【摘要】 用大量观测事实、统计相关分析表明 ,气象条件包括气压形势场、相对湿度 (高空露点温度 )、气温、风速和大气的稳定性等变化 ,对空气污染物的PM1 0 、SO2 和NO2 浓度扩散程度的影响是明显的有规律的。在不同季节、不同时期 ,地面和高空气象因子作用是不同的。但另一方面 ,由于污染源因季节冷暖程度不同 ,排放量很难掌握 ,因此 ,气象条件对污染的影响有不确定的一面 ,使问题变得复杂化。更多还原

【Abstract】 Large amount of observed facts and analyses show that meteorological conditions including pressure distribution, relative humidity (upper air dew point temperature), temperature, wind speed and the variation of atmospheric stability can affect obviouly the consistency and diffusion of air pollutants, such as PM 10 , SO 2 and NO 2, with some regularities. In different seasons and different time periods, the surface and upper air meteorological factors play different roles. On the other hand, because of the variation of pollution sources with seasons and the emitted pollutant amount cannot be obtained exactly.更多还原