National Diet of Japan Fukushima Nuclear Accident Independent Investigation Commission or NAIIC is the commission to investigate the background and cause of Fukushima Daiichi nuclear disaster formed by the statutory law enactment by Diet of Japan on 7 October 2011 and started with the first commissioning meeting was held in Fukushima City, Fukushima Prefecture. The commission is scheduled to issue the report in six months on investigation and to propose the policy to reduce and prevent future accident and reduce damage on the nuclear power plant in Japan. [1] [2]
The Fukushima nuclear accident "cannot be regarded as a natural disaster," the NAIIC panel's chairman, Tokyo University professor emeritus Kiyoshi Kurokawa, wrote in the inquiry report. "It was a profoundly man-made disaster -- that could and should have been foreseen and prevented. And its effects could have been mitigated by a more effective human response." [3] "Governments, regulatory authorities and Tokyo Electric Power [TEPCO] lacked a sense of responsibility to protect people's lives and society," the Diet's Fukushima Nuclear Accident Independent Investigation Commission said. "They effectively betrayed the nation's right to be safe from nuclear accidents. [4]
In addition, the Commission recognized that the affected residents are still struggling and facing grave concerns, including the "health effects of radiation exposure, displacement, the dissolution of families, disruption of their lives and lifestyles and the contamination of vast areas of the environment". The decontamination and restoration activities, essential for rebuilding communities, will continue into the long term.
The joint committee of House of Representatives of Japan and House of Councillors enact the statutory law as the legislature for investigation committee or commission which is the different from investigate committee formed by Japanese government. The commission interrogate regard people, the management of Tokyo Electric Power Company and the responsible members of Cabinet of Japan up to Prime Minister of Japan when the accident had happened. The commission also heard the opinion and conditions before and after accident from people suffered by Ionizing radiation and evacuation. The commission is fully open to the public through Website, Ustream and Nico Nico Douga in live with Twitter and archive manner by Internet. Video streaming of the commission session is available in English language interpretation simultaneously in live and archive.
On July 5, 2012, the National Diet of Japan Fukushima Nuclear Accident Independent Investigation Commission released an executive summary report [5] of The Fukushima Nuclear Accident. The report "blames Japanese culture for the fundamental causes of the disaster." [6] [7] [8] [9] The panel is due to deliver its final report at the end of July. [6]
The joint committee of diet appointed membership.
The nuclear incident "cannot be regarded as a natural disaster," the NAIIC panel's chairman, Tokyo University professor emeritus Kiyoshi Kurokawa, wrote in the inquiry report. "It was a profoundly man-made disaster -- that could and should have been foreseen and prevented. And its effects could have been mitigated by a more effective human response." [3] "Governments, regulatory authorities and Tokyo Electric Power [TEPCO] lacked a sense of responsibility to protect people's lives and society," the Diet's Fukushima Nuclear Accident Independent Investigation Commission said. "They effectively betrayed the nation's right to be safe from nuclear accidents. Therefore, we conclude that the accident was clearly 'man-made'," it said. [4]
The nuclear incident was the result of poor earthquake-safety planning and faulty post-tsunami communication. [10] As a result of collusion between the facility's operator Tokyo Electric Power Co. (TEPCO), regulators and the Japanese government the nuclear crisis at the Fukushima Daiichi power plant unfolded as a "man-made disaster". [6] The report attributed the cause of the failings to Japan's culture of "reflexive obedience", noted that there was no separation between atomic regulation and promotion and described a Japan in which nuclear power became "an unstoppable force, immune to scrutiny by civil society." [6] TEPCO, regulators and the government "failed to correctly develop the most basic safety requirements -- such as assessing the probability of damage, preparing for containing collateral damage from such a disaster, and developing evacuation plans," the NAIIC said. According to the report the lack of training and knowledge of the TEPCO workers at the facility reduced the effectiveness of the response to the situation at a critical time following the quake and tsunami. As the crisis escalated, TEPCO, the regulators, government agencies and the prime minister's office were ineffective in "preventing or limiting the consequential damage" at Fukushima Daiichi. [6]
"According to this commission's study, on March 11, it is believed that the Fukushima Daiichi nuclear power plant was in a vulnerable condition with no guarantee it could withstand earthquakes and tsunamis," the report said. [4] The government and plant operator TEPCO have been unwilling to say the reactors could have been damaged by the initial earthquake. [4] An earlier report by TEPCO had all but cleared the huge utility, saying the size of the earthquake and tsunami was beyond all expectations and could not reasonably have been foreseen. But the report of the commission said: "Despite having a number of opportunities to take measures, regulatory agencies and TEPCO management deliberately postponed decisions, did not take action or took decisions that were convenient for themselves." [4] It also said that had the company had its way, its staff would have been evacuated from the crippled plant and the catastrophe could have spiralled even further out of control. [4]
