エアロゾル研究
Online ISSN : 1881-543X
Print ISSN : 0912-2834
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東京西部を対象としたPM2.5中SO42-に対する発生源感度解析
櫻井 達也佐竹 晋輔松田 和秀
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キーワード: PM2.5, Sulfate, SO2, AQM, Emission Sensitivity
ジャーナル フリー

2015 年 30 巻 4 号 p. 275-278

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Abstract In order to evaluate the effectiveness of the PM2.5 emisson control measures for domestic sources, emission sensitivity analysis for seasonal trends and the high concentrations of SO42- in PM2.5, observed in 2010 at Meisei University located in western Tokyo, was implemented based on WRF/CMAQ simulation. The sensitivity was estimated for the emission from volcano, ship, domestic land-based and foreign sources. The sensitivity of foreign emission sources was highest (50.7%) on annual average at the observation site where the local emission strength was relatively small. Especially, it was suggested that the foreign emission sources had a larger contribution to the variation of SO42- concentration during the period of January to April and November to December of 2010. On the other hand, the contribution of foreign emission sources to the high concentration of SO42- decreased during the summer season because of the southern wind from the Pacific High. Since the contribution of both domestic land-based and the ship emission sources was estimated as 41.5% in August 2010, it seemed that the countermeasures implemented for the domestic emissions in summer season was effective in achieving the environmental standard in western Tokyo.

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© 2015 日本エアロゾル学会
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