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Fukushima Unit 2 Muon Scan Not So Conclusive

Fukushima Unit 2 Muon Scan Not So Conclusive

TEPCO and IRID released a set of reports on the muon scan of unit 2. This is a follow up report to the preliminary scan results in June. A claim is made in the new report that the majority of the melted fuel is in the bottom of the reactor pressure vessel but this claim is questionable upon our further review of the reports. You can find our previous reporting on the unit 2 muon scans … Read entire article »

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Pokemon Spotted At Fukushima Daiichi

Pokemon Spotted At Fukushima Daiichi

TEPCO has reported Pokemon have been spotted on the grounds of Fukushima Daiichi. They did not specify what ones were found on site so it remains a mystery if they would be worth catching. The company has asked Niantic to remove the creatures in the game from the disaster site to deter would be Pokemon trainers from showing up on site. They have also asked workers at the disaster site to refrain from playing the … Read entire article »

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Japan’s Business Lobby Bails On Nuclear

Japan’s Business Lobby Bails On Nuclear

We have tracked this issue since 2011, but this is an unexpected turn. Japan’s business lobby(Keidanren) has been loudly pushing nuclear power. Now Reuters is reporting that another influential business lobby, the Japan Association of Corporate Executives is pushing for changes to Japan’s energy policy. They want the government to shift to more renewables and away from nuclear power. “We have a sense of crisis that Japan will become a laughing stock if we do not … Read entire article »

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What Windscale Can Tell About The Future Of Fukushima Daiichi

What Windscale Can Tell About The Future Of Fukushima Daiichi

The decommissioning authority managing the long term response to the Fukushima Daiichi disaster site has cited three previous nuclear disasters as sources of information for planning their efforts. Three Mile Island, Chernobyl and Windscale. The Windscale reactor was a graphite pile weapons material reactor using highly enriched uranium unlike Fukushima Daiichi’s units that are all boiling water power reactors using low enriched uranium. Yet some of the challenges at Windscale show where technology is at currently … Read entire article »

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Radioactive “Glass” Found In Lungs Of Fukushima Workers

Radioactive “Glass” Found In Lungs Of Fukushima Workers

A study published in March of 2016 found insoluble cesium lodged in the lungs of some of the highly exposed Fukushima disaster response workers. This group of seven workers who had exposures from the initial disaster that were over 250 mSv were monitored by Japan’s National Institute of Radiological Sciences (NIRS). They found that most of the workers cesium 134 and 137 declined at an expected rate due to radioactive decay and biological half life where … Read entire article »

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NRA Tells TEPCO To Reduce Radioactive Water In Reactor Buildings At Fukushima

NRA Tells TEPCO To Reduce Radioactive Water In Reactor Buildings At Fukushima

NRA has instructed TEPCO to deal with the radioactive water in the reactor building basements at Fukushima Daiichi. The request included reducing the radioactive contamination in the water and also the volume. The addition of more holding tanks was included in the request. NRA appears to be concerned with contaminated water leaking out of the reactor buildings or being flushed out by a tsunami at the plant. Current ground water levels around the reactor buildings had trended … Read entire article »

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Melted Fuel To Be Sampled From Fukushima Reactors Containment

Melted Fuel To Be Sampled From Fukushima Reactors Containment

A contract announcement confirms new plans for the melted reactors at Fukushima Daiichi. Efforts are underway to develop the equipment needed to retrieve corium (melted fuel) samples from inside the containment structures of units 1-3 at the plant. No solid time frame was mentioned. UK based James Fisher Nuclear secured the contract to build the retrieval equipment with Mitsubishi Heavy Industries (MHI). MHI has developed a number of the larger robot platforms used for various work … Read entire article »

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NDF Tries To Walk Back Fukushima Daiichi Sarcophagus Admission

NDF Tries To Walk Back Fukushima Daiichi Sarcophagus Admission

After news inadvertently leaked via NHK that the decommissioning authority (NDF) for Fukushima Daiichi was considering a Chernobyl type sarcophagus for the plant, there is now an effort by the authority to walk that back. Mayors for the impacted towns near the plant expressed obvious outrage to the media after hearing the news. This apparently caused NDF to try to do some damage control. They did confirm that this isn’t a done deal, but is an … Read entire article »

