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Public materials relating to the Fukushima Daiichi Nuclear Power Station are made available.

Reference Materials

Contents

October 2026

Oct 5, 2026: Fukushima Daiichi Nuclear Power Station Commencement of the 6th (24th overall) Discharge of ALPS Treated Water into the Sea in FY2026
Oct 1, 2026: Fukushima Daiichi Nuclear Power Station Unit 2 PCV Internal Investigation / Status of Fuel Debris Trial Retrieval

Oct 1, 2026: Fukushima Daiichi Nuclear Power Station Analysis Results and the Scheduled Date of Commencement for the 6th (24th overall) Discharge in FY2026 of ALPS Treated Water into the Sea

Oct 1, 2026: ALPS Treated Water Discharge Status Update

*From May 2022, the page for posting the analysis results of fish and shellfish was changed. Please see here.

Regularly Issued Materials

Materials	Supplementary Materials
The Status of Storage and Treatment of Accumulated Water Containing High-Level Radioactive Materials at Fukushima Daiichi Nuclear Power Station (updated weekly on Fridays)	Supplementary Materials
Evaluation of the Exposure Levels of Workers Engaged in Radiation Work at the Fukushima Daiichi Nuclear Power Station (updated at end of each month)	-
Trends in Volume of Groundwater Drain Transfer to Buildings and Groundwater Inflow (updated weekly on Fridays)	-
Marine Organism Rearing Test at Fukushima Daiichi Nuclear Power Station – Marine Organism Rearing Log –	-

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