Survey on the Existence of Deep Subsurface Bacteria

Yamamoto, H.*; Matsushima, E.*; Yotsumoto, T.*

JNC TJ7400 2005-059, 279 Pages, 1991/08

Recent studies have revealed the existence of microorganisms living under extreme environmental conditions.Some reports suggest that microorganisms may affect the integrity of underground artificial structuers of stratum-level radioactive waste storage sites.This study consisted of a series of experiments and a review of published data relating to deep subsurface bacteria and attempted to provide a foundation for future evaluations of geological environment affects on the stratum disposition of radioactive waste.