Tokyo, Saitama residents say ‘no’ to living near Fukushima soil
The flower bed in Shinjuku Gyoen National Garden where decontaminated soil from Fukushima Prefecture will be reused
February 25, 2023
Residents of Tokyo and Saitama are up in arms at an Environment Ministry plan to reuse decontaminated soil from Fukushima Prefecture in their midst, including a major park in the capital’s Shinjuku district.
They formally submitted requests on Feb. 24 asking to suspend the plan to distribute the soil that was formerly contaminated from radioactive fallout due to the 2011 triple meltdown at the Fukushima No. 1 nuclear power plant.
The plan, announced in December, is aimed at reducing the volume that would go to the final storage site.
One potential test site is Shinjuku Gyoen National Garden in the heart of Tokyo.
At a meeting on Feb. 24 between about 50 local residents and Environment Ministry officials, a request was submitted asking to cancel the plan as well as holding explanatory meetings about the project.
After the meeting, one of the residents, Kunikazu Hirai, 70, said, “We are angry at the danger of having soil that was once contaminated with radiation brought right next door to us.”
According to Environment Ministry officials, there were about 1.2 million visitors to Shinjuku Gyoen National Garden in fiscal 2021, although annual visitors numbered about 2 million prior to the novel coronavirus pandemic.
The two other candidate test sites are the National Institute for Environmental Studies in Tsukuba, Ibaraki Prefecture, and the National Environmental Research and Training Institute in Tokorozawa, Saitama Prefecture.
All three sites are managed by the Environment Ministry and officials believe that consent of local residents is not needed to proceed with their plan.
However, Saitama residents not only attended the Feb. 24 meeting with Environment Ministry officials but also submitted their own request to stop the project.
The unpopularity of the plan is understandable. A proposal to reuse soil in two municipalities in Fukushima Prefecture went nowhere after local residents raised strong opposition.
Only soil decontaminated to levels below 8,000 becquerels per kilogram will be used in the trial runs.
The plan for Tokyo calls for reusing the soil in a flower bed in an area of Shinjuku Gyoen National Garden that would be off-limits to the public. The flower bed would be 10 meters by 3 meters with a hole dug 1 meter deep.
A plastic sheet will be placed in the hole before about six cubic meters of decontaminated soil covers it. A 50-centimeter layer of soil will be placed on top of the decontaminated soil.
The water collected in the sheet will be moved to an adjacent tank and measured for radiation levels. If the levels are under government standards, the water would be released into the sewage system.
The Environment Ministry held an explanatory meeting on Dec. 21, but only 28 people showed up, in large part, because notification of the scheduled meeting was given at the last minute.
Shinjuku Mayor Kenichi Yoshizumi said while the project was completely in the hands of the central government, he expressed dissatisfaction at the explanation and documents presented by the Environment Ministry, which he called “difficult to understand.”
Tokorozawa residents raised objections at an explanatory meeting held in their community in January, and Mayor Masato Fujimoto said it would be difficult for the project to proceed if residents were opposed.
Kenichi Oshima, a professor of environmental economics at Ryukoku University in Kyoto, said the ministry likely wanted to conduct the trial in Tokyo to attract more attention and gain understanding.
But he added, “What has to be paid attention to is not to create a dispute between various regions by having the central government pressuring localities with comments such as, ‘Are you saying you will not cooperate to help Fukushima Prefecture?’”
Recycling decontaminated soil from the nuclear power plant accident is “no one’s business” Residents of Shinjuku, which has an unexpected connection with TEPCO, have stood up to stand up for the issue
Gen Hirai (second from right) and others protest the demonstration project to reuse decontaminated soil in Kabukicho, Tokyo, on December 12.
January 13, 2023
One month has passed since the announcement of a demonstration project to reuse so-called “decontaminated soil” collected during decontamination work after the accident at TEPCO’s Fukushima Daiichi Nuclear Power Plant in the Tokyo metropolitan area. People who live near Shinjuku Gyoen (Shinjuku-ku, Tokyo), one of the planned sites, have joined forces and established a group to oppose the reuse of the soil. Shinjuku has an unexpected connection with TEPCO. What do the locals think? Can other areas be left to their own devices? We took another look at the situation. (Takeshi Nakayama and Yoshiko Nakazawa)
◆No attempt has been made to reach a consensus among the residents.
The local people are trying to push the project forward without the knowledge of many of them,” said one angry writer.
Gen Hirai, 70, a writer, is angry. Gen Hirai, 70, is the chairman of the “Association Opposing the Introduction of Radioactively Contaminated Soil into Shinjuku Gyoen,” which lodged a complaint with the Shinjuku City government on March 12, claiming that there had been insufficient explanation of the demonstration project.
On September 9, the Ministry of the Environment announced a demonstration project using Shinjuku Gyoen as a candidate site. The project will use the flower beds behind the office building, which are normally closed to the general public, and plant them by covering them with decontaminated soil.
On the 21st, an explanatory meeting was held for residents of Shinjuku 1 and 2 chome facing the Gyoen. However, only 28 people attended the meeting, and Ms. Hirai, who lives in 1-chome, was unaware of it until she learned about it through the media.
It cannot be said that we are trying to build consensus among the residents of the city,” said Hirai. Mr. Hirai felt a growing sense of crisis and held a study session on the issue of decontaminated soil on the 28th. On the 7th of this month, he established a group to oppose the project with other ward residents.
