Radiation levels remain extremely high in part of the No. 2 reactor complex at the earthquake-damaged Fukushima Daiichi nuclear power plant although an earlier, even more alarming reading was incorrect, its owner said early Monday.
Water pooling in the reactor's turbine building was still giving off radioactivity at a level of 1,000 milliSieverts per hour, the Tokyo Electric Power Company told reporters. That's more than 330 times the dose an average person in a developed country receives per year, and four times the top dose Japan's health ministry has set for emergency workers struggling to prevent a meltdown at the damaged plant.
But Tokyo Electric said that figure is a mere 100,000 times normal levels for reactor coolant, not the 10 million times normal reported Sunday.
Tokyo Electric said Sunday that the water had contained a sharply elevated level of iodine-134, a short-lived isotope produced in a nuclear reaction. But after Japanese regulators questioned the readings, the utility conducted new tests that found a minimal level of the substance, the company said.
you do realise the half life of this material is 56 mins so it may be gone already or half dead then half dead then half dead and so on
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