Steps to purify a radioactive water buildup at the stricken Fukushima No. 1 nuclear power plant have come to naught, forcing the operator, Tokyo Electric Power Co., to go back to the drawing board.
Rows of storage tanks on the grounds of the Fukushima No. 1 nuclear power plant contain water contaminated by radioactive materials. (Asahi Shimbun file photo)
On Sept. 28, TEPCO acknowledged that about 80 percent of the water in giant storage tanks on the premises exceeded government standards for radioactive materials even though it had already been processed.
Some of the “processed” water showed concentrations of radioactive materials at more than about 20,000 times the standard used to determine if the water is safe enough to discharge into the ocean.
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