Tepco Faces 132 Olympic Pools Worth of Radioactive Water

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Tokyo Electric Power Co. has accumulated the largest pool of radioactive water in the history of nuclear accidents. The utility must now decide what to do with it: dump in the ocean, evaporate into the air, or both.

The more than 330,000 metric tons of water with varying levels of toxicity is stored in pits, basements and hundreds of tanks at the wrecked Fukushima nuclear plant. The government said this week it will take a bigger role in staunching the toxic outflow that’s grown to 40 times the volume accumulated in the atomic disaster at Three Mile Island in the U.S.