Drainage valves of concrete barrier opened during Fukushima tank leakage: Tokyo Shimbun
A Japanese daily has reported all water drainage valves of a concrete barrier nearby the leaking tank at the crippled Fukushima nuclear plant were, in fact, opened when highly radioactive water leaked and drained into the ocean.
This according to the Tokyo Shimbun, which then said, if all 24 valves had been closed, at least half of the 3-hundred tons of contaminated water would have been contained within the barrier and allowed an earlier discovery of the water leak.
Citing plant operator TEPCO, a number of Japanese media on Friday said two additional tanks are suspected of leaking, after authorities found 70 to 1-hundred millisieverts per hour of radiation nearby the tanks in question.
Earlier this week, Japan's nuclear agency said it would bump up the level of crisis two notches to three on an international scale for radiological releases.
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