◆University professors, lawyers, theater performers, and restaurant owners in the Golden district
Gen Hirai speaks about his proposal for a demonstration project to reuse decontaminated soil at the Shinjuku City Office in Kabukicho, Tokyo, on December 12.
During his visit to the Shinjuku City Office on January 12, Gen Hirai submitted a written request to the city officials to inform the residents of the demonstration project and to stop bringing decontaminated soil into the city unless its safety is guaranteed.
The 20 people who accompanied him were a diverse group, including not only local residents but also university professors, lawyers, theater people, and restaurant owners from the Golden Gaien district near the Gyoen. The participants questioned whether the law had been properly established for the reuse of decontaminated soil, and whether this would lead to the spread of contamination rather than alleviate the burden on Fukushima.
Although Shinjuku has a strong impression of an entertainment district such as Kabukicho, there are many condominiums in the Shinjuku Gyoen area, and some people have lived in the area for three generations. Mr. Hirai used to play in Shinjuku Gyoen when he was in elementary school, and even now he takes a walk there once every three days. Many kindergarteners also visit the park, and there is a promenade where many people come and go. Why are they trying to conduct a demonstration project in such a park?
◆Shinjuku Metropolitan High School, which has produced successive generations of TEPCO executives
Shinjuku is also characterized by its close ties to TEPCO.
Graduates of Shinjuku Metropolitan High School, located near the Gyoen Garden, have produced successive generations of TEPCO executives. According to the “Choyo Alumni Association,” a group of graduates, Tsunehisa Katsumata, who was chairman at the time of the Fukushima nuclear accident, and Naomi Hirose, who served as president after the accident, are among the names on the list. In addition, the TEPCO Hospital was located in Shinanomachi near the Gyoen until February 2014. I would like to ask Katsumata and others what they think about bringing (decontaminated soil) so close to their alma mater,” he said.
What stands out above all else is the Ministry of the Environment’s forward-looking attitude. This can be seen in a video shown at the briefing in Shinjuku, titled “Fukushima and the Environment Beyond. The video, “Fukushima and Beyond: Toward the Environment,” which was shown at the briefing in Shinjuku, also gives some indication.
The decontaminated soil is described as “an issue that remains in the land of Fukushima, which continues to recover. The video shows images of temporary storage sites in Fukushima Prefecture lined with flexible container bags filled with decontaminated soil, and asks the question, “Is this really a problem only in Fukushima? Is this really only a problem in Fukushima?
It seems as if he is trying to say that a demonstration project is needed to accept decontaminated soil outside of Fukushima Prefecture, but it is not clear that he is seriously trying to answer the questions of the local residents. The call center, which was listed in the briefing materials, is open only on weekdays, but the staff is curt: “We will use the ‘opinions’ we receive as reference in our future studies.
A park with a signboard showing underground storage of decontaminated soil in Funabashi City, Chiba Prefecture, in December 2022.
◆”Shinjuku City also believes what the government says.
Mr. Hirai said that the government seems to be leaving residents behind.
He points out that the Shinjuku City government is also accepting the government’s position that the decontaminated soil is safe, even though it cannot be scientifically proven that it is safe. The opposition group will hold an inaugural meeting on March 24, and will continue to raise the issue widely.
The demonstration project is currently announced for Shinjuku City and Tokorozawa City in Saitama Prefecture, and Tsukuba City in Ibaraki Prefecture is also being discussed, but the cleanup of decontaminated soil is not limited to these areas.
According to the Ministry of the Environment, decontaminated soil from Fukushima Prefecture will be collected at an interim storage facility near the Daiichi Nuclear Power Plant and then transported out of the prefecture for final disposal by 2045. As of the end of last year, about 13.38 million cubic meters of decontaminated soil had been collected. The company advocates the reuse of the soil to reduce the amount for final disposal and to make it easier to transport the soil out of the prefecture.
◆Decontaminated soil is becoming more and more familiar to people…
The problem is the radioactive concentration of the decontaminated soil to be reused.
According to the Ministry of Agriculture, Forestry and Fisheries, for about 50 years before the nuclear accident, the average radioactive concentration of farmland in Japan was about 20 becquerels per kilogram. On the other hand, the Ministry of the Environment has set a recycling standard for decontaminated soil of 8,000 becquerels or less, about 400 times higher. This is 80 times lower than the recycling standard of 100 becquerels or less for materials from decommissioned nuclear power plants.
Yayoi Isono, professor emeritus of environmental law at Tokyo Keizai University, commented, “Under these standards, a considerable amount of waste is reused. If soil with a low concentration of radioactive materials is mixed with the soil, it can be diluted to the standard level. If the amount of soil to be reused increases, the number of areas subject to reuse could also increase. If more soil is reused, the number of areas where it will be reused could increase.
Workers seal and bury soil contaminated with radioactive materials in Seya Ward, Yokohama, March 2012.
There are other troubling issues. As a result of the widespread release of radioactive materials from the Fukushima Daiichi Nuclear Power Plant, decontamination was widely implemented in the Tohoku and Tokyo metropolitan areas. Decontaminated soil is stored at a total of 29,000 locations in seven prefectures outside of Fukushima Prefecture, including Iwate, Ibaraki, Gunma, and Chiba. The Ministry of the Environment is urging measures such as sealing the soil in bags or containers, covering them with tarps to shield them from water, and covering them with fill.
