Examination of biosphere assessment methodology in view of surface and near-surface environment

Itazu, Toru; Kato, Tomoko ; Inagaki, Manabu; Suzuki, Yuji*

The project of high-level radioactive waste disposal is in the stage of site selection in Japan, and the site-specific performance assessment using the methodology of site-generic study has been developed after the publication of the second progress report (H12). Japan Atomic Energy Agency (JAEA) has started the biosphere assessment using the behavior of radionuclides, which depends on the site-specific geological condition. In this presentation, we report the examination of biosphere assessment methodology in view of surface and near-surface environment.