According to the New York Times the report criticized Tepco as being too quick to dismiss earthquake damage as a cause of the fuel meltdowns at three of the plant's six reactors, which overheated when the site lost power. Tepco has contended that the plant withstood the earthquake that rocked eastern Japan, instead placing blame for the disaster on what some experts have called a “once in a millennium” tsunami that followed. Such a rare calamity was beyond the scope of contingency planning, Tepco executives have suggested, and was unlikely to pose a threat to Japan's other nuclear reactors in the foreseeable future. [7] The parliamentary report suggests according to the New York Times that Reactor No. 1, in particular, might have suffered earthquake damage, including the possibility that pipes burst from the shaking, leading to a loss of coolant even before the tsunami hit the plant about 30 minutes after the initial earthquake. The report emphasized that a full assessment would require better access to the inner workings of the reactors, which may not be possible for years. [7] “However,” the report said, “it is impossible to limit the direct cause of the accident to the tsunami without substantive evidence. The commission believes that this is an attempt to avoid responsibility by putting all the blame on the unexpected (the tsunami),” the report continued, adding, “and not on the more foreseeable quake.” [7]
The commission accused the Japanese government, Tepco and nuclear regulators of failing to carry out basic safety measures despite being aware of the risks posed by earthquakes, tsunamis and other events that might cut off power systems. Even though the government-appointed Nuclear Safety Commission revised earthquake resistance standards in 2006 and ordered nuclear operators around the country to inspect their reactors, for example, Tepco did not carry out any checks, and regulators did not follow up, the report said. Tepco “manipulated its cozy relationship with regulators to take the teeth out of regulations,” the report said. [7]
Nuclear power plants should have been made more quake-proof, but Japan's nuclear bloc, while reassuring the nation about its safe atomic plants, ignored safeguards that would have helped strengthen the Fukushima facility against a massive, but foreseeable earthquake. [10] The Nuclear and Industrial Safety Agency (NISA) did not press Tepco to prepare for a so-called full station blackout — the loss of main and backup power — because the “probability was small.” NISA instead asked Tepco to explain why new prevention measures would not be necessary. [10] Regulators and nuclear operators went to painstaking lengths to ignore safety risks at the plant or cover them up. [10] They disregarded earlier warnings from outside watchdog groups that earthquakes posed a significant safety risk to the nuclear plants, and by doing so they “effectively betrayed the nation’s right to be safe from nuclear accidents.” [10] The report said "it is considered that TEPCO management knew about delays in anti-quake works and postponement of tsunami measures and were aware that the Fukushima Daiichi was vulnerable". TEPCO also failed to act promptly, the panel concluded, but added: "This should not be attributed to individuals … at the plant but the structural problems of TEPCO." [11] The NAIIC blamed lax safety measures on what it called the country's powerful and “collusive” decision-makers and on a conformist culture that allowed them to operate with little scrutiny. [10] “What must be admitted — very painfully — is that this was a disaster ‘Made in Japan,’” investigation chairman Kiyoshi Kurokawa wrote in the introduction to the report. “Its fundamental causes are to be found in the ingrained conventions of Japanese culture: our reflexive obedience; our reluctance to question authority; our devotion to ‘sticking with the program’; our groupism; and our insularity.” [10]
Chain of command were disrupted amid the crisis which created confusion, while communication failures about critical decisions undermined trust between the different parties. [6] The prime minister’s office waited too long to declare a state of emergency. TEPCO’s disaster-response manuals were out of date, missed key diagrams, while TEPCO was too slow to relay information to the government. [10] The administration of then prime minister Naoto Kan hampered operations as the disaster unfolded, the report said, and did not use a logical chain of command. "The prime minister's office was supposed to contact the plant operator through an on-the-spot task force. But … issued direct instructions to TEPCO head office and the accident site, confusing the command line." [11] Then-Prime Minister Naoto Kan traveled to the plant mid-meltdown and “diverted the attention and time of the on-site operational staff and confused the line of command,” the report said. “Had the head office of Tepco actively communicated the on-site situation from the start, and explained the severity of the situation to the other parties,” the report said, “there is a possibility that the distrust — and the confusion in the chain of command that followed — could have been prevented.” [10]