However, the measures to be taken after storage differ between Fukushima Prefecture and other prefectures. The basic policy approved by the Cabinet in November 2011 stipulates that the government is responsible for securing interim storage facilities in prefectures where “a significant amount” of contaminated soil and other materials are generated. Fukushima Prefecture falls under this category, while other prefectures are to dispose of contaminated soil onsite.
◆Ministry of the Environment embarking on a demonstration project based on the idea that there is reuse of soil
However, municipalities outside of Fukushima Prefecture that have decontaminated soil are facing a complicated situation. Marumori Town in Miyagi Prefecture, which is storing decontaminated soil at 44 locations including schools, has approached the Ministry of the Environment, saying, “The government and TEPCO are responsible for transporting the soil out of the town for disposal.
An official from the town’s general affairs division said, “Some people in the town say, ‘It is not right that the people who dumped the waste did not clean it up, and that the people in the area where the waste was dumped are responsible for disposing of it. The government has not agreed to remove the waste from the town, but we are asking the government to do so, even if it means amending the law,” he said.
The cleanup of decontaminated soil cannot be a personal matter. However, the grounds for the cleanup methods are not clear, and in some cases, the methods are not clear.
Reuse of decontaminated soil within Fukushima Prefecture and on-site disposal of decontaminated soil outside of Fukushima Prefecture are merely policies approved by the Cabinet of the time. The question remains as to whether consensus building is sufficient. As for the final disposal of decontaminated soil in Fukushima Prefecture, the ministry official said, “We are currently discussing this at an experts’ meeting.
In spite of this situation, the Ministry of the Environment is embarking on a demonstration project with the idea that the soil can be reused.
Journalist Junko Masano criticized the Ministry, saying, “There is little legal basis for reusing the soil, and the push to do so is ridiculous. If the land is actually to be reused for road construction and other purposes, it will be necessary to verify protective measures.
The aforementioned Mr. Isono also commented, “The response to the Fukushima accident will be the foundation for the future. We should have careful discussions on whether we should reuse the waste in the first place and, if so, how we should proceed.
◆Desk Memo
Radioactive contamination caused by TEPCO’s nuclear power plants. TEPCO is supposed to be in charge of cleaning up the mess, but it is now forcing each region to accept the contaminated soil. The company is now pressuring each region to accept the contaminated soil, as if it were a natural disaster, saying that it is not someone’s fault and that everyone should cooperate for the recovery. This is the premise that makes us feel uncomfortable. This is where the question should be asked again. (Sakaki)
Tokyo enacts ordinance mandating solar power for homes, first in Japan, starting in spring of 2025
December 15, 2022
On December 15, the final day of the regular session of the Tokyo Metropolitan Assembly, a revised ordinance related to the nation’s first mandatory installation of solar panels on newly constructed single-family homes was passed and enacted with a majority of votes in favor. The aim is to reduce greenhouse gas emissions in the residential sector. The new system will begin in April 2025, after a preparatory period to support businesses and inform residents.
According to the Tokyo Metropolitan Government, major housing manufacturers will be obligated to install panels on buildings with a total floor area of less than 2,000 square meters, including residences. Purchasers will be required to reduce the environmental impact of their homes as an obligation to make an effort.
The TMG estimates that if 4-kilowatt panels are installed, the initial cost of 980,000 yen can be recovered in 10 years through the income from electricity sales, and only 6 years if the TMG subsidy is used.
https://www.tokyo-np.co.jp/article/220091
Radiation concerns overshadow Tokyo
Ahead of the Summer Games, independent readings remain high
While many are concerned about radiation at venues located north of Tokyo, some readings have shown high levels a few miles from the Olympic Stadium, above.
Jan 13,2020
The 2020 Summer Olympics in Tokyo is now just over six months away, but rather than excitement, there is growing apprehension regarding the radiation levels in Japan.
In the aftermath of the 2011 Fukushima Daiichi nuclear disaster, the Japanese Ministry of Environment has downplayed concerns regarding radiation in the country, but local civic groups and environmental organizations around the world still have their suspicions. Looking at the radiation levels of the sites where each sporting event will be held, it is understandable why so many are concerned.
The J-Village, which is the official training site of the Japanese women’s football team and where the torch relay will start on March 26, is located about 10 kilometers (6 miles) south of the Fukushima Daiichi Nuclear Power Plant. The Japanese women’s football team is scheduled to kick off the torch relay across the country.
Operated by Tokyo Electric Power Company (Tepco), the power plant suffered severe damage from the magnitude 9.0 earthquake and tsunami that struck in 2011. The damage to several reactors led to leaks of radiation, which is considered the biggest problem ahead of the Games.
When the environmental organization Greenpeace measured the radiation levels of a grassy area near the parking lot of the J-Village in October 2019, the measurement came out to be 71 microsieverts per hour (μSv/h) close the surface and 32 μSv/h at 10 centimeters (4 inches) above the surface, even though the Japanese Ministry of Environment has pledged to keep the reading to below 0.23 microsieverts per hour, according to a report released by the organization.
In the response to the report, the Japanese Ministry of Environment and Tepco moved fast to remove the soil around the hotspot uncovered by Greenpeace Japan.