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Fukushima Daiichi Decommissioning Takes A Horrible Turn

Fukushima Daiichi Decommissioning Takes A Horrible Turn

NHK reports that the decommissioning authority in charge of dealing with the aftermath of the Fukushima disaster is now considering a sarcophagus to entomb the failed reactors rather than attempting to remove the melted fuel, debris and buildings. The authority told NHK they would still consider the two fuel removal techniques but they are adding the sarcophagus option to the list. They did not elaborate about why it is now being officially added to the considered … Read entire article »

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Fukushima Radioactive Glass Microparticles In Tokyo Confirm Other Findings

Fukushima Radioactive Glass Microparticles In Tokyo Confirm Other Findings

A new report out of a geochemistry conference in Japan gives new insight into previous research on the meltdowns at Fukushima Daiichi. Researchers collected samples from around Tokyo for analysis. These samples consisted of air filters collected on March 15, 2011. One of the significant findings is that these microparticles were produced during the reaction when the melted fuel came in contact with the concrete in the reactor containment structure. This stage is well after the meltdown … Read entire article »

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Fukushima Daiichi Manga To Be Available In English

Fukushima Daiichi Manga To Be Available In English

The Fukushima Daiichi Manga released a few years ago will be made available in English in 2017. Advance purchase is available through Amazon and an English chapter is available on the publisher’s facebook. The series depicts life as a disaster response worker at the plant by a worker who is also a manga artist. This article would not be possible without the extensive efforts of the SimplyInfo research team Join the conversation at chat.simplyinfo.org © 2011-2016 SimplyInfo.org, Fukuleaks.org All … Read entire article »

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Fukushima Rice To Be Sold In London

Fukushima Rice To Be Sold In London

Fukushima rice will be available for sale in the UK starting in July. It will also be supplied to some restaurants in the city. News reports gloss over the radiation risks. Foods tested in Japan only have to meet the 100 bq/kg for cesium 137/134 in order to be sold. Any food products below that threshold are considered legal to sell. This is an intervention limit. It is not a guarantee of “safety”. This system allows … Read entire article »

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Fukushima Frozen Wall Report For June 23 2016

Fukushima Frozen Wall Report For June 23 2016

Another update to the frozen wall was released. The new report shows some minor changes. The unit 1 section continues to slowly freeze. The land side freeze points show to be below zero but thermal maps show little progress. The south section by unit 4 at monitoring point 14 continues to not freeze and is above zero. Below is unit 1 sea side section stated 6.21   Previous reporting for the same section dated 6.14: This article would not … Read entire article »

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Fukushima Frozen Wall Progress Report – June 22

Fukushima Frozen Wall Progress Report – June 22

TEPCO injected cement near parts of section 1 of the frozen wall on June 8. South sections of the frozen wall near unit 4 are still struggling to freeze. TEPCO has not announced a specific response plan. The sections near unit 1 appear to have been where the cement was injected but it is not clear if it has had a direct impact on this section. This section has seen some improvement over previous reports. Many of the … Read entire article »

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TEPCO Admits To Cover Up Of Meltdowns At Fukushima Daiichi

TEPCO Admits To Cover Up Of Meltdowns At Fukushima Daiichi

“I would say it was a cover-up,” Hirose told a news conference. “It’s extremely regrettable.” TEPCO put out a press release today admitting to the purposeful cover up of the meltdowns at Fukushima Daiichi. The press release made no further attempts to pin this on government officials, something those in charge at the time vehemently deny. Hirose, TEPCO’s current president was not in charge at the time and admitted it was a cover up at the press … Read entire article »

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Fukushima Scandal; What IS A Meltdown?

Fukushima Scandal; What IS A Meltdown?

