Safety review by the International Atomic Energy Agency (IAEA)
- In light of request from Government of Japan following the Basic Policy announced in April 2021, the IAEA conducted technical reviews of the safety of all related aspects of the handling ALPS treated water to assess consistency with relevant international safety standards. The Task Force* included experts from the IAEA Secretariat and internationally recognized independent experts.
- A comprehensive report that summarized the results of the review was released in July 2023.
- The IAEA is committed to being involved before, during, and after the discharge of ALPS treated water into the sea. *International experts from Argentina, Australia, Canada, China, France, the Marshall Islands, the Republic of Korea, the Russian Federation, the United Kingdom, the United States and Viet Nam.
About IAEA (International Atomic Energy Agency)
- The IAEA was established as a United Nations related organization in 1957 and is the international organization promoting for cooperation on nuclear power through out the world.
- IAEA sends reviewers to countries all over the world to confirm that nuclear power is being used for peaceful purposes. Furthermore, IAEA establishs international standards for the safe use of nuclear power, and provides their expert knowledge to nations looking to engage in nuclear power generation.
Director General
Rafael Mariano Grossi
Main gist of the comprehensive report
- The approach to the discharge of ALPS treated water into the sea, and the associated activities by TEPCO, NRA, and the Government of Japan, are consistent with relevant international safety standards.
- The discharge of ALPS treated water, as currently planned by TEPCO, will have a negligible radiological impact on people and the environment.
IAEA comprehensive report
on the safety review
of the ALPS treated water
Main items assessed during the IAEA review
❶ Assessment of Protection and Safety Aspects of Handling of ALPS Treated Water
Safety aspects such as the charactaristics of ALPS treated water and the safety of the discharge process have been assessed.
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Site visit by the IAEA
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Review meeting
❷ Regulatory Activities and Processes
Nuclear Regulation Authority's (NRA) handling of this issue as the independent regulatory body responsible for nuclear safety has been assessed.
❸ Independent Sampling, Data Corroboration and Analysis
In order to corroborate the analysis results, the samples of ALPS treated water taken in the presence of the IAEA were analyzed by the IAEA in its laboratories and in third-party laboratories interlaboratory comparison was conducted.
[ALPS treated water 3rd] Release of the report on the interlaboratory comparison result
[Sea Area Monitoring 2nd] Release of the report on the interlaboratory comparison result
[ALPS treated water 2nd] Release of the report on the interlaboratory comparison result
[Sea Area Monitoring 1st] Release of the report on the interlaboratory comparison result
[ALPS treated water 1st] Release of the report on the interlaboratory comparison result
Participating Laboratories 【ALPS treated water】
- ■ IAEA
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・IAEA Marine Environment Laboratories, Radiometrics Laboratory (RML), Monaco
・Terrestrial Environmental Radiochemistry Laboratory (TERC), Seibersdorf, Austria
・Isotope Hydrology Laboratory (IHL), Vienna, Austria
- ■ The Third-Party Laboratories
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・Spiez Laboratory (LS – Labor Spiez), Switzerland
・Institut de Radioprotection et de Sûreté Nucléaire (IRSN), France
・Los Alamos National Laboratory (LANL), United States of America
・Korea Institute of Nuclear Safety (KINS), Republic of Korea
・China Institute for Radiation Protection (CIRP), China
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Sampling of ALPS treated water
Participating Laboratories 【Sea Area Monitoring】
- ■ IAEA
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・IAEA Marine Environment Laboratories, Radiometrics Laboratory (RML), Monaco
- ■ The Third-Party Laboratories
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・Korea Institute of Nuclear Safety (KINS), Republic of Korea
・Health Canada, Canada
・Third Institute of Oceanography, China
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Sampling and pretreatment process
Timeline
2025
- March
-
・Release of the report on the third safety review mission (after the discharge)
・【ALPS treated water 3rd】 Release of the report on the interlaboratory comparison result
・【Sea Area Monitoring 2nd】 Release of the report on the interlaboratory comparison result
2024
- December
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・Third safety review mission (after the discharge)
- July
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・Release of the report on the second safety review mission (after the discharge)
- April
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・Second safety review mission (after the discharge)
- January
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・Release of the report on the first safety review mission (after the discharge)
・【ALPS treated water 2nd】 Release of the report on the interlaboratory comparison result
・【Sea Area Monitoring 1st】 Release of the report on the interlaboratory comparison result
2023
- October
-
・First safety review mission (after the discharge)
- July
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・Release of the IAEA comprehensive report
- May
-
・Comprehensive review mission on the discharge of ALPS treated water
・【ALPS treated water 1st】 Release of the report on the interlaboratory comparison result
・Release of the report on the second regulatory review mission
- April
-
・Release of the report on the second safety review mission
- January
-
・Second regulatory review mission
2022
- December
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・Release of the Report on IAEA’s Independent Sampling, Data Corroboration, and Analysis Activities
- November
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・Second safety review mission
- June
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・Release of the report on the first regulatory review mission
- April
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・Release of the report on the first safety review mission
- March
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・First regulatory review mission
- February
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・First safety review mission
2021
- July
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・IAEA and the Government of Japan sign terms of reference governing the IAEA review
- April
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・The Government of Japan announces its Basic Policy on the handling of ALPS treated water