A tank at Japan’s damaged Fukushima nuclear plant has leaked another 100 metric tons of highly contaminated water, the worst incident since August, according to Reuters.
Operator Tokyo Electric Power Co. (Tepco) said Thursday that water had overflowed late Wednesday after a valve was accidently left open.
The leak is considered a level three, or “serious incident,” on the seven-point scale.
Last week, a nuclear regulatory official said that despite repeated requests, the utility postponed the release of measurements of highly radioactive strontium-90 in the groundwater.
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