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Report No.

Overview of the 3rd phase crossover research on migration of radionuclides in biosphere

Uchida, Shigeo*; Amano, Hikaru; Takahashi, Tomoyuki*; Chiba, Masaru*; Hisamatsu, Shunichi*; Enomoto, Shuichi*; Matsumoto, Shiro*

In the 3rd Stage Crossover Research (1998 to 2003), a project on Development of a dynamic transfer model of radionuclides in the soil ecosphere,is currently being promoted. The following five researches are carried out in this project. 1) Research into the forms of existence of nuclides and their change in the soil (NIRS and JAERI), 2) Research into the transition behavior of radionuclides in plants (IES, RIKEN and NIRS), 3) Research into the relation to the microorganism and on environmental remediation (RIKEN, JAERI and NIRS), 4) Research on the migration of radionuclides from atmosphere to soil and plant (MRI and JAERI), and 5) Database construction on transfer parameters (JAERI, NIRS and MRI). JAERI, MRI and NIRS are working on the development of a dynamic transfer model such as MOGRA for radionuclides on the basis of a gained knowledge about the environmental behavior through cooperation with universities, etc. This model is also capable of the predicting the behavior of materials that are harmful to the environment such as hazardous heavy metals discharged in the soil ecosphere. In this presentation, we will overview the ourcome of the 3rd stage research.



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