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Japan - Fukushima Daiichi Nuclear Power Plant Crisis - Units 1 - 6 Reports, News, Graphics - March 11 - March 16
Re: Japan - "Meltdown" and release of radioactive material at Fukushima Daiichi Nuclear Power Station Unit 1 (LEVEL 4 EVENT) - now Unit 3 not cooling
The surface winds have changed since yesterday, it appears that now winds would carry radiation north.
"The next major advancement in the health of American people will be determined by what the individual is willing to do for himself"-- John Knowles, Former President of the Rockefeller Foundation
Re: Japan - "Meltdown" and release of radioactive material at Fukushima Daiichi Nuclear Power Station Unit 1 (LEVEL 4 EVENT) - now Unit 3 not cooling
The weather underground forecast for Fukushima shows the winds on Sunday as ENE, then NW, then N, then WSW!
Monday looks better, Tuesday: N, NE, ENE, then NW - with rain;
SNOW is in the forecast for Wednesday & Thursday with low temps of 21F.
"The next major advancement in the health of American people will be determined by what the individual is willing to do for himself"-- John Knowles, Former President of the Rockefeller Foundation
Re: Japan - "Meltdown" and release of radioactive material at Fukushima Daiichi Nuclear Power Station Unit 1 (LEVEL 4 EVENT) - now Unit 3 not cooling
Re: Japan - "Meltdown" and release of radioactive material at Fukushima Daiichi Nuclear Power Station Unit 1 (LEVEL 4 EVENT) - now Unit 3 not cooling
[9:54 p.m. ET, 11:54 a.m. Tokyo] A meltdown may have occurred at at least one nuclear power reactor in Japan, the country's chief cabinet secretary, Yukio Edano, said Sunday.
He also said that authorities are concerned over the possibility of another meltdown at a second reactor.
"We do believe that there is a possibility that meltdown has occurred. It is inside the reactor. We can't see. However, we are assuming that a meltdown has occurred," he said of the No. 1 reactor at the Fukushima Daiichi nuclear facility. "And with reactor No. 3, we are also assuming that the possibility of a meltdown as we carry out measures."
Edano's comments confirm an earlier report from an official with Japan's Nuclear and Industrial Safety Agency, who said, "we see the possibility of a meltdown."
A meltdown is a catastrophic failure of the reactor core, with a potential for widespread radiation release. However, Toshihiro Bannai, director of the agency's international affairs office, expressed confidence that efforts to control the crisis would be successful.
"Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear." -Nelson Mandela
Re: Japan - "Meltdown" and release of radioactive material at Fukushima Daiichi Nuclear Power Station Unit 1 (LEVEL 4 EVENT) - now Unit 3 not cooling
machine translation -
Unit 3 could melt the fuel rods first
20:12 min 3 twitter tweet on May 13 (NHK leaves the site and click)
枝 野 chief cabinet secretary, in a press conference at 11:00 am on July 13, for Unit 3 of Fukushima Daiichi Nuclear Power Station, the water level is lowered to cool the reactor is estimated that the exposed part of the fuel rod Ru announced. This means that there is a possibility that the fuel rods melted at No. 3.
枝 野 chief cabinet secretary, as a measure to begin to lower the pressure in the reactor at 9:00 am on July 13 too, explained that raise the water level and infused with fresh water reactors. Boric acid in water is also added fuel to minimize the reaction, is that. On at 9:20 am and together began to disconnect the air in the container to lower the pressure containment vessel into the reactor, "followed by No. 1 yesterday, seems to have been released radioactive trace that, "he said. The Fukushima Daiichi nuclear power plant site boundary is 33 minutes at 8:00 am, the highest ever, 1204.2 means that microsievert radiation was measured. This is TEPCO, "in Unit 1 and Unit 3 has been working in deflating the reactor may have influenced these things," I look at this.
