1-24

Fig.1-24 137Cs concentrations in each mineral and separated mineral obtained from the fine sand fraction at the riverbed and reservoir

The fine sand was separated into (a) felsic minerals, (b) micas, and (c) mafic minerals. Although previous studies have indicated that 137Cs is poorly sorbed onto mafic and felsic minerals, 137Cs was sorbed these minerals.

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