NHK, Feb. 20, 2014: Record-high tainted water leak at Fukushima plant [...] the leaked water contained an extraordinarily high 230-million becquerels per liter of beta-ray emitting substances, consisting mainly of strontium 90. The level is about 7.6 million times the government’s permissible standard [...] the highest level of radioactive substances detected so far in the series of tank leaks at the site. [...] Officials say they managed to stop the leak [...] 6 hours after the problem was first discovered. [...] The Nuclear Regulation Authority has instructed TEPCO to check other tanks for possible leakages.
Kyodo, Feb. 20, 2014: More than nine hours before the leak was recognized, an alarm indicating a rise in the tank’s water surface level was issued. But workers thought the device was out of order and also could not find leaks when they patrolled the area [...]
NHK, Feb. 20, 2014: [Tepco] found the water contained 240 million becquerels per liter of beta-ray emitting substances, including strontium. [...] an alarm went off more than 9 hours before the leak was spotted, signaling an increase in the tank’s water level. But the tank’s water-level gauge showed a sharp drop, leading workers to believe that the alarm sounded due to the malfunction of the gauge.
AP, Feb. 20, 2014: [Tepco] said the leak involved partially treated water from early in the disaster at the plant, meaning it was more toxic than previous leaks.
Al Jazeera, Feb. 20, 2014: Leaked water is almost 8 million times [legal limit for ocean release].
Tepco: “We think that the amount that leaked out of the barrier is 100 tons [...] As far as we have confirmed at this point there’s no drain nearby [...] We think there’s been no leak into ocean.”
Published: February 20th, 2014 at 9:54 pm ET
- ‘Growing Alarm’: 25 trillion becquerels of Fukushima radioactive material leaks into ground — Kyodo News Advisory: Exact source of extreme contamination unknown; Tank missing 300,000 liters (VIDEO) August 20, 2013
- Reuters: “International alarm” — Fukushima radiation leaks spike to record levels — “Too little, too late” for Japan gov’t September 4, 2013
- Nuclear Official: Growing alarm at Fukushima’s out of control radioactive leaks… Emergency is accelerating due to “faster-than-expected swelling” underground — TV: Tepco now paving over surface with asphalt (VIDEO) August 8, 2013
- New York Times: “Potential for huge spill” of highly radioactive liquid from many Fukushima tanks all at once, says nuclear design expert — Top Officials: Leaks from more tanks are “the biggest concern… We are extremely concerned” August 21, 2013
- Radioactive cesium levels “never seen before” at Fukushima — New record as amount in groundwater nearly doubles in 24 hours — Officials admit ‘may be new leak’ — IAEA urges ‘resumption’ of dumping contaminated water in ocean; ‘All options’ need to be on table (VIDEO) February 14, 2014