[1F06-08] Medical and Biological Application 2

[1F08] Risk of Gradual Exposure Likely Received in Severe Nuclear Power Plant Accident

*Masayoshi Kawai¹ (1. KEK)

Keywords:Risk, Radiation Exposure, Nuclear Power Plant Accident, DNA Damage, DNA Repare, Natural Cancer, 100 mSv/year

In human being, there is functios against oncogenesis such as DNA repairing mechanism. Risk of gradual exposure likely received in severe nuclear power plant accident has been evaluated to provide a guide to think about how to act, by considering that the process of cancer progression after the damage of DNA due to active oxygen is the same between a natural and radiation induced cancers. The evaluated risk of radiation exposure by 100 msV/y in a lifetime is 2.7 x10^-6/yearand one order magnitude lower than a recent traffic accident.