jones_supa writes "After several unsuccessful attempts, Tepco has announced that the leak of radioactive water into the Pacific Ocean has been plugged. They injected 1500 litres of sodium silicate ("water glass") to solidify the crack, from where highly radioactive water had been seeping through and running into the sea. The company still needs to pump mildly radioactive water to sea as all the cooling water cannot fit in the plant's own storages. Chief Cabinet Secretary Yukio Edano also reminds that the patch has still to be inspected throughly and that the possibility for other leaks remains."
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