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2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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IAEA report confirms safety of discharged Fukushima water
An International Atomic Energy Agency task force has confirmed that the discharge of treated water from Japan’s Fukushima Daiichi nuclear power plant is proceeding in line with international safety standards. The task force’s findings were published in the agency’s fourth report since Tokyo Electric Power Company began discharging Fukushima’s treated and diluted water in August 2023.
More information can be found on the IAEA’s Fukushima Daiichi ALPS Treated Water Discharge web page.
Takashi Honda, Masakiyo Izumiya, Akira Minato, Katsumi Ohsumi, Hideo Matsubayashi
Nuclear Technology | Volume 64 | Number 1 | January 1984 | Pages 35-42
Technical Paper | Material | doi.org/10.13182/NT84-A33325
Articles are hosted by Taylor and Francis Online.
Cobalt-60 contained in reactor water primarily causes contamination of boiling water reactor (BWR) out-of-core components. To elucidate the contamination mechanism, the deposition of radionuclides on stainless steels has been evaluated in actual reactor water at a commercially operating BWR. No significant difference was observed between Types 304 and 316L stainless steel. The deposition rate of 60Co was mainly controlled by the growth of oxide films formed on steel. The deposition kinetics of anion 51Cr was very different from that of cations 60Co and 58Co. An Arrhenius temperature dependence was established for the deposition rate of Co between 130 and 240°C.
