| Project Area | Interdisciplinary Study on Environmental Transfer of Radionuclides from the Fukushima Daiichi Nuclear Power Plant Accident |
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| Project/Area Number |
24110003
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| Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | Japan, Meteorological Research Institute |
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Principal Investigator |
Igarashi Yasuhito 気象庁気象研究所, 環境・応用気象研究部, 室長 (90343897)
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| Co-Investigator(Kenkyū-buntansha) |
大河内 博 早稲田大学, 理工学術院, 教授 (00241117)
北 和之 茨城大学, 理学部, 教授 (30221914)
石塚 正秀 香川大学, 工学部, 准教授 (50324992)
吉田 尚弘 東京工業大学, 総合理工学研究科(研究院), 教授 (60174942)
三上 正男 気象庁気象研究所, その他部局等, 研究総務官 (60354510)
里村 雄彦 京都大学, 理学(系)研究科(研究院), 教授 (20273435)
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| Co-Investigator(Renkei-kenkyūsha) |
HIROTO KAWASHIMA 秋田県立大学, システム科学技術学部, 准教授 (60381331)
TANAKA YASUMICHI 気象研究所, 環境応用気象研究部, 室長 (50435591)
SEKIYAMA TSUYOSHI 気象研究所, 環境応用気象研究部, 主任研究官 (90354498)
MAKI TAKASHI 気象研究所, 環境応用気象研究部, 室長 (50514973)
YAMADA KEITA 東京工業大学, 物質理工学院, 准教授 (70323780)
ZAIZEN YUJI 気象研究所, 予報研究部, 室長 (70354496)
ADACHI KOUJI 気象研究所, 環境応用気象研究部, 主任研究官 (90630814)
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| Research Collaborator |
NAKAI IZUMI
YAMADA YUTAKA
UTANI KEISUKE
NISHIGUCHI KOHEI
ABE YOSHINARI
MIKAMI MASAO
HATANO YUKO
OGATA HIROKO
YOSHIKAWA CHISATO
AOYAMA TOMOO
TOYODA SAKAE
HATTORI SHOHEI
MURAKAMI SHIGEKI
KAJINO MIZUO
NIIMURA NOBUO
WATANABE AKIRA
OSADA NAOYUKI
YATAGAI AKIYO
MAKI TERUYA
SATOU YUKIHIKO
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| Project Period (FY) |
2012-06-28 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥153,920,000 (Direct Cost: ¥118,400,000、Indirect Cost: ¥35,520,000)
Fiscal Year 2016: ¥12,610,000 (Direct Cost: ¥9,700,000、Indirect Cost: ¥2,910,000)
Fiscal Year 2015: ¥23,140,000 (Direct Cost: ¥17,800,000、Indirect Cost: ¥5,340,000)
Fiscal Year 2014: ¥27,690,000 (Direct Cost: ¥21,300,000、Indirect Cost: ¥6,390,000)
Fiscal Year 2013: ¥47,450,000 (Direct Cost: ¥36,500,000、Indirect Cost: ¥10,950,000)
Fiscal Year 2012: ¥43,030,000 (Direct Cost: ¥33,100,000、Indirect Cost: ¥9,930,000)
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| Keywords | 環境放射能 / 環境質定量化・予測 / 大気現象 / 環境変動 / 地球化学 / 福島第一原発事故 / 環境・生体影響 / 陸域生態圏 / 放射線 / モデル化 / 環境分析 |
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| Outline of Final Research Achievements |
Initial radioactive Cs release revealed for the first time that insoluble coarse spherical particles with a diameter of several μm existed in addition to the water-soluble submicron particles usually assumed.
In typical Satoyama area, the Cs concentration derived from resuspension escalated in the summer and was low in the winter, unlike in urban areas. We discovered for the first time that Cs carrier in summer is mostly of biological.
We developed a simplified scheme for resuspension of radioactive Cs, and we carried out flux quantification - budget calculation, including resuspension by biological particles from forest ecosystems using a regional aerosol transport model, and primary leakage continued from the accident site. As a result, similarly to other processes, it was found that resuspension contributes little to decrease and migration of Cs deposited on the earth's surface.
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