The recent TEPCO investigation into events during the early phase of the Fukushima Disaster raised a few questions. TEPCO claims they were told by the Prime Minister’s office not to use the word “meltdown”, something the former Prime Minister denies. A TEPCO official was stopped from uttering the word at a press conference and NISA staff were sacked for mentioning a meltdown to the press. Yet TEPCO is insisting they didn’t hide anything because they provided … Read entire article »

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TEPCO Tries To Shift Blame For Hiding Meltdowns

TEPCO Tries To Shift Blame For Hiding Meltdowns

The 3rd party investigation prompted by Niigata prefecture concluded that TEPCO’s president instructed company officials to not mention the word melt down. Others from TEPCO tried to claim that the Prime Minister’s office requested not using the word. A TEPCO representative (Mr. Muto) apparently almost used the word in an early press conference and was stopped by another employee who showed him a memo. The investigators claimed that the employee said the Prime Minister’s office requested … Read entire article »

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Fukushima Frozen Wall Progress And Failures

Fukushima Frozen Wall Progress And Failures

The frozen wall at Fukushima Daiichi has seen some minor progress amid ongoing problems with freezing portions of the wall. The diagram of the section near unit 1 below shows slight improvement in freezing in the problematic area. The small sections that had been red on previous diagrams still shows as red but more of the general area has gotten colder. June 7th May 31st   Even with this progress TEPCO has opted to inject cement near the seaside … Read entire article »

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Fukushima Unit 2 Muon Scan Shows No Fuel In Reactor

Fukushima Unit 2 Muon Scan Shows No Fuel In Reactor

TEPCO released preliminary information from the second muon scan of unit 2 at Fukushima Daiichi. This scan finds no fuel in the reactor vessel. The scanner can detect masses of fuel 1 meter or larger. The full scan will be completed by mid-July and should further confirm any fuel findings, or lack thereof. The scans did identify the fuel in the spent fuel pool, this helps confirm that the system is working properly and that the … Read entire article »

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Highly Radioactive Fukushima Town Reopens

Highly Radioactive Fukushima Town Reopens

The town of Katsurao currently has radiation levels of 20-50 mSv/year, with some areas above the 50 mSv/year level. 20 mSv/year is the annual maximum exposure for nuclear workers in most countries. The Japanese government has decided to reopen the town, allowing residents to live there. This declaration also serves to remove a protection for evacuees who receive compensation payments. Without the restriction many may lose their payments, compelling them to return to this highly radioactive … Read entire article »

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Fukushima Soil Road Reuse Plan Ignores Significant Risks

Fukushima Soil Road Reuse Plan Ignores Significant Risks

The government plan would take any contaminated soil under the 8000 bq/kg hazardous waste limit and use it to build roads. Jiji calls this level “relatively low” but the levels of 5000-8000 bq/kg are anything but. One of the systemic problems with the radioactive contamination monitoring processes in Japan is that most standards and almost all of the monitoring is strictly for gamma radiation. This ignores any beta or alpha emitting radioactive contamination in the soil … Read entire article »

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Govt. To Allow Two Fukushima Fish Species To Be Sold

Govt. To Allow Two Fukushima Fish Species To Be Sold

A sale ban has been lifted for Fukushima caught flounder and conger fish. These two species along with many others had been banned from sale since the 2011 disaster. To date 18 fish species have been approved for sale from Fukushima prefecture. Image Credit | true-wildlife.blogspot.com This article would not be possible without the extensive efforts of the SimplyInfo research team Join the conversation at chat.simplyinfo.org © 2011-2016 SimplyInfo.org, Fukuleaks.org All Rights Reserved Content cited, quoted etc. from other sources … Read entire article »

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Zeolite Fibers Found Effective In Removing Cesium 137 From Fukushima Rivers

Zeolite Fibers Found Effective In Removing Cesium 137 From Fukushima Rivers

A new study by researchers in Japan found that zeolite-polymer fiber materials were effective in filtering out low levels of cesium 137 from rivers in Fukushima near the disaster site. This shows that some easy to implement solutions could remove diluted cesium 137 from the environment, preventing it from flowing downstream or otherwise continuing to impact the environment, food supply and human exposure levels. The study can be found here. This article would not be possible without … Read entire article »

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TEPCO Begins Small Debris Removal On Fukushima Unit 1

TEPCO Begins Small Debris Removal On Fukushima Unit 1

NHK announced late last week that TEPCO has begun removing small debris off the top of Fukushima unit 1 with a vacuum device. This debris removal would be the small debris that is on top of the collapsed roof layer. Once this is removed they will need to cut and remove the layer of collapsed roof materials before they move on to the larger debris beneath it. Each layer presents a new risk for contamination to … Read entire article »

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Possible Causes Of Fukushima Frozen Wall Failures

