MEASURES AGAINST RADIOACTIVE CONTAMINATION DUE TO FUKUSHIMA FIRST NUCLEAR POWER PLANT ACCIDENTS PART II: MEASUREMENT OF SPACE RADIATION DOSE RATES AND EXAMINATION OF CONTAMINATION IN FOOD

摘要

The space radiation dose rates at several points in Miyagi prefecture and their time dependencies were measured. Radiation exposure was mainly caused by ~(131)I at the earlier stage of Fukushima first nuclear power accidents and then by ~(134)Cs and ~(137)Cs. We inspected radioactive contamination for food produced in Miyagi prefecture and Fukushima city. As the result, almost all food were safe.