| Budget Amount *help |
¥13,910,000 (Direct Cost: ¥10,700,000、Indirect Cost: ¥3,210,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2016: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2015: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
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| Outline of Final Research Achievements |
The source of radio cesium (Ce) that flow out through river system in Fukushima is not the forest but the river bed where there is water flow only when flood event but there is no water normally. Radio cesium deposited on the river bed and fixed on sediment on March 2011. Then the particles of sediment is moving and flow out to reservoirs. Therefore, since the area of the river bed is a small part of the river basin and considerable part of the radio cesium there has been flowed out, the discharge of Ce would attenuate clearly within several or ten years.
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