ANS backs Fukushima Daiichi treated water discharge plans

March 6, 2020, 12:44PMANS News

ANS President Marilyn Kray has expressed support for the continued recovery operations at the Fukushima Daiichi nuclear power plant, which sustained damage in the aftermath of a March 2011 earthquake and tsunami. Kray sent a letter on March 3 to Hiroshi Kajiyama, head of Japan’s Ministry of Economy, Trade, and Industry (METI), about the work of the ministry’s Subcommittee on Handling of the ALPS (Advanced Liquid Processing System) Treated Water and the findings of a February 2020 subcommittee report.

Storage space for water that has been processed by the ALPS is limited and could be full in about two years. In its report, the ALPS subcommittee recommended releasing purified, diluted water that has been stored at the Fukushima Daiichi site to the ocean and/or the atmosphere. ANS supports that plan.

“Several senior members of the ANS technical leadership reviewed the ALPS subcommittee report and determined that it provided balanced and highly credible recommendations that are consistent with current regulatory standards in Japan and around the world,” Kray wrote. “If the current recommendations are followed, then the public exposure from the release of the re-purified and diluted water would be many orders of magnitude less than the exposure from natural radiation per year.”

Kray encouraged Kajiyama and the METI to maintain an open dialogue with stakeholders, adding that, “ANS’s diverse membership of engineers, scientists, educators, and others from the United States and around the world stands ready to offer whatever support we can provide to your efforts, today and in the future.”

The full letter is posted on the ANS website. Visit for more information about ANS’s participation in U.S. and international public policy discussions.

Related Articles

What is a nuclear professional?

June 10, 2022, 12:00PMNuclear News

Years ago, my then boss was trying to convince me to accept an undesirable (to me) assignment, and he asked me, “Aren’t you a professional?” I wasn’t quite sure how to answer. By the...

ANS approves two new student sections

May 20, 2022, 7:01AMANS News

Earlier this month, the ANS Board of Directors approved the creation of two new student sections—Reed College in Portland, Ore., and Boise State University in Boise, Idaho.ANS’s student...

ANS in-person meetings are back!

April 22, 2022, 9:35AMANS Nuclear Cafe

After nearly two years of challenging absence, ANS meetings in 2022 have returned to being fully in-person events.The theme for this year’s in-person ANS Annual Meeting, to be held June...

The American Nuclear Society and the Health Physics Society launch  collaboration for answering the media's questions on radiation and nuclear science

The HPS Ask the Experts and the ANS Rapid Response Taskforce are partnering to monitor the nuclear and radiological situation in war-besieged Ukraine and are ready for media inquiries.

April 20, 2022, 9:59AMPress Releases

The Health Physics Society (HPS) and the American Nuclear Society (ANS) are teaming up to better serve our memberships and the public in understanding radiation and nuclear safety...