Tepco suspends Fukushima No. 1 cleanup to probe fatal accidents
Jan 22, 2015
Tokyo Electric Power Co. on Thursday said it will suspend the decommissioning of the Fukushima No. 1 power plant until it completes safety checks related to two fatal accidents at its facilities in the prefecture earlier this week.
“The most important thing is to thoroughly conduct safety checks,” Tepco spokesman Shinichi Kawamura told a news conference in Fukushima.
Decommissioning the wrecked plant involves many processes, but “we can’t tell when we will finish the checks for all work at this point,” Kawamura said, adding that it won’t take weeks.
On Monday, a 55-year-old subcontractor hired to work at the Fukushima No. 1 plant fell into a 10-meter-deep water tank during an inspection Monday. He was taken to a hospital but died the following day. Although the man was wearing a safety belt, he did not appear to be using it at the time.
On Tuesday, a subcontractor in his 40s died at the nearby Fukushima No. 2 plant after his head got crushed by an object during a concentrator inspection. The object was supposed to be held in place by a crane.
Kawamura said Tepco wants to pinpoint potentially unsafe places at the site, improve employee safety habits and ensure the procedures they are performing are safe.
For instance, Tepco will check whether adequate safety steps are being taken when handling heavy objects.
Since decommissioning work often requires the use of special industrial tools, workers must follow the required procedures to ensure their safety, Kawamura added.
The suspension will not affect the fuel-cooling and water-filtering operations, the utility said.
Source: Japan Times
Expert: “It’s completely unsafe… impossible to remove 100s of radioactive materials” — 1,200 radionuclides, only 62 reduced
January 21st, 2015
TV: Gov’t approves plan to ‘drain’ Fukushima nuclear waste into ocean — Professor: Monitoring necessary to detect ‘worrisome signals’ —
NHK, Jan 21, 2015 (emphasis added): Regulators approve Fukushima wastewater drainage — Japan’s nuclear regulator has approved a plan by [TEPCO] to drain filtered wastewater from the firm’s crippled Fukushima Daiichi plant into the sea… The firm also plans to reduce the level of radioactive material in the water before releasing it into the nearby Pacific. On Wednesday, the Nuclear Regulation Authority approved TEPCO’s plan to install drainpipes and a pumping system and to reduce the level of radioactive cesium-137 to less than one becquerel per liter.
NHK Transcript, Jan 21, 2015: Japanese regulators have approved a controversial plan by [TEPCO]. They say TEPCO officials can flush filtered waste water into the ocean… Fisherman: “We can’t trust Tepco… If they proceed with their plan the situation will surely go back to how it was before. I’m worried the government and Tepco will act to suit themselves.”
Wall St Journal, Jan 21, 2015: Japan’s nuclear regulator has officially called on [Tepco] to work toward discharging low-level contaminated water… just two days after a worker fell into [a tank] used to store contaminated water… Tepco is using a processing system [that] is unable to take out the tritium [and] is reluctant to release it into the ocean to avoid… criticism from neighboring countries and some nations with a Pacific Ocean coastline… there is no detailed study about tritium’s long-time effect on animal genes. Mamoru Takata, a Kyoto University professor and expert on radiation’s long-term effects, said monitoring would be necessary to detect any worrisome signals.
TEPCO: [ALPS] is designed to remove most remaining radioactive contaminants
TEPCO (pdf): (ALPS) — Removal capacity: Reduce 62 nuclides below the density limit
Asahi Shimbun in Jan. 2012: “To prevent a further contamination of the sea [Tepco] plans to remove about 1,000 kinds of radioactive materials from water”
Japan Atomic Energy Agency (pdf), Feb 2014: TOPICS Fukushima — [W]e carried out detailed calculations… for 1,200 radionuclides, and the results were incorporated into a database.
Dr. Gordon Edwards, court-certified nuclear expert, Aug 8, 2014 (50:00 in): It can’t be dumped into the ocean, because it’s completely unsafe because of these fission products. They have built over 1,000 large tanks, huge tanks… that contain this very, very radioactively contaminated water. At the moment they’re trying to filter out these fission products… It’s impossible for them to remove all those hundreds of radioactive materials. They know how to remove about 62 of them, but there’s other ones that they cannot.
Source: Enenews
TEPCO’s Fukushima Folly
January 20, 2015
Fission Stories #180
In early August 2014, the Tokyo Electric Power Company (TEPCO) announced that its latest analysis revealed the meltdown of the Unit 3 reactor at Fukushima Daiichi was worse than previously estimated.
