Issues relating to the disposal of removal soil containing radioactive material

By the Fukushima Daiichi nuclear power plant accident that occurred on March 11, 2011, soil contamination by radioactive materials has occurred in various parts of Japan. However, the method of disposal of contaminated soil has not been clarified yet by the government. Recently, description of the study to confirm the safety of excavation without timbering disposal have been implemented by the Ministry of the Environment. Regardless of geological conditions are also important, but it is not considered when making the selection of disposal sites. In addition, it is necessary to evaluate the geological vulnerability to contaminants. In this paper, we discuss the scientific issues of this exercise. (author)