Based on a Greenpeace report released in December, the organization returned to the J-Village to conduct tests once again and found that the levels at the specific location had dropped to lower than 1 μSv/h at 10 centimeters. However, on the same day just to the north of that hotspot, Greenpeace tested an area adjacent to the parking lot, where levels were up to 2.2 μSv/h at 10 centimeters. Near the entrance of this same parking lot, Greenpeace measured 2.6 μSv/h at 10 centimeters.
“Many questions and uncertainties remain: how were such high levels of radiation (71 μSv/h at close to surface) not detected during the earlier decontamination by Tepco? Why were only the most alarming hotspots removed and not the wider areas following the standard decontamination procedures?” asked Heinz Smital, nuclear physicist and radiation specialist at Greenpeace Germany.
After a request of the Japanese government, the International Olympic Committee (IOC) agreed to host some of the Olympic baseball and softball games at Fukushima Azuma Baseball Stadium, which is only 97 kilometers away from the Fukushima Daiichi Nuclear Power Plant.
The Miyagi Stadium, located in Miyazaki, is a football venue for the Games and is about 118 kilometers away from the power plant.
Since both sites are located relatively close to the site of the accident, many have expressed concerns, as football and baseball are expected to be some of the most popular events at the Olympics this summer.
Interestingly, there hasn’t been much data published regarding those two sites. But when the radiation levels are measured by the organization that takes care of Azuma Stadium every month, the number doesn’t go any higher than 0.2 μSv/h.
Once again, environmental organizations are suspicious. When Greenpeace measured the radiation levels at Namie, located 10 kilometers north of the Fukushima Daiichi Nuclear Power Plant, the radiation levels were as high as 100 times more than the international limit for public exposure. Although the contaminated soil has been removed, the levels still go up when it rains because the soil from the top of the forest runs down to the decontaminated area.
According to Greenpeace, since the Olympics will be held during the summer, typically a rainy and typhoon-prone season in Japan, the soil from the mountains around the Azuma Baseball Stadium may re-contaminate the decontaminated areas.
Although Japan completed the decontamination process around the stadium, right after Typhoon Hagibis last year, the radiation increased about 2000 times.
Aside from baseball, softball and football, the other 39 stadiums at which events will be held are located within a two-hour radius of the Olympic Stadium in Shinjuku, Tokyo.
The Olympic Stadium is about 244 kilometers from the Fukushima Daiichi Nuclear Power Plant, so the site is not as affected by radiation as the more contaminated regions to the north.
But members of the anti-nuclear movement in Japan have stated that Tokyo also may not be safe. The 2017 Nobel Peace Laureate Tilman Ruff, who is on the Australian Board of the International Campaign of Abolish Nuclear Weapons (iCAN), said in November that radiation has not only reached areas south and west of the power plant like Chiba, Saitama and Fukushima, but contamination levels are also pretty high in the northern part of Tokyo as well.
The radiation level of soil that Tokyo residents have measured themselves has turned out to be as high as 0.443 μSv/h.
One of the biggest reasons behind the controversies regarding the high radiation levels and hosting the Tokyo Olympics has been the limited data provided by the Japanese Ministry of Environment. Officials have repeatedly said that Fukushima is safe, but they haven’t announced detailed data regarding the contamination or decontamination of the area around Fukushima.
Due to distrust in the government, some Japanese citizens have stepped up to carry out their own measurements of the radiation levels in the areas. Since the disaster, Minna-no Data Site, a collective database of citizen’s radioactivity measurements, has collected readings on food, soil and other things.
International environmental organizations are asking the Japanese government to release more measurements and to reveal the current level of radiation.
Despite the concerns, for professional athletes, the Olympics represent a once-in-a-lifetime opportunity that, for many, is the culmination of their entire career. While they might be concerned about the current political situation or safety issues, very few of Korea’s potential Olympians are willing to give up an opportunity that they’ve trained most of their lives for.
Due to this, the Ministry of Culture, Sports and Tourism and the Korean Olympic Committee (KOC) are considering running their own cafeteria to provide food for the athletes using ingredients from Korea.
BY KIM JEONG-YEON [kang.yoorim@joongang.co.kr]
http://koreajoongangdaily.joins.com/news/article/article.aspx?aid=3072530
Fukushima: Japan court finds government liable for nuclear disaster
December 13, 2019
A Japanese court has ruled for the first time that the government bears partial responsibility for the 2011 Fukushima nuclear disaster.
The court was responding to a case brought by a group of evacuees who had been forced to flee their homes.
It ruled that the disaster could have been averted if government regulators had ordered plant operator Tepco to take preventive safety measures.
The government and Tepco were both ordered to compensate the evacuees.
Around 80,000 people were forced to flee their homes when three reactors failed at the plant after a tsunami that struck six years ago.
It was the world‘s most serious nuclear accident since Chernobyl in 1986.
The district court in Maebashi, north of Tokyo, ruled in favour of 137 evacuees seeking damages for the emotional distress of fleeing their homes.
The parties were told to pay a total 38.6m yen ($341,000, £275,000) in compensation, far below the 1.5bn yen the group had sought.
A number of legal cases have already been filed against Tepco (Tokyo Electric Power) relating to the disaster, but this is the first time a court has recognised that the government was liable for negligence.
