NEW : Besides radioactive iodine , high levels of cesium are also detected . A Tokyo Electric official says it 's not known what caused the radiation spike . Radiation in seawater near nuclear plant tests 1,250 times above normal . Comment: The water is contaminated with Iodine and Cesium.
NEW : Besides radioactive iodine , high levels of cesium are also detected . A Tokyo Electric official says it 's not known what caused the radiation spike . Radiation in seawater near nuclear plant tests 1,250 times above normal . Radiations levels in tap water in Ibaraki prefecture now considered safe .