2016 Fiscal Year Final Research Report
Evaluation of the radiation dose exposure and chromosomal aberration on animals in radiation-contaminated areas.
| Project/Area Number |
25740026
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Environmental impact assessment
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| Research Institution | Hokkaido Pharmaceutical University School of Pharmacy (2014-2016)
Hirosaki University (2013) |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2017-03-31
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| Keywords | 野生動物 / 放射線 / 染色体 |
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| Outline of Final Research Achievements |
The objective of this study was to evaluate the effect of radioactive materials on the Japanese large field mouse, Apodemus speciosus, by analyzing age distribution, growth, exposure dose, and chromosome aberrations of mice.
The ratio of mice born before and after the F1-NPP accident was significantly low in the Fukushima population. However, our results showed that the population of mice in Fukushima has recovered. The growth of mice is not significantly different in examined areas. There were no radiation-specific chromosomal abnormalities in the mice examined. The external dose of mice in the evacuation area was lower than the air and soil dose rates. Although radiation doses in contaminated areas have been decreasing, exposure doses in mice had not decreased.
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| Free Research Field |
放射線生物学
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