Press Release

January 30, 2024
  • Water & Soil

Publication of a report on Interlaboratory Comparison related to ALPS treated water conducted jointly with IAEA

1. The International Atomic Energy Agency (IAEA) has been conducting Interlaboratory Comparison (ILC) to assist the Government of Japan (GOJ) in ensuring that the results of Sea Area Monitoring in Japan are credible and transparent.
The GOJ would like to announce that the IAEA has released a report summarizing the results of ILC for the purpose of corroboration on the Sea Area Monitoring related to ALPS treated water in 2022.

2. In the report, the IAEA concludes that "Japan's sample collection procedures follow the appropriate" and "the results obtained in ILC demonstrate a high level of accuracy and competence on the part of the Japanese laboratories involved in the analyses of radionuclides in marine samples for environmental monitoring".
 
3. Last December, the IAEA has separately published the other report on ILC in 2022, which has been conducted since 2014 to assist the GOJ in ensuring cfedibility and transparency of Sea Area Monitoring data related to the accident at TEPCO's Fukushima Daiichi Nuclear Power Station.

■Outline of ILC

The Ministry of the Environment (MOE), Japan, conducts Sea Area Monitoring related to ALPS treated water based on the Comprehensive Radiation Monitoring Plan. Since 2022, this ILC has been started based on the Terms of Reference (TOR) on reviews of safety aspects handling ALPS treated water in July 2021 with the IAEA.
In addition to experts from the IAEA, experts from the laboratories of ALMERA*1 in Finland*2 and the Republic of Korea visited Japan in November 2022 to jointly collect samples*3. This press release is to announce the publication of the report on the results of the ILC in 2022.
Another ILC has been conducted by the IAEA since 2014 to assist the GOJ in ensuring credibility and transparency of Sea Area Monitoring data related to the accident at TEPCO's Fukushima Daiichi Nuclear Power Station and the IAEA released the report summarizing the results of this ILC in 2022 last December*4.

*1 The ALMERA network (Analytical Laboratories for the Measurement of Environmental Radioactivity) is a network established in 1995 and comprising 200 member laboratories globally that is coordinated by the IAEA to maintain and develop capability on the determination of radionuclides in environmental samples.

*2 Finland did not analyze the samples but participated only.

*3 Collection of Marine Samples as part of Joint Project with IAEA (Press Release on October 31, 2022):Japanese only
    https://www.env.go.jp/press/press_00758.html

*4 Publication of a report on Interlaboratory Comparison conducted jointly with IAEA (Press Release on December 12, 2023)
    https://www.env.go.jp/en/press/press_02262.html
 

■ Full report

The report is available on the IAEA website.
https://www.iaea.org/sites/default/files/1st_ilc_marine_monitoring.pdf