Abstract
The purpose of this study is to approach the effective risk communication about geologic disposal of high-level radioactive waste. It was attempted to search people's information gathering characteristics and risk perception structure, the influence relations between these factors. As the result, it was clarified that media use concern about risk perception, risk perception concern about anxiety, and risk perception is to each people's owns. Moreover, risk perception was composed by following 3 factors, “Personal”, “Technical”, and “External”. It was shown that “Technical” factor especially had the strong influence. Therefore, it was concluded that risk communication is necessary to disclose information much further, to supply information about technical contents at various attributes.