Investor Presentaiton

Mass balance of FNPP1 derived radiocaesium Atmospheric input 15.2-20.4 PBq 700 PBq in the three core 140 PBq in stagnant water (Nishihara et al.,, 2011) Ocean/Direct release 3.5 ± 0.7 PBq (Tsumune et al., 2012) Atmospheric deposition - Total 11.7 14.8 PBq (Aoyama et al., JO, 2016) Land/3.4-6.2 PBq (Aoyama et al., JO, 2016) North Pacific Ocean 134 CS 15.2-18.3 PBq (Aoyama et al., JO, 2016): Total 15.3 ± 2.6(Inomata et al., 2016) 16.1 ± 1.4 (Tsubono et al., 2016) (STMW 2.2-4.9 PBq, CMW 7.5-9.3 PBq by the models) SOJ 0.27±0.02 PBq 6.4% STMW Surface CMW 4.2 ± 1.1 7.9 ± 1.4 2.5 ± 0.9 (42%) PBq PBq Re-NPO PBq (Kaeriyama et Inomata et al., JRNC, 2018b, ENVIRA2019 0.11 ±0.01PBq 2.7% al. 2016)

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