Chief Cabinet Secretary Yoshihide Suga, the government‘s top spokesman, declined to comment but said the ruling would have no impact on the country‘s nuclear power policies.
Anti-nuclear sentiment runs high in Japan, but the government has been resolute in restarting reactors that were closed in the aftermath of the disaster.
https://stockdailydish.com/fukushima-japan-court-finds-government-liable-for-nuclear-disaster/
Hotspots in East Tokyo’s Mizumoto Park
Tokyo’s Fukushima cesium-enriched microparticle (CsMP) update
Secondary electron images from Utsunomiya et al. 2019, of CsMPs discovered in atmospheric particles trapped on a Tokyo air filter from March 15, 2011, with major constituent elements displayed.
August 17th, 2019
An interesting paper was recently published by a team headed by Dr. Satoshi Utsunomiya of Kyushu University on the subject of Fukushima-derived cesium-enriched microparticles (CsMPs). As many readers will know, several researchers have located and analyzed these microparticles, in which the cesium is often bonded within glass-like silicates and therefore generally significantly less soluble than other Cs chemical species in water, though technically not actually “insoluble.” After an accident like Fukushima, it is much more common to find cesium in water-soluble compounds like cesium hydroxide (CsOH), and predictions about how quickly the cesium will be dispersed through the environment, in soil, in watersheds, taken up by plants and animals, etc, are based primarily on this assumption. The discovery of sparingly-soluble Fukushima-derived cesium microparticles, first documented by Adachi et al in 2013, and since then confirmed by many others, has raised a number of questions. How abundant are they? Does their presence increase health risk to humans? How much do they reveal about the process of the accident itself? From the standpoint of researchers the microparticles are very intriguing.
Utsunomiya et al.’s paper is titled “Caesium fallout in Tokyo on 15th March, 2011 is dominated by highly radioactive, caesium-rich microparticles,” and as noted in a recent Scientific American article, it was originally accepted for publication in 2017 by Scientific Reports journal. Weeks before publication, however, Tokyo Metropolitan Industrial Technology Research Institute (TIRI), operated by the Tokyo Metropolitan Government, raised objections with Scientific Reports. However no questions about the quality of the science or the validity of the paper’s findings appear to have been brought forward. This in itself was highly irregular. Two years elapsed without resolution, and in March of this year Scientific Reports took the highly unusual step of withdrawing its offer to publish the paper, despite the lack of confirmed evidence that would warrant it. Utsunomiya and several co-authors decided that the best course of action was to place the study in the public domain by publishing it via arXiv, a highly respected pre-print website. The paper is now open and free to download.
This study makes a valuable contribution to the body of scientific literature regarding the consequences of the Fukushima disaster in general and CsMPs in particular. I think it was a mistake for Scientific Reports not to publish it two years ago, especially considering the rapid pace of research into these particles and the tremendous interest in them. To summarize the findings briefly, the researchers analyzed air filter samples from March 15, 2011, in Setagaya, Tokyo, when the radioactive plume from Fukushima caused a noticeable peak in airborne radioactivity in the city. The researchers used radiographic imaging (placing the filters on a photographic plate) to identify any highly radioactive spots. Using these images as a guide they were able to isolate seven CsMPs, which they subjected to atomic-scale analysis using high-resolution electron microscopy (HRTEM) to identify their nano-scale structure and chemical composition. Based on these detailed measurements and quantitative analysis, the researchers concluded that 80-89% of the total cesium fallout in Tokyo that day was in the form of highly radioactive microparticles. The second half of the paper is devoted to estimates of how long such particles might be retained in the human lungs if inhaled, based on previous studies that reported the effects of inhalation of non-radioactive atmospheric particles, and some possible physical consequences. The paper is valuable for the quantitative analysis of the Tokyo particles alone, since it is one of few studies that deal with the issue for Tokyo specifically. Research into possible health consequences of the particles, meanwhile, has gained momentum while the paper remained unpublished, using approaches such as stochastic biokinetics, and DNA damage studies. In a recent paper, Utsunomiya and colleagues produced estimates of the rate of dissolution of the particles inside the human lung, in pure water, and in seawater. A working group at the Japan Health Physics Society has also devoted attention to the issue, noting the need for further study of the risk from intake of these particles, particularly to the lung. Likewise, others have been studying the particles to learn about the accident progression and possible consequences for decommissioning.
Why did Tokyo Metropolitan Industrial Technology Research Institute object to the paper’s publication? When we first heard that publication of the paper was being held up by Tokyo Metropolitan Government, we thought politically-motivated suppression was a likely explanation. Since then the public has learned that the actual complaint given to Scientific Reports stems from a chain of custody issue of the original air filter samples. We don’t want to speculate further about Tokyo’s motivation, because we have seen no direct evidence yet of political suppression in this case. But based on past occurrences with other government institutions, we would find it plausible. We will let readers know if TIRI responds to our inquiries.