The NAIIC made a series of recommendations to try to avoid a repeat of the catastrophe. Japan needs to overhaul its nuclear regulation system by creating an independent watchdog, because the nuclear safety agency was a part of the same government ministry that promoted nuclear power. [10] The commission recommended that the Diet establish a permanent, parliamentary oversight panel to deal with nuclear power and supervise regulators and to ensure that the government and utilities carry out the necessary measures to prevent any recurrence of the Fukushima disaster. [6] [12] A "fundamental re-examination of the crisis management system" was suggested. The report also called for measures tackling public health and welfare issues, including the establishment of a system "to deal with long-term public health effects," monitoring "hot spots" and "the spread of radioactive contamination", and for starting "a detailed and transparent program of decontamination and relocation." In addition a system of independent investigation commissions dealing with nuclear issues should be developed. [6] [13] The findings published by NAIIC call for further investigation of the impact of the 9.0 magnitude earthquake - as opposed to the towering tsunami - on the reactors at Fukushima. [11] The report also urged the government to set clear disclosure rules about its relationship with nuclear operators. [8] Suggesting that the mind-set that supported the negligence at Fukushima "can be found across Japan," Kurokawa also urged citizens to "reflect on our responsibility as individuals in a democratic society." [6]
The BBC summarised the recommendations of the NAICC as follows: [14]
Tokyo Electric Power Company Holdings, Incorporated is a Japanese electric utility holding company servicing Japan's Kantō region, Yamanashi Prefecture, and the eastern portion of Shizuoka Prefecture. This area includes Tokyo. Its headquarters are located in Uchisaiwaicho, Chiyoda, Tokyo, and international branch offices exist in Washington, D.C., and London. It is a founding member of strategic consortiums related to energy innovation and research; such as JINED, INCJ and MAI.
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The Fukushima Daiichi Nuclear Power Plant is a disabled nuclear power plant located on a 3.5-square-kilometre (860-acre) site in the towns of Ōkuma and Futaba in Fukushima Prefecture, Japan. The plant suffered major damage from the magnitude 9.1 earthquake and tsunami that hit Japan on March 11, 2011. The chain of events caused radiation leaks and permanently damaged several of its reactors, making them impossible to restart. The working reactors were not restarted after the events.
The Fukushima Daini Nuclear Power Plant Genshiryoku Hatsudensho, Fukushima II NPP, 2F) is a nuclear power plant located on a 150 ha (370-acre) site in the town of Naraha and Tomioka in the Futaba District of Fukushima Prefecture, Japan. The Tokyo Electric Power Company (TEPCO) runs the plant.
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Japan's Nuclear Safety Commission was a commission established within the Cabinet of Japan as an independent agency to play the main role in nuclear safety administration. Commissioners are appointed by the Prime Minister of Japan on Diet approval. The commission has stronger authority than any other ordinary advisory committees, in that the commission can make recommendations to relevant agencies in the name of the prime minister if it is necessary.
The Fukushima nuclear accident was a major nuclear accident at the Fukushima Daiichi nuclear power plant in Ōkuma, Fukushima, Japan which began on March 11, 2011. The proximate cause of the accident was the 2011 Tōhoku earthquake and tsunami, which resulted in electrical grid failure and damaged nearly all of the power plant's backup energy sources. The subsequent inability to sufficiently cool reactors after shutdown compromised containment and resulted in the release of radioactive contaminants into the surrounding environment. The accident was rated seven on the INES by NISA, following a report by the JNES.
Fukushima Daiichi is a multi-reactor nuclear power site in the Fukushima Prefecture of Japan. A nuclear disaster occurred there after a 9.0 magnitude earthquake and subsequent tsunami on 11 March 2011. The earthquake triggered a scram shut down of the three active reactors, and the ensuing tsunami crippled the site, stopped the backup diesel generators, and caused a station blackout. The subsequent lack of cooling led to explosions and meltdowns, with problems at three of the six reactors and in one of the six spent-fuel pools.
The Japanese reaction occurred after the Fukushima Daiichi nuclear disaster, following the 2011 Tōhoku earthquake and tsunami. A nuclear emergency was declared by the government of Japan on 11 March. Later Prime Minister Naoto Kan issued instructions that people within a 20 km (12 mi) zone around the Fukushima Daiichi nuclear plant must leave, and urged that those living between 20 km and 30 km from the site to stay indoors. The latter groups were also urged to evacuate on 25 March.
Masao Yoshida was a nuclear engineer who served as plant manager of the Tokyo Electric Power Company Fukushima Daiichi Nuclear Power Plant during the Fukushima nuclear disaster.
When the Fukushima Daiichi nuclear disaster began on 11 March 2011, reactor unit 4, 5 and 6 were all shut down. An explosion damaged unit 4 four days after the 2011 Tōhoku earthquake and tsunami. Damages from the earthquake and tsunami on unit 5 and 6 are relatively minor.
