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Report No.

Simulation study on $$^{3}$$H behavior in the Fukushima coastal region; Comparison of influences of discharges from the Fukushima Daiichi and rivers

Sakuma, Kazuyuki   ; Yamada, Susumu  ; Machida, Masahiko  ; Kurikami, Hiroshi  ; Misono, Toshiharu   ; Nakanishi, Takahiro   ; Iijima, Kazuki  

This article reports the $$^{3}$$H behavior in the Fukushima coastal region, considering the effects of FDNPP discharge and riverine $$^{3}$$H inputs. The simulation results showed that discharges from the port of Fukushima Daiichi dominantly affected the $$^{3}$$H concentrations in monitoring points within approximately 1 km. Moreover, the results indicate that the effect of riverine $$^{3}$$H discharge was limited around the river mouth under base flow conditions. However, its impact on the Fukushima coastal regions under storm flow conditions was found, and the $$^{3}$$H concentrations in seawater in the Fukushima coastal region were formed around 0.1 Bq/L (mean $$^{3}$$H concentrations in seawater in the Fukushima coastal region) in the near shore.



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Category:Environmental Sciences



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