Rice Uptake and Leaching of Tc-99 Deposited onto Paddy Soils at Two Different Times-before and after

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  Rice is staple food in many Asian countries, where paddy rice fields occupy a large amount of national land.Because of its very long half-life and relatively high fission yield, technetium-99 (Tc-99) is regarded as one of the most important radionuclides in an environmental impact assessment for nuclear fuel cycles.
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