Study on Oxidation Rate of SO2 in Zhuzhou Industrial Region,Hunan Province
株洲市工业区大气中SO2转化速率的研究

The sampling sites located downwind of Zhuzhou industrial region are Zhuzhou Education Institute,Zhonglupu and Heng Mountain.Gaseous SO2,SO42- in TSP and fine particle were measured at same time.The results point out that concentration of SO2 decreased rapidly with increasing distance of sampling site from emission source,but SO42- concentration in TSP and fine particle decreased much slowly than SO2 soncentration. A marked correlativity between the concentration of SO2 and SO42- measured simultaneously was observed.Based on wind velocity,the concentrations of SO2 and new formed SO42- in fine particle the oxidation rate of SO2 in Zhuzhou Education Institute was calculated.In spring,high oxidation rate of SO2 to be 4.8%/h was examined with RH>90%.In fall,oxidation rate of SO2 decreased to be 1.5%/h with about RH 50%.