We spoke with Dr. Utsunomiya and co-author Dr. Rodney Ewing recently. I was aware of their co-authorship of several strong papers on CsMPs, including Utsunomiya’s plenary talk at the Goldschmidt Conference in Yokohama in 2016, which I attended. I asked how this new arXiv paper fits in with their other papers, and where they think this research is heading next:
Satoshi Utsunomiya:
Thank you for asking. The Tokyo paper was actually our first paper regarding CsMPs. As I mentioned, the paper was accepted two years ago. There were no previous papers of ours on CsMPs that time. Currently we are working on several topics on CsMPs. I cannot reveal the content yet, as we are thinking about a press release for the next paper. But I think it is important to continue this kind of research, providing some insights for decommissioning at Fukushima Daiichi Nuclear Power Plant.
Azby Brown:
I didn’t realize that this was your first paper on the subject. How does it relate to the one presented at the Goldschmidt Conference in Yokohama in 2016? “Cesium-Rich Micro-Particles Unveil the Explosive Events in the Fukushima Daiichi Nuclear Power Plant.” Didn’t that paper receive a prize?
SU:
My talk at Goldschmidt briefly covered the story described in the two papers that were accepted for publication at the same time. One was published in Scientific Reports. The other one was not published. There was no prize. It was a plenary talk.
AB:
I see. I recall that it received a lot of attention. Now it makes more sense to me.
Can you tell me a little bit about the specific characteristics and focus of your research, and how it differs from papers like Adachi 2013, Abe 2014, etc? Generally speaking, that is. I’d like to help people understand the different aspects of the field.
SU:
Adachi reported the discovery of CsMPs. Abe demonstrated X-ray absorption analysis on the CsMPs. We focused on the nanotexture inside CsMPs. We are particularly interested in the detailed evidence remaining within the microparticle, which can provide useful information on the development of the chemical reactions during the meltdowns, because it is still difficult to directly analyze the materials inside the reactors. We, for the first time, succeeded in performing isotopic analysis on individual CsMPs. More specifically, the occurrence of uranium can directly tell the story of how the fuel melted. Our research has two directions: one is to understand the environmental impact of CsMPs, and the other is to provide useful information on the debris properties to help decommissioning at FDNPP. We are also interested in the implications for health.
AB:
Can you tell me a little bit about your working relationship? Satoshi went to the US to work in your lab, right Rod? When was that, and what were you working on?
Rod Ewing:
Satoshi and I have known each other since 2000, when he joined my research group as a post-doctoral fellow at the University of Michigan. He was a member of the research group until 2007. We collaborated on a wide range of topics that had to do with radioactive materials, such as the transport of plutonium at the Mayak site in Russia to the identification of uranium phases within C60 cages, so called buckyballs, that were formed and released from coal power plants. Once Satoshi returned to Japan to take his position at Kyushu University, we continued to collaborate, particularly on topics related to Fukushima Daiichi.
AB:
How did you both get interested in CsMPs?
RE:
Once discovered, CsMPs were clearly of high interest. They had not been noted in earlier reactor accidents. Satoshi is a master with the transmission electron microscope – exactly the tool/technique needed to study these particles.
AB:
For people who aren’t familiar with what’s involved in a research experiment like yours, can you describe the overall process? What were the technical challenges?
RE:
I would just emphasize that it is very difficult to find and characterize these particles. Considering the full literature and efforts by others as well as our team – the results are impressive. It is rare to have both the TEM characterization and the isotopic data.
SU:
As Rod mentioned, it is difficult to obtain both TEM and isotopic data from a few micron-sized spots. The isolation of CsMPs from soils is a time consuming process. But to date, many scientists have found and isolated CsMPs. The important thing is what information we can obtain from the analysis of CsMPs. We have been taking various approaches to elucidate the properties, environmental impact, and the role in releasing fissile actinides to the environment.
As described above, many papers examining various aspects of Fukushima-derived cesium microparticles have been published since they were first identified in 2013. Even so, important aspects remain only partially documented and understood to date. Below is a partial list of relevant publications.
Papers mentioned in this article:
Caesium fallout in Tokyo on 15th March, 2011 is dominated by highly radioactive, caesium-rich microparticles
Utsunomiya, et al., 2019
https://arxiv.org/abs/1906.00212
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Emission of spherical cesium-bearing particles from an early stage of the Fukushima nuclear accident
Adachi et al., 2013
http://www.nature.com/articles/srep02554
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Detection of Uranium and Chemical State Analysis of Individual Radioactive Microparticles Emitted from the Fukushima Nuclear Accident Using Multiple Synchrotron Radiation X-ray Analyses
Abe et al., 2014
http://pubs.acs.org/doi/abs/10.1021/ac501998d
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Dissolution of radioactive, cesium-rich microparticles released from the Fukushima Daiichi Nuclear Power Plant in simulated lung fluid, pure-water, and seawater
Suetake et al., 2019
https://doi.org/10.1016/j.chemosphere.2019.05.248
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Development of a stochastic biokinetic method and its application to internal dose estimation for insoluble cesium-bearing particles
