The overpowering earthquake and tsunami that ripped through northern Japan in March 2011 took so much from Tatsuo Niitsuma, a commercial fisherman in this coastal city in Fukushima Prefecture. Now, nearly nine years after the disaster, Mr. Niitsuma, 77, is at risk of losing his entire livelihood, too, as the government considers releasing tainted water from a nuclear power plant destroyed by the tsunami's waves. Prime Minister Shinzo Abe's cabinet and the Tokyo Electric Power Company - the operator of the Fukushima Daiichi plant, where a triple meltdown led to the worst nuclear crisis since Chernobyl - must decide what to do with more than one million tons of contaminated water stored in about 1,000 giant tanks on the plant site. On Monday, Japan's Ministry of Economy, Trade and Industry proposed gradually releasing the water into the ocean or allowing it to evaporate. For years, the power company, known as Tepco, said that treatment of the water ... was making it safe to release. But it is actually more radioactive than the authorities have previously publicized. Officials say that it will be treated again, and that it will then be safe for release. Regardless of government assurances, if the water is discharged into the sea, it will most likely destroy the livelihoods of hundreds of fishermen like Mr. Niitsuma. Consumers are already worried about the safety of Fukushima seafood, and dumping the water would compound the fears.