Recall children’s books with dots and numbers? Children connect the dots to reveal pictures of clowns and puppies and spaceships and such.
TEPCO is essentially painting pictures using very few dots with no numbers. They keep running computer studies that put numbers almost randomly on the few dots they have to see what picture emerges. “Lo and behold” to quote a professor I had in college, different pictures emerge.
TEPCO doesn’t know when the Unit 3 core damage began
Or how much of the reactor core was damaged.
Or how and when the damaged core relocated after melting.
Or how, when, and where the molten burned through the reactor pressure vessel.
Or how it moved after it fell onto the containment’s concrete floor.
And they don’t know how much water, if any, was on the containment floor when the molten core joined it.
TEPCO fills in these information gaps with guesses. And they keep revising their results because they keep revising their guesses.
Our Takeaway
I choose not to play rate-a-guess. It would take me away from helping my nephew finish his connect-the-dots drawing. Only seven numbers remain to be connected. While it resembles a race car now, it might yet turn out to be a giraffe. Or maybe even a kitten.
Before I decide which TEPCO picture I most prefer, they are going to have to fetch more dots and put real numbers on as many of them as possible.
At some point in the next few years, TEPCO will maneuver a robot into the reactor area. That will reveal what the former reactor core looks like now. This information won’t answer all the questions, but it’ll number several more dots to support a meaningful analysis of what happened when.
Until then, TEPCO is just keeping their computer jockeys busy. They could get results of similar value using Ouija boards—and it would reduce their carbon footprint.
Source: Union of Concerned Scientists
Study: Fukushima plume spread worldwide, far exceeding the hundreds of miles mentioned previously — 100 Quadrillion becquerels of Cs-137 released tops Chernobyl
“Implicates radiological hazard at distances otherwise overlooked”
January 21st, 2015
International Journal of Environmental Research and Public Health (pdf), University of Florida College of Medicine, Weill-Cornell Medical College, etc. (2014):
- The Fukushima Dai-ichi nuclear power plant accident is an example of a contemporary nuclear plant accident with serious implications.
- The Fukushima NPP accident has had health implications due to the high levels of radiation released and vast area over which the radiation has disperse.
- The significant radiation release, as likened to Chernobyl, reflects the context and severity of the Fukushima accident.
- The level of 137Cs that was released is likened to Chernobyl levels, with 100,000 TBq released.
- Radioactive plume dispersion occurs worldwide, far exceeding 300 miles previously mentioned. This should implicate radiological hazard at distances otherwise overlooked.
Potassium Iodide Distribution
- Radioactive plumes from the Chernobyl accident containing 131I caused benign and malignant thyroid nodules to develop, especially in children within a 310 miles radius of the incident.
- The current recommendation is for KI [potassium iodide] availability to people 200 miles from a NPP. Plume radii for nuclear events have been shown to exceed 300 [miles]. Extension of KI availability to 300 miles only further underscores the inadequacy of current preparedness plans.
- In regard to KI prophylaxis, TEPCO utilized 17,500 KI tablets for 2,000 onsite workers… with one individual receiving and taking 85 tablets.
- Radiological plumes containing 131I cause benign and malignant thyroid nodules to develop within a 300 mile radius… This necessitates KI pre-distribution to all schools, hospitals and other of-interest sites extending 300 miles from any nuclear reactor. Evacuation or sequestering is impossible in congested urban areas… There is currently virtually no compliance with [the] 20 miles radius KI pre-distribution law, section 127 of the Bioterrorism Act of 2002. In fact, there is little compliance with the 10 miles Ki pre-distribution radius law in the United States.
- Japan did not utilize KI for prophylaxis of the general public, acknowledging it was not prepared to act accordingly.
Source: Enenews
Regulators approve Fukushima wastewater drainage
TEPCO officials plan to pump up contaminated groundwater through wells built around structures housing the plant’s damaged reactors. The firm also plans to reduce the level of radioactive material in the water before releasing it into the nearby Pacific.
On Wednesday, the Nuclear Regulation Authority approved TEPCO’s plan to install drainpipes and a pumping system and to reduce the level of radioactive cesium-137 to less than one becquerel per liter. It also agreed with the firm’s policy of starting the drainage system gradually.
The regulator asked the utility to ensure that no wastewater leaks and to fully disclose measurements for radioactive material.
