13 April 2021
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The Japanese government today announced its formal decision that the treated water stored at the Fukushima Daiichi site will be discharged into the sea. Tokyo Electric Power Company (Tepco) is expected to start discharging the mildly-radioactive water in 2023 in line with international standards and regulations.
Tanks of treated water at the Fukushima Daiichi site (Image: Tepco)
At the Fukushima Daiichi site, contaminated water is treated by the Advanced Liquid Processing System (ALPS), which removes most of the radioactive contamination, with the exception of tritium. This treated water is currently stored in tanks on-site. The total tank storage capacity amounts to about 1.37 million cubic metres and all the tanks are expected to be full around the summer of 2022.