A massive amount of radioactive materials “attached to shield plugs of the containment vessels in the No. 2 and No. 3 reactors,” according to Japan’s Nuclear Regulation Authority (NRA).
The finding poses an “extremely serious” challenge to the shutdown process NRA has been attempting at the site, part of an overall decommissioning of the plant.
“It appears that nuclear debris lies at an elevated place,” NRA chairman Toyoshi Fuketa said at a news conference earlier this month. He explained the elevated location of the debris would make it “exceptionally difficult” for workers to move the shield plugs as part of the planned dismantling process.
“This will have a huge impact on the whole process of decommissioning work” and may force the NRA to reassess its plan surrounding the project, according to Fuketa.
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