Investor Presentaiton
137Cs (134Cs )mass balance at the beginning
15-20 PBq to the atmosphere
Aoyama et I., 2016
atmosph
3-6 PBq to the land
Aoyama et al., 2016
ā
12 15 PBq to the ocean
Aoyama et al., 2016
Total in the Ocean: 15-18 PBq
Aoyama et al., 2016, Tsubono et al.,
2016, Inomata et al., 2016
3.6 0.7 PBq to the ocean
(Tsumune et al., 2013)
140 PBq in stagnant water
700 PBq was in the three core
(Nishihara et al.,, 2011)
230 PBq recovered
TEPCO unpublished data
Issues we should know during 7 years after the
accident
1) Relatively higher deposition, due to flux from forest?
2) Continuous release from the site and other sources, eg.
river water and resuspension.
3) Transport from STMW in the North pacific to Sea of
Japan
4) Transport in the surface layer and into ocean interior
5) Results of de-contamination workView entire presentation