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TEPCO officials confirmed today the months-long of suspicion that the Reactor No. 1 at Fukushima suffered a full meltdown. According to the disclosure today, workers discovered earlier this week that No. 1's containment vessel has been leaking water and today discovered a sizeable hole they believe was created by fallen fuel pellets. The water leakage not only indicates that the clean up efforts will take longer than originally expected but also that the worst case scenario was already underway when TEPCO said it had been avoided.
Originally posted by russ1969
At least someone here has some common sense. People worry to much. And the fact is, The fuel rods melting and falling to the containment vessel is what is supposed to happen. Once it all goes down they will seal it off forever. Nothing to worry about.
The scale is intended to be logarithmic, similar to the moment magnitude scale that is used to describe the comparative magnitude of earthquakes. Each increasing level represents an accident approximately ten times more severe than the previous level.
Level 7: Major accident Impact on people and environment
Major release of radioactive material with widespread health and environmental effects requiring implementation of planned and extended countermeasures
Emergency at Fukushima Daiichi Nuclear Power Plant Overall, the situation at the Fukushima Daiichi nuclear power plant remains very serious.
1. Reduce radiation levels in the reactor building by installing a filtered air circulation system (completed), remove rubble, decontaminate and install shielding;
2. Recalibrate existing reactor pressure vessel water level and pressure instruments and install additional reactor pressure vessel water level gauges to improve monitoring of conditions inside the reactor pressure vessel;
3. Install primary and secondary closed-loop cooling systems;
4. Flood the containment to provide a water supply for the primary system.
Gamma dose rates are measured daily in all 47 prefectures. On 10 May the value of gamma dose rate reported for Fukushima prefecture was 1.7 µSv/h. In all other prefectures, reported gamma dose rates were below 0.1 µSv/h with a general decreasing trend.
As of 11 May, the only food restrictions remaining are in Fukushima prefecture and for the cities of Kitaibaraki and Takahagi in Ibaraki prefecture.
The increase in the radioactivity in the marine environment had occurred by aerial deposition and by discharges and outflow of water with high level radioactivity.
A worker at the crippled Fukushima nuclear power plant died Saturday after collapsing while carrying materials as part of crisis-fighting operations, the operator said. It is the first time a worker has died at the plant operated by Tokyo Electric Power Co. since the March 11 earthquake and tsunami triggered a series of radiation leakage accidents there. No radioactive substances have been detected on the man, who was in his 60s, the utility said. The man had started working at the plant on Friday and was wearing protective gear at the time of the accident. He was exposed to radiation totaling 0.17 millisievert.
Originally posted by malcr
Originally posted by amazing
In the this modern age, we can't think of a better way to cool things than water? meh. Stupid
That's not as dumb as using a "controlled" nuclear reaction to BOIL WATER to generate steam to drive a turbine to create electricity.
Originally posted by Bixxi3
A worker at the crippled Fukushima nuclear power plant died Saturday after collapsing while carrying materials as part of crisis-fighting operations, the operator said. It is the first time a worker has died at the plant operated by Tokyo Electric Power Co. since the March 11 earthquake and tsunami triggered a series of radiation leakage accidents there. No radioactive substances have been detected on the man, who was in his 60s, the utility said. The man had started working at the plant on Friday and was wearing protective gear at the time of the accident. He was exposed to radiation totaling 0.17 millisievert.
Worker dies after collapsing at Fukushima plant
Anyone else surprised that no workers have died from radiation? Do you think there hiding it. Because it took a few weeks for the Chernobyl workers and Emergency service workers, who were exposed, to die.
Two Chernobyl plant workers died on the night of the accident, and a further 28 people died within a few weeks as a result of acute radiation poisoning.edit on 14-5-2011 by Bixxi3 because: (no reason given)
A robot has detected highly dangerous levels of radiation in the Fukushima No. 1 nuclear power plant's No. 3 reactor building, it has been learned, indicating further safety measures will be needed before workers can enter the structure. According to plant operator Tokyo Electric Power Co., the remote-controlled PackBot robot on Tuesday found radiation levels in the northwestern section of the building of 49 to 120 millisieverts per hour, which would pose a threat to human workers.
... TEPCO has announced that water has been leaking through small openings in the bottom of the No. 1 reactor's pressure vessel.
Originally posted by Bixxi3
reply to post by predator0187
Thank you for the reply im actually really surprised that they didn't learn from a massive past mistake. something this serious you'd really hope so. When is enough, enough?
While the preparatory work was being started now, Tepco said the actual installation of the cover for Unit 1 at the multi-reactor plant would begin in June. The entire exercise was being so designed as to minimise the exposure of workers to high levels of radiation at the unit. While the company did not specify, in its latest statement on this subject, that Unit 1 was now in a state of melt-down, observers were of this view.
On another front in Japan's continuing nuclear crisis, two active reactors at the Hamaoka plant in central Japan were completely shut down by Saturday in accordance with a directive from Japanese Prime Minister Naoto Kan. The plant's operator announced the shut-down schedule on Friday.
The ash, containing an unidentified substance with a radioactive density of 170,000 Becquerels per kilogram, was collected from a plant in Koto Ward, eastern Tokyo, the Nikkei and Sankei dailies said, quoting metropolitan government sources.
The substance has yet to be identified and researchers are currently looking into whether it is radioactive cesium, they said.
Originally posted by EVILteddie
reply to post by russ1969
Except that the containment vessel is leaking, which is why this is such bad news.