| Project/Area Number |
22510019
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | Tokyo University of Science |
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Principal Investigator |
MIURA Kazuhiko 東京理科大学, 理学部第一部, 准教授 (00138968)
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| Co-Investigator(Kenkyū-buntansha) |
NAGANO Katsuhiro 東京理科大学, 理工学部, 講師 (40408703)
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| Co-Investigator(Renkei-kenkyūsha) |
KOBAYASHI Hiroshi 山梨大学, 大学院・医学工学総合研究部, 准教授 (20313786)
YASUDA Hiroshi 独立行政法人放射線医学総合研究所, 放射線防護研究センター, 上席研究員 (50250121)
UEDA Sayako 東京理科大学, 理学部, ポストドクトラル研究員 (00612706)
YAJIMA Kazuaki 独立行政法人放射線医学総合研究所, 福島復興支援本部環境動態・影響プロジェクト, 主任研究員 (20392243)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | イオン / エアロゾル / ラドン / 宇宙線 / 核生成 / 粒子生成 / 富士山 / イオン誘発核生成 / 小イオン |
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| Research Abstract |
We have observed small ions, aerosol size distributions, radon concentrations, and intensity of cosmic rays in the urban, maritime, and mountain atmosphere. There is a negative relation between ion concentration and coagulation sink at all measured places. This suggests that concentration of small ions decreases by ion-aerosol attachment. There is a positive relation between ion concentration and wind speed over the ocean. This suggests that small ions are generated by bubble bursts of seawater.
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