Tokyo Electric said it will not drain filtered wastewater until local residents agree to the plan.
The timing of such agreement is unclear, as local fishermen are worried that rumors of tainted seawater would affect their business.
Fukushima Watch: Regulator Calls on Tepco to Discharge Tritium Water
Water tanks storing contaminated water at Fukushima Daiichi nuclear plant are seen in this photo from November
Jan 21, 2015
By Mari Iwata
Japan’s nuclear regulator has officially called on Tokyo Electric Power Co.9501.TO +0.63% to work toward discharging low-level contaminated water into the ocean from the Fukushima Daiichi nuclear plant.
The call on Wednesday comes just two days after a worker fell into one of the hundreds of tanks used to store contaminated water at the plant during an inspection, a fatal accident that has refocused attention on the need for improved safety measures and a longer term solution for the huge amounts of water in storage.
“Tokyo Electric Power must consider whether it (storing the water) is really necessary,” said Shunichi Tanaka, chairman of the Nuclear Regulation Authority, at a regular board meeting Wednesday. “It is surely harmful if it leads to the death of workers.”
The regulator discussed Wednesday a draft timetable for action by Tepco to address risks at the plant that sets out a 2017 start for discharging the water. The draft is likely to be approved next week.
The International Atomic Energy Agency already recommended more than a year ago that Tepco consider releasing water with low level tritium contamination in a controlled way so that it could focus on other issues.
A Tepco spokesman, speaking after Mr. Tanaka’s remarks, said the company wasn’t currently considering releasing the water into the ocean.
Contaminated water has been a constant headache for the operator of the plant since the triple meltdowns in March 2011. A large amount of groundwater is flowing into the site, adding 300 to 400 tons to the amount of highly contaminated water at the plant on a daily basis.
Tepco is using a processing system to remove radioactive material from the highly contaminated water, but the system is unable to take out the tritium. Tepco has been storing the tritium-contaminated water in about 1,000 tanks, but is reluctant to release it into the ocean to avoid adding to tension with local communities and criticism from neighboring countries and some nations with a Pacific Ocean coastline.
But the power company is close to running out of space to build new tanks at the plant and workers are increasingly under pressure to juggle their other duties with the ever-increasing workload of tank management, prompting the IAEA call in late 2013.
Tritium is considered one of the least harmful radioactive materials at nuclear plants. Water contaminated with tritium is discharged from plants elsewhere in the world after dilution.
However, there is no detailed study about tritium’s long-time effect on animal genes. Mamoru Takata, a Kyoto University professor and expert on radiation’s long-term effects, said monitoring would be necessary to detect any worrisome signals.
Source: JapanRealTime
Plan OK’d for dumping Fukushima’s water into ocean after treatment
The plan is one of the measures aimed at curbing the amount of contaminated water building up at the seaside complex. But it remains uncertain when the operator may actually release the water.
Local fishermen have registered strong concerns that dumping the water will heighten consumer apprehension about marine pollution, and TEPCO has said it will not release the water unless it obtains consent from the locals.
The company plans to treat water pumped up through 42 of its wells at a water treatment facility at the plant. After treatment, the water will be temporarily stored in tanks to check whether the amount of radioactive materials left in it is within levels deemed safe for release into the sea.
According to TEPCO, the amount of radioactive water at the complex is believed to be increasing by some 350 tons every day as fresh, untainted groundwater is seeping into reactor buildings and mixing with toxic water generated in the process of cooling the reactors that suffered meltdowns in the 2011 nuclear disaster.
Separately, TEPCO is running a groundwater bypass that is aimed at pumping up untainted groundwater before it mixes with radioactive water. Since the earthquake- and tsunami-triggered disaster, the operator has dumped such water into the Pacific numerous times after confirming its safety.
Source: Mainichi
http://mainichi.jp/english/english/newsselect/news/20150121p2g00m0dm071000c.html
Two workers die in accidents at Fukushima No. 1 and No. 2 plants
Jan 20, 2015
Two workers died Tuesday in separate incidents at the Fukushima No. 1 power plant and the nearby No. 2 complex.
The fatality at No. 1 was first there since March, although there has been a rise in the number of industrial accidents at the site as Tokyo Electric Power Co. stepped up cleanup efforts and brought in more workers.
Tepco has said at least 40 workers were involved in accidents at No. 1 from last April to November, prompting labor inspectors last week to call for thorough preventive measures.
