抄録
Public opinion is one of the most important factors in nuclear energy policy. However, it is difficult to understand concerns and needs that determine the public's attitude toward nuclear power plants (NPPs) through questionnaire survey. In this study, as the first step, the most important concern was extracted from the questions by the participants in the briefing sessions for residents by text mining. As the second step, changes in attitudes towards NPPs analyzed by questionnaire survey when the concern was resolved. The most important concern was "In case of an accident, it is possible to evacuate". Regarding restarting NPPs, proponents were more than opponents. Regarding constructing new NPPs, the number of opponents increased by 1.6 times and the number of proponents was reversed. Regarding constructing NPPs that do not require evacuation, which is a solution to the concern, the number of opponents decreased and the number of proponents increased, resulting in a balance of proponents and opponents. Respondents might feel uneasy about the novelty and unknownness of the question, which simply said, "Construct new NPPs." The government should set a clear purpose based on the public’s concern, such as promoting the development of NPPs that do not require evacuation.