Manabe & Matsumoto, 2019
https://doi.org/10.1080/00223131.2018.1523756
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DNA damage induction during localized chronic exposure to an insoluble radioactive microparticle
Matsuya et al., 2019
https://doi.org/10.1038/s41598-019-46874-6
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Provenance of uranium particulate contained within Fukushima Daiichi Nuclear Power Plant Unit 1 ejecta material
Martin et al., 2019
https://www.nature.com/articles/s41467-019-10937-z
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Internal doses from radionuclides and their health effects following the Fukushima accident
Ishikawa et al., 2018
https://iopscience.iop.org/article/10.1088/1361-6498/aadb4c
Related papers (by year of publication):
Characteristics Of Spherical Cs-Bearing Particles Collected During The Early Stage Of FDNPP Accident
Igarashi et al., 2014
http://www-pub.iaea.org/iaeameetings/cn224p/Session3/Igarashi.pdf
—————————————————————–
Radioactive Cs in the severely contaminated soils near the Fukushima Daiichi nuclear power plant
Kaneko et al., 2015
https://www.frontiersin.org/articles/10.3389/fenrg.2015.00037
—————————————————————–
First successful isolation of radioactive particles from soil near the Fukushima Daiichi Nuclear Power Plant
Satou et al., 2016
http://www.sciencedirect.com/science/article/pii/S2213305416300340
—————————————————————–
Internal structure of cesium-bearing radioactive microparticles released from Fukushima nuclear power plant
Yamaguchi et al., 2016
http://www.nature.com/articles/srep20548
—————————————————————–
Three-Year Retention Of Radioactive Caesium In The Body Of Tepco Workers Involved In The Fukushima Daiichi Nuclear Power Station Accident
Nakano et al., 2016
http://rpd.oxfordjournals.org/content/early/2016/03/14/rpd.ncw036
—————————————————————–
Monte Carlo Evaluation of Internal Dose and Distribution Imaging Due to Insoluble Radioactive Cs-Bearing Particles of Water Deposited Inside Lungs via Pulmonary Inhalation Using PHITS Code Combined with Voxel Phantom Data
Sakama, M. et al., 2016
http://scholar.google.com/scholar_lookup?&title=Radiological%20Issues%20for%20Fukushima%E2%80%99s%20Revitalized%20Future&pages=209-220&publication_year=2016&author=Sakama%2CMinoru&author=Takeda%2CShinsaku&author=Matsumoto%2CErika&author=Harukuni%2CTomoki&author=Ikushima%2CHitoshi&author=Satou%2CYukihiko&author=Sueki%2CKeisuke
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Radioactively-hot particles detected in dusts and soils from Northern Japan by combination of gamma spectrometry, autoradiography, and SEM/EDS analysis and implications in radiation risk assessment
Kaltofen & Gundersen, 2017
https://www.sciencedirect.com/science/article/pii/S0048969717317953?via%3Dihub
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Caesium-rich micro-particles: A window into the meltdown events at the Fukushima Daiichi Nuclear Power Plant
Furuki et al., 2017
https://www.nature.com/articles/srep42731
—————————————————————–
Isotopic signature and nano-texture of cesium-rich micro-particles: Release of uranium and fission products from the Fukushima Daiichi Nuclear Power Plant
Imoto et al., 2017
—————————————————————–
Uranium dioxides and debris fragments released to the environment with cesium-rich microparticles from the Fukushima Daiichi Nuclear Power Plant
Ochiai et al., 2018
https://pubs.acs.org/doi/abs/10.1021/acs.est.7b06309
—————————————————————–
Novel method of quantifying radioactive cesium-rich microparticles (CsMPs) in the environment from the Fukushima Daiichi nuclear power plant
Ikehara et al., 2018
https://pubs.acs.org/doi/full/10.1021/acs.est.7b06693
—————————————————————–
Formation of radioactive cesium microparticles originating from the Fukushima Daiichi Nuclear Power Plant accident: characteristics and perspectives
Ohnuki, Satou, and Utsunomiya, 2019
https://www.tandfonline.com/doi/abs/10.1080/00223131.2019.1595767
https://blog.safecast.org/2019/08/fukushima-cesium-enriched-microparticle-csmp-update/
Citizens Group Leader in Kashiwa Radiation Hotspot Quits
Kashiwa city, in Chiba prefecture is located 31.3 km ( 19.45 miles ) northeast from Tokyo.
August 16, 2019
The leader of a Citizens’ Group to Protect Children from Hotspot Radiation in Kashiwa city, Chiba, decided to suspend its activities.
Mrs. Yuki Ohsaku, representative of the group evacuated recently to Kyushu after her two children started nosebleeding and other core members also are considering moving out of Kashiwa city. 10 members have already relocated.
In May the Kashiwa mayor wrote in his blog that those worried about the effects of radiation have some kind of mental problems. Kashiwa city originally had no plan to conduct any survey after citizens reported high radiation levels. Mrs. Ohsaku’s group collected over 10,000 signatures and submitted the petition to the City Council with 100 members, and this made the Kashiwa city start measuring radiation levels in schools and do decontamination work.
However, the group’s activities and her relocation with two children to Kyushu caused lots of problems within her family. Her in-laws are not happy that she is disobeying the authorities and that her name gets published (since she is the group leader). Now the in-laws are demanding that she divorce her husband. She says that old and middle-aged people in general have absolute confidence in the printed media as their news source, and what’s not reported in the newspapers is not conceived as reality.
The mainstream media (including newspapers) has the least coverage on health effects of radiation and only report the government’s “adjusted” radiation levels. Yomiuri News even wrote in May that the information about hotspots in Chiba are based on false rumours and that they doesn’t exist. (Matsutaro Shoriki, ex-president of Yomiuri was a CIA agent and is called the father of nuclear power in Japan according to Wikipedia.) She says her in-laws believe in the Yomiuri report.
