Japanese nuclear watchdog says radioactive water leak is ‘serious incident’, upgrades Fukushima leak danger level.
Another tank with highly radioactive water at the devastated Fukushima nuclear power plant has leaked, reported operator TEPCO. An estimated 300 metric tons of highly radioactive water is believed to have leaked from one of the hundreds of storage tanks at Japan’s tsunami-crippled nuclear power plant, the operator said on Tuesday as it battled the latest toxic water threat report said.
Official said that the water’s radiation level, measured about 50 centimeters above the puddle, is about 100 millisieverts per hour – five times the annual exposure limit for plant workers.
“This means you are exposed to the level of radiation in an hour that a nuclear plant worker is allowed to be exposed to in five years,” he told reporters.
The company later identified which tank was leaking but had yet to find the spot from where it was leaking.
“We have instructed TEPCO to find the source of contaminated water … and to seal the leakage point,” according to an official from the Japanese Nuclear Regulation Authority.
Tepco hopes to clean the water using an elaborate filtering system and start releasing water contaminated at low levels into the ocean. Those plans have been delayed by technical problems and protests from fishermen.
Desperate for options to stem the leaks, Japan’s Nuclear Regulation Authority has suggested surrounding the plant with a huge underground ice wall. That plan has its own drawbacks, however, and would require huge amounts of electricity, according to New York Time report.
Report also said that no one is officially recorded as having died as a result of the meltdowns of Fukushima’s reactors, large areas around the plant had to be evacuated.