エアロゾル研究
Online ISSN : 1881-543X
Print ISSN : 0912-2834
ISSN-L : 0912-2834
研究論文
紫外光反応により発生した硫酸二次粒子の成長
藤本 敏行山中 真也空閑 良壽
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ジャーナル フリー

2012 年 27 巻 1 号 p. 81-89

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Generation of sulfuric acid from air containing SO2 and the growth of sulfuric acid aerosol are an important process in the formation of atmospheric aerosol. In this study, laboratory experiments on photo-oxidation of SO2 and generation of secondary sulfuric acid aerosol were carried out. Numerical model on the growth of binary component aerosol of water and sulfuric acid was also developed. The model calculation of generation and growth of secondary sulfuric aerosol was conducted by coupling the aerosol growth model with both overall reaction model of generation of sulfuric acid from SO2 and parameterized homogeneous binary nucleation model. As expected, the present model calculation underestimated the particle growth because the condensation and evaporation of water vapor were not included. However, the model calculations successfully explained the decrease in number concentration and increase in particle size at longer residence time qualitatively.

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© 2012 日本エアロゾル学会
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