Japan has revised a roadmap for the cleanup of the tsunami-wrecked Fukushima nuclear plant, further delaying the removal of thousands of spent fuel units that remain in cooling pools.
FILE - This March 11, 2012, file photo, shows three melted reactors, from left, Unit 1, Unit 2 and Unit 3 at Fukushima Dai-ichi nuclear power plant in Okuma, Fukushima prefecture, Japan. Japan revised a roadmap on Friday, Dec. 27, 2019, for the tsunami-wrecked Fukushima nuclear plant cleanup, further delaying the removal of thousands of spent fuel units that remain in cooling pools since the 2011 disaster.
Fuel rod removal at the Unit 1 reactor pool will begin sometime in 2027-2028, after debris is cleaned up and a huge rooftop cover installed to contain radioactive dust. Fuel removal at Unit 2 pool is to begin in 2024-2026. Work at the Unit 3 reactor pool began in April 2019 and all 566 units will be removed by March 2021.
The water is still somewhat contaminated, but TEPCO says further treatment can remove all but radioactive tritium to levels allowed for release. Experts say tritium is not harmful to humans in small amounts and has been routinely released from nuclear plants around the world.Removing an estimated 880 tons of molten fuel from Fukushima's three melted reactors is the toughest and unprecedented challenge.
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