Japan's efforts related to ALPS treated water

Efforts by the Government of Japan, regarding the safety of ALPS treated water, measures against reputational damage, and explanation to world leaders and international organizations.

Safety of ALPS treated water

What is ALPS treated water?

Process of ALPS treated water

"ALPS treated water" is the water that contains radioactive substances from inside the buildings of the Tokyo Electric Power Company's Fukushima Daiichi Nuclear Power Station, and that has been purified and treated until it satisfies safety standards for all radioactive substances besides tritium. For tritium, the water is significantly diluted with seawater before the discharge so that it fully satisfies safety standards. There is no concern about effects on human health or the environment.
The concentration of radioactive substances in the ocean prior to and after the discharge will be monitored under reviews by a third party in order to ensure safety.

Annual Tritium Discharged in Neighboring Countries and Regions

Tritium is discharged into the sea and rivers as liquid effluents and into the atmosphere through ventilation etc., in compliance with the laws and regulations of each country and region.

Impact of ALPS treated water on the human body, etc.

The results of the assessment of the impact of ALPS treated water on humans are approximately 1/70,000~1/1,000,000 of the impact from natural radiation (Japanese average: 2.1 mSv per year).

What is tritium?

Tritium is a relative of hydrogen atom with two more neutrons that is widely present in nature. Tritium emits very weak radiation that can be prevented with a sheet of paper. Even if it enters the body, it is not accumulated and is excreted with water.


The Discharge of ALPS Treated Water: Ensuring Safety and Paving the Way Toward Decommissioning

Japan will progress toward the decommissioning, of Fukushima Daiichi Nuclear Power Station, discharging ALPS treated water with safety as the top priority.

Preventing reputational damage

In order to promote domestic industries and advance reconstruction, the Government will take full responsibility in carrying out measures against reputational damage and in meeting concerns regarding the continuity of livelihoods caused by the discharge of ALPS treated water.

5-pillar package to protect the fisheries industry


The Government has compiled a 5-pillar package of 100.7 billion yen, including a reserve of 20.7 billion yen.

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Supporting the Sanriku and Joban Regions through Food

The Sanriku and Joban regions, consisting of Iwate, Miyagi, Fukushima and Ibaraki prefectures, offer wonderful fish and other marine products. We've just eaten some of their fine products.
Why don't you join us in showing your support by buying some safe and flavorful fish and marine products from Sanriku and Joban and from all around Japan?

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Visit to Fukushima prefecture

Prime Minister Kishida inspected the facility for discharging ALPS treated water into the sea, and was briefed on the status of efforts to ensure the safety of the process. The discharge is a long-term task. The government will spare no effort in ensuring safety, disseminating relevant information in a highly transparent manner, and carrying out measures against reputational damage.

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Towards better global understanding

IAEA review

The International Atomic Energy Agency (IAEA), which has extensive expertise related to nuclear power, has also confirmed that discharge into the sea is based on scientific evidence and consistent with international practices.
The IAEA will carry out its review not only before the discharge but also after the discharge, on a long-term basis.

The IAEA has confirmed that theses points meet international standards

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ASEAN-related Summit meetings

With regard to the discharge of ALPS treated water into the sea, Prime Minister Kishida once again comprehensively explained Japan's responses to the countries of ASEAN, the G20 members, and others during the succession of meetings and bilateral talks.

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Japan-ROK Summit

Regarding the ALPS treated water, Prime Minister Kishida mentioned the Comprehensive Report issued by IAEA, and reiterated, as Prime Minister of Japan, that every possible measure would be taken to ensure the safety of discharge and that any discharge that would harm the health of Japanese and Korean citizens or the marine environment would not occur.

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IAEA report

Director General Grossi presented the comprehensive report on the safety review of the ALPS treated water. The Government of Japan will continue to work based on scientific evidence and give detailed explanations with high transparency both at home and overseas.

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Response from the international community


Vice President Harris welcomed Japan's continued transparency and engagement with the scientific community, as well as with regional stakeholders, related to its release of treated water from the Fukushima Daiichi site.

(ASEAN-related Summit meetings: East Asia Summit)


Foreign Minister Kuleba stated that Ukraine supports Japan’s position, advancing measures in coordination with the IAEA.

(Japan-Ukraine Foreign Ministers’ meeting)


The UK is fully supportive of the Government of Japan in taking such action.

(Statement by the Spokesperson of UK Foreign, Commonwealth and Development Office)


Prime Minister Albanese commended Japan’s efforts regarding the Fukushima Daiichi Nuclear Power Station as being made in a responsible manner in cooperation with the International Atomic Energy Agency (IAEA) and the measures that Japan has taken in this respect.

(G20 Summit: Japan Australia leaders' meeting)


Canada believes in scientific-based evidence. We welcome the report from the IAEA following Japan’s close cooperation with the Agency, which demonstrated that the water released from Fukushima Daiichi respects internationally accepted nuclear safety standards.

(Global Affairs Canada, in a statement)

Cook Islands

Prime Minister Brown stated that he supports Japan's efforts on ALPS treated water and would continue to work closely with Prime Minister Kishida.

(ASEAN-related Summit meetings: Japan-Cook Islands Prime Ministers' informal talks)


I support a methodical basis for doing this, to use the best science and data to make sure that the impact on the environment, especially the ocean, which not only the people of Japan depend on, but all of us in the Pacific depend on, has not impacted negatively.

(President of the Republic of Palau, in an interview)


We commended the IAEA Director General's report to the Japanese Prime Minister on July 4.

(Ministry for Europe and Foreign Affairs of France)


Foreign Minister Rau commended Japan’s science-based and transparent efforts regarding the Fukushima Daiichi accident, and stated that he trusts Japan’s efforts regarding the discharge of ALPS treated water.

(Japan-Poland Foreign Ministers’ meeting)


President Khurelsukh expressed his support for Japan’s position.

(Japan-Mongolia Leaders’ Working Lunch)

European Union (EU)

We commend the Japanese authorities for providing regular updates on the Fukushima status in a timely and transparent manner.

(Statement by the EU)

Efforts by Relevant Ministries and Agencies

Monitoring the safety of ALPS treated water

Relevant ministries and agencies coordinate to monitor the safety of ALPS treated water throughout the entire process, from pre-discharge analysis to the analysis of surrounding waters, fishery products and marine life.