【摘要】 分析了北京城区春季污染物 (SO2 、NOX)垂直分布与相应的气象条件之间的关系 ,结果表明 ,不同高度的 SO2 浓度差异不显著 ,而不同高度的 NOX 浓度有明显的差异 ,知春路低层浓度高于中、高层 ,潘家园则是低层低于中、高层。一日中 ,特别是当无大的天气系统影响 ,地面呈典型的山谷风日变化时不同高度的 SO2 和 NOX浓度均呈明显的峰谷变化。工作日污染物浓度比休息日浓度高 50 %。更多还原

【Abstract】 This paper analyses the relationship between perpendicular distribution of pollutants and weather condition The results show that the density of SO 2 don’t vary with height The density of NO X has obvious variety with different height For example, the density of low level is higher than middle level or high level in zhichunlu But the density of NO X in panjiayuan is opposite When it has no synoptic system to control and it has typical mountain-valley wind in a day, the density of SO 2 or NO X in different level are showed a change with peak and valley The density in working day is higher 50 percentage than the density in Saturday or Sunday更多还原