Several workers were evacuated on Sunday morning at the Fukushima nuclear plant after the level of radioactivity exceeded 10 million times the normal.
The water used to cool the reactor number two was found extremely high amounts of particles of radioactive iodine.
Measured in samples from the water, found in the basement of the turbine hall located behind the reactor is milisievert 1,000 per hour, said a spokesman for Tokyo Electric Power Company (TEPCO).
“This figure is ten million times greater than the radioactivity found in water in a reactor generally in good condition,” he explained.
According to him, the fuel in the reactor core has probably suffered damage during an onset of fusion, occurred immediately after an earthquake followed by tsunami on 11 March.
The intervention teams began to use fresh water to cool reactors. This is because sea water that used to accelerate corrosion and could now pose a threat.
The government in Tokyo has announced that the efforts of Japanese workers at Fukushima Daiichi nuclear power plant, to cool the reactors suffered a new blow on Friday after a senior official said the reactor vessel 3 was damaged.
Hidehiko Nishiyama, deputy director of the Japanese Agency for Nuclear and Industrial Safety, explained that the possibility exists that radiation emanated from the reactor fuel – a mixture of uranium and plutonium – to be released