Seawater outside the hobbled nuclear power plant in northeastern Japan was found to contain 3,335 times the usual amount of radioactive iodine – the highest rate yet and a sign that more contaminated water was making its way into the ocean, officials said Wednesday.
The amount of iodine-131 found offshore some 300 yards (meters) south of the coastal Fukushima Dai-ichi power plant does not pose an immediate threat to human health but was a "concern," said Hidehiko Nishiyama, a Nuclear and Industrial Safety Agency official. He said there was no fishing in the area.
"We will nail down the cause, and will do our utmost to prevent it from rising further," Nishiyama said.
Read the rest of the story: Biggest spike in radiation at Japan power plant.
For an assessment of the Nuclear Crisis affecting Japan and the radiation levels measured go to http://blog.energy.gov/content/situation-japan.