Possible Causes Of Fukushima Frozen Wall Failures

TEPCO reported last week that roughly 10% of the frozen wall is not working. Currently only certain sections are being actively frozen with other sections to possibly be frozen as they determine the cause and effect of the initial work. One of the sections being frozen with some problems is near unit 1 on the sea side. TEPCO claimed that accumulated groundwater and gravel in the area may be contributing to the problem. TEPCO also indicated … Read entire article »

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5 At TEPCO Home Office Knew Of Meltdown Manual

5 At TEPCO Home Office Knew Of Meltdown Manual

TEPCO admitted via Asahi Shimbun that 5 people at TEPCO’s home office in Tokyo knew of the meltdown manual as they were the workers tasked with maintaining it. TEPCO provided no further explanation as to why the manual still wasn’t used. These admissions come as Niigata prefecture has pressured TEPCO to disclose information about the disaster as part of their terms for considering the potential restart of the Kashiwazaki Kariwa nuclear plant. This article would not … Read entire article »

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TEPCO’s Two Tales About Fukushima Missing Melted Fuel

TEPCO’s Two Tales About Fukushima Missing Melted Fuel

Fukushima Daiichi decommissioning chief, Naohiro Masuda spoke with Australia ABC TV this week about where the melted fuel is. Masuda gave this explanation: “In Reactor 1, all of the fuel has melted down from inside the pressure vessel,” Mr Masuda said. “In reactors 2 and 3, about 30 per cent to 50 per cent remains in the pressure vessel and the rest has melted down. But unfortunately, we don’t know exactly where [the fuel] is.” This is what the … Read entire article »

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Fukushima Frozen Wall Appears To Make Progress

Fukushima Frozen Wall Appears To Make Progress

NHK reports that the frozen wall at Fukushima Daiichi is making progress. They cite that 80% of the 6000 monitoring points are showing temperatures below zero. TEPCO also released a report on the frozen wall progress today. It does appear to show significant progress. That doesn’t mean the project isn’t completely resolved. Sections of the sea side frozen wall are not seeing the temperature drops other portions are. TEPCO didn’t provide additional details about this. So … Read entire article »

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Fukushima Decontamination Company Employees Arrested For Murder

Fukushima Decontamination Company Employees Arrested For Murder

A decontamination worker went missing in the fall of 2015. A recent tip given to police implicated six workers for the decontamination company and indicated the body was buried at the construction company offices in Iwaki City. Police discovered the body yesterday and arrested the six workers that includes the president of the construction company on murder charges. Tokyo Reporter has been following the story. So far officials have not indicated what may have been the … Read entire article »

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TEPCO To Stop Fukushima Work During G-7 Summit

TEPCO To Stop Fukushima Work During G-7 Summit

TEPCO announced they will halt all decommissioning work at Fukushima Daiichi during the G-7 Summit. The summit will be held in Mie Prefecture, roughly 700 km from Fukushima Daiichi. So why the precaution? If there is work at the disaster site that is so dangerous it would potentially impact foreign dignitaries 700 km away, what kind of risk is the population of Japan under all the time? This is either an over reaction of TEPCO where they so … Read entire article »

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Fukushima Pacific Contamination Will Show Back Up In Japan 2-3 Years

Fukushima Pacific Contamination Will Show Back Up In Japan 2-3 Years

Oceanographer Michio Aoyama presented an estimate at an international conference recently showing that the cesium 137 contamination in the Pacific will begin to show back up in Japan. The releases from the initial disaster in 2011 are flowing with the strong ocean currents and are expected to begin showing back up in Japan in the next two to three years. He did not expect the levels to be severe but indicated they would show a detectable rise in … Read entire article »

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IRID Completes Full Scale Fukushima Torus Model

IRID Completes Full Scale Fukushima Torus Model

IRID has completed a full sized model of the torus (suppression chamber) based on the damaged reactors at Fukushima Daiichi. The model will be used to test various techniques to plug the torus and the related piping in a later attempt to flood the reactor containment vessels. This work is one attempt towards removing the melted fuel from the reactor containment. The photo (left) shows the size of the suppression chamber tube (torus) vs. the workers seen … Read entire article »

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Greenpeace Develops Innovative Way To See Radiation

