RADIOISOTOPES
Online ISSN : 1884-4111
Print ISSN : 0033-8303
ISSN-L : 0033-8303
Letters
Radiocaesium Distribution in Rice Plants Grown in the Contaminated Soil in Fukushima Prefecture in 2011
Keitaro TANOINatsuko I. KOBAYASHIYuji ONOShigeto FUJIMURATomoko M. NAKANISHIKeisuke NEMOTO
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JOURNALS OPEN ACCESS

2013 Volume 62 Issue 1 Pages 25-29

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Abstract

To clarify the mechanism of radiocaesium contamination of rice, we performed an imaging analysis to find the radiocaesium distribution pattern throughout the rice plant. The result demonstrated that the rice plant which was grown on the particular paddy field, where a highly contaminated brown rice was produced in 2011, contained larger amount of radiocaesium in the newer leaves than in the older leaves. In contrast, rice plant grown in an another area, where the contamination level in grain was low, contained larger amount of radiocaesium in the older leaves. It was suggested that the uptake of radiocaesium was promoted and/or radiocaesium in plant was redistributed to the newer organs during summer season when the rice was heading.

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© 2013 by Japan Radioisotope Association
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