The Fukushima disaster cleanup is an ongoing attempt to limit radioactive contamination from the three nuclear reactors involved in the Fukushima Daiichi nuclear disaster that followed the earthquake and tsunami on 11 March 2011. The affected reactors were adjacent to one another and accident management was made much more difficult because of the number of simultaneous hazards concentrated in a small area. Failure of emergency power following the tsunami resulted in loss of coolant from each reactor, hydrogen explosions damaging the reactor buildings, and water draining from open-air spent fuel pools. Plant workers were put in the position of trying to cope simultaneously with core meltdowns at three reactors and exposed fuel pools at three units.
The Investigation Committee on the Accident at the Fukushima Nuclear Power Stations of Tokyo Electric Power Company was formed June 7, 2011 by the Japanese government as an independent body to investigate the March Fukushima Daiichi nuclear disaster. The Investigation Committee issued an interim report in December 2011, and issued its final report in July 2012.
Long one of the world's most committed promoters of civilian nuclear power, Japan's nuclear industry was not hit as hard by the effects of the 1979 Three Mile Island accident (USA) or the 1986 Chernobyl disaster (USSR) as some other countries. Construction of new plants continued to be strong through the 1980s and into the 1990s. However, starting in the mid-1990s there were several nuclear related accidents and cover-ups in Japan that eroded public perception of the industry, resulting in protests and resistance to new plants. These accidents included the Tokaimura nuclear accident, the Mihama steam explosion, cover-ups after accidents at the Monju reactor, and the 21 month shut down of the Kashiwazaki-Kariwa Nuclear Power Plant following an earthquake in 2007. Because of these events, Japan's nuclear industry has been scrutinized by the general public of the country.
The Fukushima Daiichi reactor, was 1 out of 4 reactors seriously affected during the Fukushima Daiichi nuclear disaster on 11 March 2011. Overall, the plant had 6 separate boiling water reactors originally designed by General Electric (GE), and maintained by the Tokyo Electric Power Company (TEPCO). At the time of the earthquake, Reactor 4 had been de-fueled while 5 and 6 were in cold shutdown for planned maintenance.
The Fukushima Daiichi reactor, was 1 out of 4 reactors seriously affected during the Fukushima Daiichi nuclear disaster on 11 March 2011. Overall, the plant had 6 separate boiling water reactors originally designed by General Electric (GE), and maintained by the Tokyo Electric Power Company (TEPCO). At the time of the earthquake, Reactor 4 had been de-fueled while 5 and 6 were in cold shutdown for planned maintenance. Unit 1 was immediately shut down automatically after the earthquake, and emergency generators came online to control electronics and coolant systems. However, the tsunami following the earthquake quickly flooded the low-lying rooms in which the emergency generators were housed. The flooded generators failed, cutting power to the critical pumps that must continuously circulate coolant water through the reactor core. While the government tried pumping fresh water into the core, it was already too late due to overheat. In the hours and days that followed, Unit 1 experienced a full meltdown.
Unit 3 of the Fukushima Daiichi Nuclear Power Plant was one of the reactors in operation on 11 March 2011, when the plant was struck by the tsunami produced by the Tohoku earthquake. In the aftermath, the reactor experienced hydrogen gas explosions and suffered a partial meltdown, along with the other two reactors in operation at the time the tsunami struck, unit 1 and unit 2. Efforts to remove debris and coolant water contaminated with radiation are ongoing and expected to last several decades.
The Fukushima Daiichi nuclear accident genshiryoku hatsudensho jiko) was a series of equipment failures, nuclear meltdowns, and releases of radioactive materials at the Fukushima I Nuclear Power Plant, following the Tōhoku earthquake and tsunami on 11 March 2011. It was the largest nuclear disaster since the Chernobyl disaster of 1986, and the radiation released exceeded official safety guidelines. Despite this, there were no deaths caused by acute radiation syndrome. Given the uncertain health effects of low-dose radiation, cancer deaths cannot be ruled out. However, studies by the World Health Organization and Tokyo University have shown that no discernible increase in the rate of cancer deaths is expected. Predicted future cancer deaths due to accumulated radiation exposures in the population living near Fukushima have ranged in the academic literature from none to hundreds.
Investigations into the Fukushima Daiichi Nuclear Disaster (or Accident) began on 11 March 2011 when a series of equipment failures, core melt and down, and releases of radioactive materials occurred at the Fukushima Daiichi Nuclear Power Station from the 2011 off the Pacific coast of Tohoku Earthquake and tsunami on the same day.
The Fukushima Daiichi nuclear disaster genshiryoku hatsudensho jiko) was a series of equipment failures, nuclear meltdowns, and releases of radioactive materials at the Fukushima I Nuclear Power Plant, following the Tōhoku earthquake and tsunami on 11 March 2011. It is the largest nuclear disaster since the Chernobyl disaster of 1986.