Radiation within the damaged Fukushima nuclear power station has more risen to exceed the previous by a factor of seven. It recently hit 530 sieverts per hour. The previous record as 73 sieverts per hour. Five sieverts is enough to kill about fifty percent of exposed people within a month. A one-meter wide hole has appeared beneath a reactor’s pressure vessel. The radiation levels are also too high for robots to survive more than a couple of hours. The greatest worries are the unknowns. Monitors measure the effects, but the specific causes haven’t been identified. Without specific causes it is difficult to identify specific fixes. In the meantime, deterioration will continue. At least for now, no external leaks have been recorded.
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