![]() TEPCO has attempted to use custom-built robots to access high-dose radiation parts of the reactor buildings where humans cannot go. ![]() "So in total, about 600 tonnes of melted debris fuel and a mixture of concrete and other metals are likely to be there." Loading "It's estimated that approximately 200 tonnes of debris lies within each unit," said TEPCO's Naohiro Masuda. ![]() You may just have to wind up leaving it there and somehow entomb it as it is." Radiation killing search robots inside reactorįor the first time, TEPCO has revealed just how much of the mostly uranium fuel melted down after the tsunami swamped the plant. "It may be possible that we're never able to remove the fuel. "Nobody really knows where the fuel is at this point and this fuel is still very radioactive and will be for a long time," said Gregory Jaczko in an interview with Foreign Correspondent in Washington. The head of the United States Nuclear Regulatory Commission (NRC) at the time of the meltdowns at Fukushima doubts the fuel can be retrieved, saying such an operation has never been done before. But unfortunately, we don't know exactly where is." "In reactors 2 and 3, about 30 per cent to 50 per cent remains in the pressure vessel and the rest has melted down. "In Reactor 1, all of the fuel has melted down from inside the pressure vessel," Mr Masuda said. TEPCO says the process will take 30 to 40 years and tens of billions of dollars. Five years after Fukushima, the clean-up continues
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