Re: Japan - "Meltdown" and release of radioactive material at Fukushima Daiichi Nuclear Power Station Unit 1 (LEVEL 4 EVENT) - now Unit 3 possible "Meltdown"
Japan nuclear blast could be more deadly than Chernobyl, experts fear
Experts in Israel and abroad divided on scope of disaster at Japan's nuclear plants, as Japanese government hasn't provided accurate information regarding threat posed by explosions at Fukushima nuclear power plant.
By Yossi Melman
Since the Japanese government has not provided accurate information regarding the possible threat posed by the explosion at the Fukushima nuclear power plant, experts in Israel and abroad are divided on the scope of the disaster and the ramifications for the environment.
It appears that immediately after earthquake warnings were first heard, the Japanese authorities shut down all six reactors located in the affected region, which lies 250 kilometers north of the capital Tokyo, by cutting off the flow of electricity to the reactors. But the emergency generator, whose function is to provide power to the pump responsible for cooling the reactor, did not activate. As a result, the reactor's core began to heat up.
At the same time, radioactive materials and gases were emitted into the air, but measurements taken indicate that the amount was relatively minimal. The most dangerous elements discharged were iodine and cesium, two by-products of the nuclear fission process that takes place in nuclear plants. These are two relatively volatile compounds that can easily spread into the atmosphere.
Professor Uzi Even of Tel Aviv University, who in the past worked for the Israel Atomic Energy Commission, told Haaretz that these two compounds are extremely dangerous, which is why the Japanese government yesterday began distributing iodine tablets, which neutralize the threat of radioactive poisoning that primarily affects the thyroid gland.
Even recalled that several years ago, Israel had distributed such tablets to residents living in the vicinity of the nuclear reactor in Dimona in the event that dangerous materials leaked into the air. He also noted that another potential source of danger is the possibility that the measuring equipment used to gauge the heat levels in the reactor core could spin out of control as a result of a cut in power. In such a scenario, Japanese experts working to prevent a nuclear disaster would have trouble ascertaining the core's situation.
Hebrew University Professor Menachem Luria, an expert on air quality and poisoning, told Channel 2 on Saturday: "This is very worrying. There is no doubt that we have not seen anything like this in years, perhaps ever since nuclear experiments were conducted in the atmosphere in the 1950s. From what we can gather, this disaster is even more dangerous than Chernobyl, both from the standpoint of the population's exposure to radioactive material and the spread of radioactive contamination in the area."
Luria continued: "Once there is an uncontrollable heating up, the nuclear fuel undergoes a metamorphosis into the gaseous phase. Since we are talking about metals and solid items, they turn into particles that are capable of traveling great distances. They can wander thousands of kilometers."
If these gases are indeed emitted into the atmosphere in large quantities, the wind regime could carry them all the way to China, South Korea, and eastern Russia, or in the other direction, toward Hawaii and the west coast of the United States. The likelihood of this happening, though, is not high.
Experts are now positing two possible scenarios. This first scenario is a disaster on the scale of Chernobyl, where the reactor core melted and enormous quantities of radioactive fallout were discharged into the air before being propelled by the wind and harming civilians living at a relatively great distance from the reactor. Because the core melted, the steel and concrete seal, which was meant to protect the core and prevent dangerous material from being emitted into the air, could not withstand the pressure and collapsed. As a result, thousands of people were killed, though the exact number of deaths remains unknown to this day.
Experts in Israel and abroad divided on scope of disaster at Japan's nuclear plants, as Japanese government hasn't provided accurate information regarding threat posed by explosions at Fukushima nuclear power plant.
Re: Japan - "Meltdown" and release of radioactive material at Fukushima Daiichi Nuclear Power Station Unit 1 (LEVEL 4 EVENT) - now Unit 3 possible "Meltdown"
Wind direction monitored near quake-hit Japan nuclear plant
The wind over a Japanese nuclear plant that is leaking radiation will continue blowing from the south, which could affect residents north of the facility, an official at Japan's Meteorological Agency said on Sunday.
