Utility retests reactor water after radioactivity spikesTokyo (CNN) March 27, 2011
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.
