| 株洲市工业区大气中SO2转化速率的研究 |
| 摘要点击 1379 全文点击 1896 投稿时间：1997-07-16 |
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| 中文关键词 SO2 TSP 细粒子硫酸盐 转化速率 株洲市 工业区 |
| 英文关键词 sulphur dioxide sulphate in fine particle oxidation rate Zhuzhou industial region |
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| 中文摘要 |
| 在湖南省株洲市工业区的下风向布点,同时测定大气中SO2的浓度、TSP和<0.25μm细粒子中SO42-的浓度。结果表明,大气中SO2浓度随着离污染源距离的增加迅速下降,和SO2相比,颗粒物中SO42-浓度随距离的增加而降低的程度要慢得多。同步测定的SO2浓度和细粒子SO42-浓度有显着的相关关系。根据风向、风速和新产生的细粒子中的SO42-浓度及大气中SO2的浓度计算了株洲教育学院处SO2的转化速率,春季湿度大,SO2转化速率也大,为4.8%/h,秋季湿度小,SO2的转化速率变低,为1.5%/h.春季中路铺SO2转化速率为3.1%/h. |
| 英文摘要 |
| 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%. |
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