The Fukushima Daiichi plant, operated by Tokyo Electric Power Co's , is located about 240 km (150 miles) north of Tokyo on the country's northeast coast.
The wind will keep blowing from the south in the area from noon until early evening, the official said.
The direction of the wind is a key factor in judging possible damage to the environment from the radiation leaking from the plant, which was devastated on Friday by Japan's biggest earthquake on record and a subsequent tsunami.
The Japan Meteorological Agency said on its website that the weather in the area is likely to be clear on Sunday, with the maximum temperature of 15 Celsius (60 F).
"The next major advancement in the health of American people will be determined by what the individual is willing to do for himself"-- John Knowles, Former President of the Rockefeller Foundation
Re: Japan - "Meltdown" and release of radioactive material at Fukushima Daiichi Nuclear Power Station Unit 1 (LEVEL 4 EVENT) - now Unit 3 possible "Meltdown"
Nuclear and Industrial Safety Agency (NISA) Seismic Damage Information - March 13, 2011
Nuclear and Industrial Safety Agency (NISA) confirmed the current
situation of Higashidori and Onagawa NPSs, Tohoku Electric Power Co.,
Inc; Higashidori, Fukushima Dai-ichi, Fukushima Dai-ni and
Kashiwazaki-Kariwa NPSs, Tokyo Electric Power Co., Inc. and electricity,
gas, heat supply and complex as follows
Re: Japan - "Meltdown" and release of radioactive material at Fukushima Daiichi Nuclear Power Station Unit 1 (LEVEL 4 EVENT) - now Unit 3 possible "Meltdown"
Nuclear and Industrial Safety Agency (NISA) March 12, 2011
Nuclear and Industrial Safety Agency (NISA) confirmed the current
situation of Higashidori and Onagawa NPSs, Tohoku Electric Power Co.,
Inc
Higashidori, Fukushima Dai-ichi, Fukushima Dai-ni and
Kashiwazaki-Kariwa NPSs, Tokyo Electric Power Co., Inc. and electricity,
gas, heat supply and complex as follows:
Re: Japan - "Meltdown" and release of radioactive material at Fukushima Daiichi Nuclear Power Station Unit 1 (LEVEL 4 EVENT) - now Unit 3 possible "Meltdown"
Nuclear and Industrial Safety Agency (NISA) - March 12, 2011 (5 releases)
Nuclear and Industrial Safety Agency (NISA) confirmed the current
situation of Higashidori and Onagawa NPSs, Tohoku Electric Power Co.,
Inc
Higashidori, Fukushima Dai-ichi, Fukushima Dai-ni and
Kashiwazaki-Kariwa NPSs, Tokyo Electric Power Co., Inc. and electricity,
gas, heat supply and complex as follows:
Re: Japan - "Meltdown" and release of radioactive material at Fukushima Daiichi Nuclear Power Station Unit 1 (LEVEL 4 EVENT) - now Unit 3 possible "Meltdown"
The pdf news release posted by LaMenchos in post# 24 is primarily a status report of the utility situation in Japan. It does however contain a detailed time line of events at Fukushima Dai-ichi, Units 1 and 2.
4. Action taken by NISA
(March 11)
14:46 Set up of the NISA Emergency Preparedness Headquarters (Tokyo)
immediately after the earthquake
15:42: TEPCO reported to NISA in accordance with Article 10 of the Act on
Special Measures Concerning Nuclear Emergency Preparedness regarding
Fukushima Dai-ichi, Units 1,2 and 3.
16:36: TEPCO judged the event in accordance with Article 15 of the Act for
Special Measures Concerning Nuclear Emergency Preparedness regarding
Fukushima Dai-ichi, Units 1 and 2.(notified to NISA at 16:45)
18:08: Unit 1 of Fukushima Dai-ni notified NISA of the situation of the
Article 10 of Act on Special Measures Concerning Nuclear Emergency
Preparedness.