Greenpeace Develops Innovative Way To See Radiation

Greenpeace has developed an innovative yet fairly simple way to visualize radiation. “We found our answer in a custom built LED light stick which, when connected to a Geiger counter, allows radiation levels to be measured and displayed in real-time. Take a long exposure photograph of a contaminated area and walk through it with this tool, and suddenly you have an undulating wall of light, exposing and visually mapping radiation in the environment.“ The result allows people to “see” … Read entire article »

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Fukushima Frozen Wall Not Solid, What You Need To Know

Fukushima Frozen Wall Not Solid, What You Need To Know

Last week TEPCO admitted that the frozen wall would not fully contain groundwater flowing through the plant. Original estimates of groundwater flowing through the plant were about 600 tons per day. The frozen wall will allow 50 tons per day to flow through the reactor block area. While this is a significant reduction, it isn’t water tight. This is the first time this has been disclosed to the public. Some reasons why it may not be water … Read entire article »

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Fukushima Workers Removing Tanks Receive High Radiation Exposures

Fukushima Workers Removing Tanks Receive High Radiation Exposures

Workers dismantling bolt together tanks at Fukushima Daiichi received high radiation doses to the eye during their work. TEPCO did not announce this finding, reporter Mako Oshidori questioned TEPCO officials at a recent press conference and obtained the admission. This began as an inquiry about workers found on a recent report to have over 75 mSv equivalent dose to their eye lens. This is a serious concern as radiation exposure to the eye can cause cataracts. … Read entire article »

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Sludge Solidification Technology Gets Trial Run At Fukushima Daiichi

Sludge Solidification Technology Gets Trial Run At Fukushima Daiichi

A geopolymer technology from UK company AMEC Foster Wheeler will have a trial run at Fukushima Daiichi to solidify radioactive sludge produced at the disaster site. The technology has already been in use at nuclear sites in Europe. The trial at Fukushima Daiichi is a partnership between Fuji Electric, JAEA and AMEC Foster Wheeler. This article would not be possible without the extensive efforts of the SimplyInfo research team Join the conversation at chat.simplyinfo.org © 2011-2016 SimplyInfo.org, Fukuleaks.org All … Read entire article »

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Fukushima Tritium Dumping Plan More Dangerous Than Advertised

Fukushima Tritium Dumping Plan More Dangerous Than Advertised

An Associated Press story made the rounds this week quoting various experts regarding potential tritium dumping at Fukushima Daiichi. Some of these expert statements are giving the public a misleading understanding of the situation and the risks. One statement by NRC head Shunichi Tanaka claimed that “Tritium is so weak in its radioactivity it won’t penetrate plastic wrapping,” This is a deceptive statement, though maybe not intentionally so by Tanaka. Tritium is a beta emitter and beta emitters are … Read entire article »

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Someone At TEPCO Knew The Meltdown Standard

Someone At TEPCO Knew The Meltdown Standard

Asahi Shimbun has reported that Yuichi Okamura, the senior director of nuclear power generation knew. In a recent press conference he said that it was his personal knowledge as to what was the meltdown standard. Mr. Okamura has worked in the industry for 20 years. He did not elaborate about TEPCO’s manuals or the knowledge of others. At the time of the disaster he was tasked with dealing with the spent fuel pool at unit 4.    This article … Read entire article »

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TEPCO Begins Installing Unit 3 Defueling Building

TEPCO Begins Installing Unit 3 Defueling Building

TEPCO began installing the first sections of the defueling building this week. The decking is the first portion of what will be a cover building to allow the removal of spent fuel from unit 3′s spent fuel pool. The defueling building is built in a modular fashion to allow for mostly remote assembly. The actual removal will also be done remotely due to the high radiation levels on unit 3′s remaining refueling floor level. Further details … Read entire article »

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Two New Leaks At Fukushima Daiichi

Two New Leaks At Fukushima Daiichi

Two new leaks happened at Fukushima Daiichi recently. Both were contained within the buildings where they happened. The first was a leak within one of the ALPS filtration buildings. A flange on a pipe containing highly radioactive water began to leak. Tightening of the bolts on the flange solved the leak. TEPCO states that the small amount of water remained within the spill containment weir.   A pipe in the new incinerator building leaked. This seemed unusual since the … Read entire article »

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