, O3 was still found to be the highest in 2008, based on the data of ground-based observation. All this information suggests that while control of regional emissions for the beijing olympic games did improved the air quality in beijing, more efforts will be needed for the continuous improvement of regional air quality, especially for significant reductions of O3 and fine particulate pollution, and not only in beijing, but also in the B eijing-Tianjin-Hebei region.

关键词： beijing olympic games primary pollutants ozone fine particle air

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