河北工业面源更新及其对奥运会期间京津冀区域空气质量模拟的影响

基于北京奥运会实时空气质量预报所用排放清单基础上,利用卫星影像资料提高京津冀大气污染排放清单空间分辨率,并考虑加强污染控制措施对排放源的影响,生成新的污染排放清单。更新排放清单的基础后,利用嵌套网格空气质量预报模式系统(NAQPMS)对奥运会期间北京及周边地区进行大气化学模拟,以评估奥运会期间北京及周边地区污染排放对空气质量状况的影响。模式结果表明,更新后的排放清单能够较好体现奥运会期间的污染排放状况。另外,情景控制试验结果表明,脱硫脱硝等一系列减排措施以及紧急污染控制措施,是奥运会期间北京城区空气质量良好的重要原因。

Update of Industrial Pollution Source in Hebei Province and Its Effects on Regional Air Quality Modelling during the 2008 Beijing Olympic Games

A new air pollution emission inventory of Hebei Province during the 2008 Beijing Olympic Games is generated on the basis of previous Beijing real-time forecast emission inventory from Wang et al.(2006), considering updated emission data and pollution control measures. Then with the help of Nested Air Quality Prediction Model System(NAQPMS), regional air quality simulation is processed to evaluate the updated pollution intensity and its effect. After comprehensive comparison between model outputs and measurements such as ground observation and satellite data from space, it is confirmed that the update efforts are resultful to some extent, especially on some primary species such as SO2. And a series of pollution control policies are believed to make a crucial contribution, shown by scenario analysis, to the air quality improvement during the Beijing Olympics.