Comparative evaluation of environmental effects between ionizing radiation and chemicals using an experimental ecosystem model
| Project/Area Number |
19510063
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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 |
Risk sciences of radiation/Chemicals
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| Research Institution | National Institute of Radiological Sciences |
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Principal Investigator |
FUMA Shoichi National Institute of Radiological Sciences, 放射線防護研究センター, チームリーダー (40260236)
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2008: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2007: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 環境防護 / 放射線 / 化学物質 / モデル実験生態系 / 間接影響 / 生物間相互作用 / 環境影響 / 培養時期 / 相互作用 |
|---|
| Research Abstract |
Acute γ-irradiation experiment was carried out in an experimental ecosystem model consisting of eight taxa of aquatic microorganisms. Various indirect effects due to interspecies interactions, some of which had not been known in aquatic microbial community, were detected. It was also demonstrated that radiosensitivity was different with cultural stage. These results will contribute to improvement of current frameworks for radiation protection of the environments. Effect doses of γ-rays and various chemicals were evaluated for the entire system. This result will contribute to a better understanding of environmental risks of ionizing radiation compared with chemicals.
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Report
(4 results)
Research Products
(9 results)
