Mari Saito reports that the “operator of Japan’s Fukushima nuclear plant said on Thursday [, 20 February 2014] that 100 tonnes of highly contaminated water had leaked out of a tank, the worst incident since last August , when a series of radioactive water leaks sparked international alarm. Tokyo Electric Power Co told reporters the latest leak was unlikely to have reached the ocean. But news of the leak at the site, devastated by a 2011 earthquake and tsunami, further undercut public trust in a utility rocked by a string of mishaps and disclosure issues”.
Saito continues that “Tepco said water overflowed from a large storage tank at the site late on Wednesday [, 19 February 2014] after a valve had remained open by mistake and sent too much contaminated water into a separate holding area. A worker patrolling the area, around 700 metres from the ocean, spotted drips of water leaking through a drain attached to the side of the tank. The utility has been harshly criticised for its response to the three nuclear meltdowns following the quake and tsunami at the plant, 220 km (130 miles) north of Tokyo. A nuclear regulatory official last week said Tepco delayed release of record-high measurements of strontium-90 in groundwater despite repeated requests by the regulator. Initial measurements of the latest incident showed the leaked water had a reading of 230 million becquerels per litre of beta-emitting radioactive isotopes, including strontium 90”.
 Mari Saito, “New highly radioactive leak at Japan’s Fukushima plant” Reuters (20 Feb 2014). http://www.firstpost.com/world/new-highly-radioactive-leak-at-japans-fukushima-plant-1400111.html?utm_source=twitterfeed&utm_medium=twitter.
 Mari Saito, “New highly radioactive leak at Japan’s Fukushima plant”.