Tokyo Electric Power Co.’s claim that radioactive water leaking into the sea from the wrecked Fukushima nuclear plant is confined to the coast doesn’t make scientific sense, according to a U.S. researcher who surveyed waters off the site last month.
Japan’s government has supported the utility’s statement that the irradiated groundwater flowing into the Pacific Ocean at a rate of some 400 tons a day remains in an area of 0.3 square kilometers (0.12 square miles) within the bay fronting the atomic station.