Investigation of the changes in atmospheric environment associated with rapid development of Beijing and Xi'an as typical cities

北京、西安典型城市快速发展大气环境变化调查

• 批准号: 22710016
• 负责人: OKUDA Tomoaki
• 金额: $ 2.66万
• 依托单位: Keio University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22710016/
• 关键词: 環境変動; 東アジア; SO2; エアロゾル; 水溶性イオン成分; 環境規制; 北京; オリンピック; 環境質定量化・予測; 環境分析; 大気汚染防止・浄化; 地球化学; 有害化学物質; 大気微小粒子; 環境変動; 東アジア; SO2; エアロゾル; 水溶性イオン成分; 環境規制; 北京; オリンピック; 環境質定量化・予測; 環境分析; 大気汚染防止・浄化; 地球化学; 有害化学物質; 大気微小粒子

We investigated the changes in atmospheric environment associated with rapid development in Chinese mega-cities. The pollution control measures associated with the Olympic Games 2008 worked well in reducing sulfate by 40%. The concentration of sulfur dioxide was decreased by 30% from 2005 to 2009 in Beijing. Atmospheric sulfate was decreased by 20% in winter while it was decreased by 50% in summer at the same period. We estimated that this was due to the changes in several meteorological conditions as well as concentration of oxidants.

我们调查了与中国大型城市快速发展有关的大气环境的变化。与2008年奥运会有关的污染控制措施在将硫酸盐降低40％方面效果很好。从2005年到2009年，北京的二氧化硫浓度降低了30％。冬季，大气中的硫酸盐减少了20％，同一夏季下降了50％。我们估计，这是由于几种气象条件的变化以及氧化剂的浓度。