Only those collecting information from internet sources are aware of what is really going on regarding radiation issues in Japan. As a result, there the public have split opinions on this subject.
Mrs. Ohsaku says the conflict of opinions on radiation issues has been harder to deal with than the radiation itself. Many people around her chose not to think about it and neighbors don’t want her to make it a big issue. Some members of her group are tired of being ridiculed as “freaks”. Her group wants decontamination but others in the hotspot thinks it’s waste of money. They say “Let’s not worry about it. Think of people in Fukushima. They live in an even worse environment than us.”
‘Shocked’ Fukushima evacuees say Tepco ruling fails to fairly compensate them for suffering
Tokyo Not Fit For Human Habitation
Testimony of a mother who evacuated from Tokyo
Radioactive contamination in the Tokyo metropolitan area in the early stage of the Fukushima Daiichi Nuclear Power Plant (FDNPP) accident and its fluctuation over five years
Geographical distribution of the 134+137Cs precipitation referred to the aircraft monitoring results by the MEXT of Japan on December 16, 2011 [30]. Adapted from ‘Extension Site of Distribution Map of Radiation Dose, etc.’ (http://ramap.jmc.or.jp/map/).
High Risk of Inhaling Cesium Contained in Shower Near Tokyo
Via Kurumi Sugita
The result of analysis of a cartridge filter of shower water using essentially zeolite. The user lives in Funabashi city in Chiba (near Tokyo).
The period of use is from Feb 2017 to August 2017.
The volume of water used is about 52500L.
Cesium fixed in cartridge is 1128.96 Bq/kg
While taking a shower, one is exposed to a high risk of inhaling cesium contained in the steam.
Radioactive Contamination from Fukushima Nuclear Disaster: Did You Know that Tokyo Metropolitan Area is Widely Contaminated Too?
We are “GO WEST & COME WEST!!! 3.11 Evacuees from Tokyo area”.
Etsuji Watanabe, one of the members of Association for Citizens and Scientists Concerned about Internal Radiation Exposures (ACSIR), estimates that each year at most 180,000 people may develop cancer and 90,000 will be killed by cancer or some other causes.
Radiation Levels in Tokyo Metropolitan Area (Year 2013~2015: µSv/hour)
Estimation of the risk for 10 million people in Tokyo Metropolitan area exposed by radiation (2.4mSv/year).
Data provided by Mr. Kirishima.
* Risk occurrence: 10,000 person-Sv
** According to a book ‘Chernobyl: Consequences of the Catastrophe for People and the Environment’ by Alexey V. Yablokov, ratio of death caused by cancer and not by cancer is 1 to 1.
Fukushima Radiation is Now Spreading to Tokyo and Eastern Japan
The child thyroid cancer which were commonly seen after Chernobyl accident is being found even around Tokyo area after several years from 3.11 Fukushima accident in 2011.
Severe illness such as various cancers, leukemia, and cardiac infarction are increasing too at alarming rate. For some people, immune system has also weakened due to radiation effects, and the conditions of their chronic disease or common cold are worsening.
Therefore some people from Tokyo have evacuated to safer places.
However Japanese government (and main media) continue to ignore the effects of Fukushima radiation even though the radiation level is still dangerously high. The government have recently lifted evacuation orders for the restricted residence areas and cut housing subsidies for evacuees, forcing them to believe it is safe to return.
Therefore some people think it is nonsense to evacuate from Tokyo area and believe the evacuees are over-reacting. Many of the evacuees are feeling very isolated and are living in poverty after moving to safer locations, forcing some to return to the contaminated area against their will.
About 45 million people still remain in contaminated metropolitan area in Tokyo. But many people are started feeling very ill one after another. In fact many of my friends living in Tokyo or Eastern Japan have collapsed from numerous illnesses over these years.
It has proven that an increase of serious illness was seen four-to-five years after 1986 Chernobyl meltdown and hundreds of thousands of people lost their lives.
Now we are facing the same situation in Tokyo and eastern Japan.
Fukushima radiation problem permits no delay. We need to encourage people in Tokyo and Eastern Japan to evacuate to safer places to protect their lives.
In order to fight against the inhumanity of the Japanese government toward lives of people and uncover the fact of radiation effect in Japan, it is urgently needed to spread the information like this to the public.
http://www.gowest-comewest.net/statement/20170825english.html
Tokyo’s Tap Water Contaminated
Via Kaye Nagamine
A Japanese local magazine gives the list of prefectures where Cesium 134 and Cesium 137 have been detected in their tap water !
The left column gives the name of the prefecture. The central column gives the Cesium 134 detected and the right column the Cesium 137 : in white with three Chinese characters reads “not detected” while in black the white figures indicates the level of bq detected.
The third line from the bottom is Tokyo. Cesium 134 and Cesium 137 have both been detected in its tap water at high levels!
Source: https://jisin.jp/serial/%E7%A4%BE%E4%BC%9A%E3%82%B9%E3%83%9D%E3%83%BC%E3%83%84/disaster/26165
1.This Month
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Movie Premiere -“The Road to War”- Australia is being set up to be the US proxy in its coming war with China.
Premiere in Melbourne March 22 at the Carlton Nova cinema
Hobart screening State Cinema March 23 with special guest Bob Brown
Adelaide screening Capri cinema March 29
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