18:33: Units 1,2 and 4 of Fukushima Dai-ni notified NISA of the situation of
the Article 10 of Act on Special Measures Concerning Nuclear Emergency
Preparedness.
19:03 : Government declared the state of nuclear emergency
20:50: Fukushima prefecture’s emergency preparedness headquarters -
issued a directive regarding the accident occurred at Fukushima-Dai-ichi
Nuclear Power Station, TEPCO that the residents living in the area of 2km
radius from Unit 1 of the Nuclear Power Station must evacuate.(The
population of this area is 1,864)
21:23: Directives from Prime Minister to Governor of Fukushima, Mayor of
Ookuma and Mayor of Futaba were issued regarding the accident occurred
at Fukushima-Dai-ichi Nuclear Power Station, TEPCO, pursuant to
Paragraph 3, Article 15 of the Act for Special Measures Concerning Nuclear
Emergency Preparedness as follows:
-Residents living in the area of 3km radius from Unit 1 of the Nuclear Power
Station must evacuate.
-Residents living in the area of 10km radius from the Unit 1 must take
sheltering.
(March12)
5:22 Unit 1 of Fukushima Dai-ni notified NISA of the situation of the Article
15 of Act on Special Measures Concerning Nuclear Emergency
Preparedness.
Preparedness.
05:44 Residents living in the area of 10km radius from unit 1 of the Nuclear
Power Station must evacuate by the Prime Minister Direction.
06:07 Regarding Units 1,2 and 4 of Fukushima Dai-ni NPS, TEPCO reported
NISA in accordance with Article 15 of Act on Special Measures
Concerning Nuclear Emergency Preparedness.
6:50 According to the article 64, 3 of nuclear regulation act, government
order to control the internal pressure in Fukushima-daiichi unit
No. 1 and 2
7:45 Directives from Prime Minister to Governor of Fukushima, Mayors of
Hirono, Naraha, Tomioka, Ookuma and Futaba were issued
regarding the accident occurred at Fukushima-Dai-ni Nuclear
Power Station, TEPCO, pursuant to Paragraph 3, Article 15 of
the Act for Special Measures Concerning Nuclear Emergency
Preparedness as follows:
-Residents living in the area of 3km radius from
Fukushima-Dai-ni Nuclear Power Station must evacuate.
-Residents living in the area of 10km radius from
Fukushima-Daini NPS must take aheltering
17:00 Notification pursuant to Article 15 of the Act for Special Measure
Concerning Nuclear Emergency Preparedness since the radiation
level exceeded the acceptable level of Fukushima Dai-ichi
Nuclear Power Station.(NPS).
18:25 Prime Minister directed evacuation of the residents living within the
20km radius from the Fukushima Dai-ichi NPS
19:55 Directives from Prime Minister was issued regarding sea water
injection to Unit No.1 of Fukushima Dai-ichi NPS.
20:05 According to the article 64, 3 of nuclear regulation act and concerning
to directives from Prime Minister, government ordered to inject
sea water Unit No.1 of Fukushima Dai-ichi NPS.
Status of Residents Evacuation
(Information from the Resident Safety Team of OFC at 16:20 March 12 )
Resident Safety Team of ERC
Ookuma-cho Approx 3,500 in grasped number approx 4,000 residents
completed (refugee: Miyakoji junior high school)
Futaba-cho Approx 1,800 in grasped number approx 2,000 residents
completed (refugee: Kawamata elementary school)
Namie-cho Grasped number approx 17,000 residents completed (refugee:
Tsushima Kasseika Center, Tsushima branch)
Naraha-cho Grasped number approx 7,800 residents completed (refugee:
Kusano junior high school, Taira Dairoku elementary school)
Among these towns, public announcement are implemented by wireless
emergency preparedness radio waves and walk down is also done in these
some area.
