| Project/Area Number |
26460754
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Epidemiology and preventive medicine
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| Research Institution | Prefectural University of Hiroshima |
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Principal Investigator |
Tonda Tetsuji 県立広島大学, 経営情報学部, 准教授 (60346533)
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| Co-Investigator(Kenkyū-buntansha) |
佐藤 健一 広島大学, 原爆放射線医科学研究所, 准教授 (30284219)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 原爆被爆者 / 間接被曝 / リスク評価 / 空間統計 / がん死亡危険度 / ２次的放射線被曝 / 空間変化モデル / 時間変化モデル / 2次的放射線被曝 |
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| Outline of Final Research Achievements |
While there is a considerable number of studies on the relationship between the risk of disease or death and direct exposure from the atomic bomb in Hiroshima, the risk for indirect exposure caused by residual radioactivity has not yet been fully evaluated. One of the reasons is that risk assessments have utilized estimated radiation doses, but that it is difficult to estimate indirect exposure. To evaluate risks for other causes, including indirect radiation
exposure, as well as direct exposure, a statistical method is described here that evaluates risk with respect to individual location at the time of atomic bomb exposure instead of radiation dose. We modeled time varying effect of radiation exposure on health status and made an animation of risk map. Based on the animated risk map, we discussed possibilities of influence of indirect exposure on health status among atomic bomb survivors.
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