Following the Basic Policy announced by the Government of Japan on 14 April 2021, based on the Terms of Reference (TOR) on a comprehensive framework fer reviewing safety related- aspects of handling ALPS treated water at TEPCO’s FDNS, which was signed on 8 July 2021, a series of review was conducted by the IAEA. On July 4th, IAEA Director General Rafael Mariano Grossi handed over the Comprehensive Report to Prime Minister Kishida and the report was published accordingly.
1. Executive Summary of the IAEA Comprehensive Report states the following conclusions;
ⅰ Based on its comprehensive assessments, the IAEA has concluded that the approach to discharge ALPS treated water into the sea, and associated activities by TEPCO, NRA and the government of Japan, are consistent with relevant international safety standards.
ⅱ The IAEA has concluded, based on its comprehensive assessment, that the discharge of the ALPS treated water to the sea, as currently planned by the TEPCO, will have a negligible radiological impact to people and the environment.
2. In the summary, the IAEA also stated that IAEA is committed to engage with Japan on the release of ALPS-treated water before, during and after release and that further reviews and monitoring provide additional transparency and reassurance to the international community.
3. The Government of Japan will continue to provide necessary information and remains committed to making efforts to promote better understanding in the international community regarding the discharge of ALPS treated water into the sea.
(Reference) ALPS treated water is water which is processed by devices such as ALPS (Advanced Liquid Processing System) to ensure that the radioactive materials other than tritium surely meet the regulatory standards for safety. In addition, it is planned that ALPS treated water will then be sufficiently diluted before the discharges so that the concentrations of the radioactive materials including tritium will be far below the regulatory standards for safety.