Trial of the health risk assessment of indirect exposure in Hiroshima atomic bomb by the moving route analysis

Abstract

This study aims to clarify to assess the health risk of indirect exposure in Hiroshima atomic bomb.So we need to understand a moving route and distance of the indirect casualties.We analyzed these by GIS.The results are as follows.1)We can see many people moved from suburb to city center in Hiroshima.City center in Hiroshima is near hypocenter and radiation risk is high.It is one of the reasons that there was no information about the radiation risk.2)To understand accurate moving route is difficult.It is because the reply accuracy to a questionnaire is various at each one.