[3C01-09] Environmental Radiation Monitoring

11:00 AM - 11:15 AM JST(2:00 AM - 2:15 AM UTC)

[3C07] The Progress and Future Prospects of Environmental Radiological Monitoring by Japan Atomic Energy Agency(7) Aerosol monitoring and assessment of internal dose rates in the difficult-to-return zone

*Tomohisa Abe¹, Kazuya Yoshimura², Hironori Funaki¹, Yukihisa Sanada¹, Shinya Ochiai², Seiya Nagao² (1. JAEA, 2. Kanazawa Univ.)

Keywords:

Fukushima Daiichi Nuclear Power Plant accident,radioactive cesium,aerosol monitoring,resuspension factor,internal dose rate

The results of long-term monitoring in the difficult-to-return zone, which has been conducted continuously since the accident at the Fukushima Dai-ichi Nuclear Power Plant, were analyzed in order to identify trends in the variation of atmospheric radiocesium concentration and resuspension factor. In addition, an analytical case study is presented in which the results of atmospheric radiocesium concentrations are used to evaluate the activity median aerodynamic diameter and internal dose rate.