Ongoing restore work is interrupted by a recurrence of gray smoke from the south-east side of unit 3 (the general area of the spent-fuel pool) seen at 15:Fifty five and dying down by 17:55. Staff are evacuated from unit 3, however no modifications in radiation measurements or
vapefavorite reactor status are seen. Due to protecting gear, the employees are only exposed to a small quantity of radiation (about 2 mSv). The staff obtain a dose of between 3 and
vapeoffen four mSv every.
Employees plan to pump water into turbine condensers, but must pump water out of them first. 8 days), had spiked since last sampled on 2 March 2011, when these four nuclides were below detection limits. With information from the federal government report, the newspaper compares the March timelines offered by TEPCO and by NISA, which had performed additional evaluation; there have been differences in the theoretical timing of events of up to 29 hours in the days following the tsunami.
CBS/AP (15 March 2011). "Radiation spike hinders work at Japan nuke plant". Beth Thomas (31 October 2011). "Fukushima Plant Launched Record Amount of Radiation into Ocean". TEPCO now claims that there was no explosion at reactor number 2 on 15 March as beforehand reported, and that as a substitute the explosion occurred at reactor
vapeimage number 4. However, TEPCO has no explanation for the observed rise in radioactive emissions from reactor 2 presently.
Mackey, Robert (15 March 2011). "Latest updates on Japan's nuclear disaster and earthquake aftermath". Yamaguchi Mari (6 April 2011). "Japan nuclear disaster: Workers concentrate on stopping more hydrogen explosions". Shino Yuasa (24 May 2011). "Fuel Rods at Japan Nuke Plant Mostly Melted". TEPCO admits that this radioactive water may be mixing with the bottom water,
vaporlead but claims that the tunnel shouldn't be related to the sea. At roughly 14:30 TEPCO publicizes its perception that the gasoline rod storage pool of unit 4 - which is located outside the containment space - might have begun boiling.
TEPCO estimates that 749,000 cubic metres of contaminated debris from Fukushima Daiichi shall be produced by the year 2027, and
vapefavorite releases a plan for incineration and storage of this waste. This announcement failed to lay to relaxation substantial issues arising from TEPCO's inability to straight measure temperatures at the bottoms of the containment vessels, and the fact that the location is simply too radioactive for visible confirmation of the fuel rods' status.
Ninety °C and
vaporeach the dose rate 6 meters above the pool spikes at 84 mSv/h. Levels of "over 1000" and 750 mSv/h are reported from water inside unit 2 (however exterior the containment construction) and three respectively. The activity focus of the water is about 3.9 GBq/L. A spokeswoman for Japan's Nuclear and Industrial Security Company says the less-contaminated water must be disposed of in order that staff can safe a spot to store extra extremely contaminated water on the location.
US Nuclear Regulatory Commission Chairman Gregory Jaczko,
vapeput visiting Japan, confirmed that the Daiichi reactors had been stable.