The difference of radiation effects by the pathway analysis of the Hiroshima atomic bomb indirect exposed survivors

Abstract

The situation of radiation exposure and effects of the health are different by the length and location of pathway. So we analyzed the pathway of the Hiroshima atomic bomb indirect exposed survivors using GIS(Sato et al,2014). In this study, we aimed to clarify the difference of radiation effects of the Hiroshima atomic bomb indirect exposed survivors by their pathway. The results were surmised as follows. 1)Analysis of the relationship between the age at exposure and the total distance of pathway, we could not see the difference by the sex and age. 2)Analysis of the relationship between the age at exposure and the shortest distance from the hypocenter, we could not see the difference by the sex and age. 3)Increase the risk of malignant neoplasms, as the total distance of pathway is long and the shortest distance from the hypocenter is close. In particular, when we focused on the shortest distance, the risk of malignant neoplasms could see higher within 500m from the hypocenter.