| Project/Area Number |
24590775
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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 |
Hygiene
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| Research Institution | National Institute of Radiological Sciences |
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Principal Investigator |
ISHII Nobuyoshi 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, 主任研究員 (50392212)
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| Co-Investigator(Kenkyū-buntansha) |
TAGAMI Keiko 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, 主任研究員 (10236375)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 浄水発生土 / 放射性セシウム / 園芸 / 移行係数 |
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| Outline of Final Research Achievements |
Sludge from drinking water treatment plants has been effectively reused as materials for construction, playground soils, and potting mixes. After the 2011 accident at the Fukushima Daiichi Nuclear Power Plant, sludge in the Tohoku and Kanto regions has become contaminated with radiocesium (Cs-134 and Cs-137). Consequently, the storage amount of contaminated sludge in drinking water plants had temporarily increased. If the sludge is reused as a material for potting mixes of home gardens, vegetables grown in the mixes may take up the radiocesium. In the present study, leaf vegetables were grown in the potting mix containing contaminated sludge to obtain the soil-to-plant transfer factor of radiocesium. In addition, we studied suppression techniques for the transfer of radiocesium to leaf vegetables. These results provide initial data on the possibility of the reuse of radiocesium- contaminated-sludge.
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