Analysis for Vertical Profile of Atmospheric SO2 During Air Seriously Polluted Days in Beijing
北京地区一次大气环境持续严重污染过程中SO2的垂直分布分析

The concentration of SO2 was observed continuously from Sep 27,2004 to Oct 12,2004 in Beijing.We used the trace level pulsed fluorescence SO2 analyzers to measure this pollutant in air.The four SO2 analyzers were placed in four different levels(8m,47m,120m and 280m) of the 325m tall meteorologic observation tower.According to the meteorology data and the concentration of SO2,PM10,PM2.5 that observed from the tower,the vertical profile and the consistence trend of atmospheric SO2 were analyzed,and also found out the dependence relation between the consistence trend and the meteorological factors such as mix level altitude,air pressure,wind speed,and wind direction.Some air highly polluted days which caused by the meteorology was observed.