Residents live in 10km radius
Vicinity of Fukushima
Daiichi
Vicinity of Fukushima Daini
0-10km 0-3km 0-10km
Tomioka-cho 14,808 Tomioka-cho 6,534 15,961
Ookuma-cho 11,363 Ookuma-cho - 7,127
Futaba-cho 7,243 Futaba-cho - 1,238
Namie-cho 17,793 Namie-cho 1,515 8,100
Total 51,207 Total 8,049 32,426
Some area of Fukushima-daiichi 10km area and Fukushima-daini 10 km
area are overlapped that cause duplication of resident number.
Tomioka-cho Approx 15,650 in grasped number approx 16,000 residents
completed (refugee: Kawachi village office)
Re: Japan - "Meltdown" and release of radioactive material at Fukushima Daiichi Nuclear Power Station Unit 1 (LEVEL 4 EVENT) - now Unit 3 possible "Meltdown"
The pdf news release posted by LaMenchos in post# 24 is primarily a status report of the utility situation in Japan. It does however contain a detailed time line of events at Fukushima Dai-ichi, Units 1 and 2.
Acknowledged. The releases are already in a separate thread.
Re: Japan - "Meltdown" and release of radioactive material at Fukushima Daiichi Nuclear Power Station Unit 1 (LEVEL 4 EVENT) - now Unit 3 possible "Meltdown"
machine translation -
"No. 3 or even nuclear hydrogen production"
15:00 42 mins 3 twitter tweet on May 13 (NHK-click and leave the site)
枝野 Chief Cabinet Secretary said in an interview at 3:30 pm on the Fukushima Daiichi Nuclear Power Station Unit 3, temporary, is expected to have occurred in the amount of hydrogen from the reactor no longer able to adequately cool the reactor As one of the No. 12 for the clear possibility that a hydrogen explosion in the reactor building. Secretary 枝野 the subject and the expansion of the shelter is not necessary to explain.
Re: Japan - "Meltdown" and release of radioactive material at Fukushima Daiichi Nuclear Power Station Unit 1 (LEVEL 4 EVENT) - now Unit 3 possible "Meltdown"
Please see this thread for another problem at a nuclear power plant:
Re: Japan - "Meltdown" and release of radioactive material at Fukushima Daiichi Nuclear Power Station Unit 1 (LEVEL 4 EVENT) - now Unit 3 possible "Meltdown"
Japan Earthquake Update (13 March 2011 13:35 CET)
Japanese authorities have informed the IAEA's Incident and Emergency Centre (IEC) that venting of the containment of reactor Unit 3 of the Fukushima Daiichi nuclear power plant started at 9:20 AM local Japan time of 13 March through a controlled release of vapour. The operation is intended to lower pressure inside the reactor containment.
Subsequently, following the failure of the high pressure injection system and other attempts of cooling the plant, injection of water first and sea water afterwards started. The authorities have informed the IAEA that accumulation of hydrogen is possible.
Japanese authorities have also informed the IAEA that the first (i.e., lowest) state of emergency at the Onagawa nuclear power plant has been reported by Tohoku Electric Power Company. The authorities have informed the IAEA that the three reactor units at the Onagawa nuclear power plant are under control.
As defined in Article 10 of Japan's Act on Special Measures Concerning Nuclear Emergency Preparedness, the alert was declared as a consequence of radioactivity readings exceeding allowed levels in the area surrounding the plant. Japanese authorities are investigating the source of radiation. The IAEA has offered its "Good Offices" to Japan to support the nation's response to the 11 March earthquake and tsunami. One IAEA capability intended to help member states during crises is the Response and Assistance Network (RANET). The network consists of nations that can offer specialized assistance after a radiation incident or emergency. Such assistance is coordinated by the IAEA within the framework of the Assistance Convention.
The IAEA continues to liaise with the Japanese authorities and is monitoring the situation as it evolves.
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