Relationship Between SO2 Air Pollution andMeteorological Conditions in Beijing
北京冬季二氧化硫污染和气象条件的关系

Based on the data of the gradient observation of SO2 concentration in winter in Beijing from January 25, 2000 to February 3, 2000, and the meteorological data observed on the meteorological tower in Beijing at the same time, SO2 concentration variations and the vertical variations during the observation were analyzed. The relationship of SO2 concentration variation and meteorological conditions were discussed. The sources of SO2 have been investigated. The results indicate that there is a close relationship between the variation of SO2 concentration and vertical conveyance and wind speed, wind direction and atmospheric stability. The smaller the wind speed and the atmosphere stability are, the more serious the air pollution of SO2 is in surface layer. The higher SO2 concentration were from SSW, SW, WSW and W direction.