The level of radioactive iodine detected in seawater near the Fukushima No. 1 nuclear power plant was 1,250 times above the maximum level allowable, the Nuclear and Industrial Safety Agency said Saturday, in a development that indicates contamination from the ruined reactors is spreading.
Tokyo Electric Power Co. meanwhile admitted it neglected to alert workers when it detected high radiation in a reactor building nine days ago.
The iodine-131 in the seawater was detected at 8:30 a.m. Friday, about 330 meters south of the plant’s drain outlets. Previously, the highest amount recorded was about 100 times above the permitted level.
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