The utility has routinely pledged to improve work conditions at the site.
A 55-year-old worker at No. 1 fell into a 10-meter-high water tank during inspections Monday. He was taken to a hospital but was confirmed dead in the early hours of Tuesday.
Later, a worker in his 40s at the No. 2 plant, which escaped severe damage in the 2011 earthquake and tsunami, died after equipment fell on him.
In a statement, Akira Ono, manager of the No. 1 plant, expressed sorrow for the death of the first worker, who was not named but was identified as an employee of construction company Hazama Ando Corp.
“We are deeply sorry for the death of the worker and express our deepest condolences to the family,” Ono said. “We promise to implement measures to ensure that such tragedy does not occur again.”
Hazama Ando had no immediate comment.
The number of accidents at Fukushima No. 1 has almost doubled this fiscal year to 55. The increase came as Tepco ramped up cleanup efforts and doubled the number of workers at the site to nearly 7,000.
In March, a worker died after being buried in gravel while digging a ditch.
Tepco has been widely criticized for its handling of the cleanup. Until last year it struggled to contain leaks of radioactive water from hastily built tanks at the site, and it has repeatedly promised to improve working conditions.
Most workers inside the plant are contract laborers hired by multiple layers of construction companies. Reporters in 2013 revealed widespread labor abuses, including workers who said their pay was skimmed and that there was little scrutiny of working conditions.
“It’s not just the number of accidents that has been on the rise. It’s the serious cases, including deaths and serious injuries that have risen,” said Katsuyoshi Ito, a local labor inspector overseeing Fukushima No. 1. “We have asked Tepco to improve the situation.”
Source: Japan Times
Other Sources:
http://www.tepco.co.jp/en/press/corp-com/release/2015/1247513_6844.html
http://www.tepco.co.jp/en/press/corp-com/release/2015/1247504_6844.html
http://mainichi.jp/english/english/newsselect/news/20150120p2g00m0dm064000c.html
Dying Pacific Ocean?
Monday, January 19, 2015
Marine defaunation: Animal loss in the global ocean.
Science 16 January 2015: Vol. 347 no. 6219
DOI: 10.1126/science.1255641 Review
Douglas J. McCauley Malin L. Pinsky Stephen R. Palumbi James A. Estes Francis H. Joyce Robert R. Warner
[excerpted] Wildlife populations in the oceans have been badly damaged by human activity…. Human dependency on marine wildlife and the linked fate of marine and terrestrial fauna necessitate that we act quickly to slow the advance of marine defaunation….
Three lessons emerge when comparing the marine and terrestrial defaunation experiences:
- today’s low rates of marine extinction may be the prelude to a major extinction pulse, similar to that observed on land during the industrial revolution, as the footprint of human ocean use widens;
- effectively slowing ocean defaunation requires both protected areas and careful management of the intervening ocean matrix; and
- the terrestrial experience and current trends in ocean use suggest that habitat destruction is likely to become an increasingly dominant threat to ocean wildlife over the next 150 years.[end excerpt]
Ocean Releases
[Majia writes] Consensus holds that Fukushima constitutes the greatest radiological release into the ocean ever to occur. According to Woods Hole Oceanographic Institution in Massachusetts, levels of radioactive cesium reached more than 100,000 becquerels per cubic meter in early April of 2011.[i] The World Nuclear Association suggests that 169 Petabecquerels of Iodine-131 equivalent were releases into the ocean from Cesium-137, Cesium-134, and Iodine-131from March 26 to September 30th.[ii] This figure does not include March releases into the atmosphere, which the World Nuclear Association calculates at 1020 petabecquerels from March 12 to March 31, 011. The French Institute for Radiological Protection and Nuclear Safety (IRSN) described Fukushima as the world’s worst nuclear contamination event ever for the ocean,[iii] reporting that from March 21st to mid-July 27, 27.1 petabecquerels of cesium-137 contaminated the ocean. One peta becquerel is equivalent to a million billion becquerels, or 10^15. [iv]
Atmospheric and direct ocean releases occurring as contaminated water spilled from reactors into the ocean caused radionuclide levels to spike offshore. Woods Hole scientist Ken Buessler revealed (12/12/2011) that Fukushima cesium-137 radiation in the sea near the plant peaked in April 2011 at 50 million times above normal levels (http://www.forbes.com/sites/jeffmcmahon/2011/12/12/fukushima-ocean-radiation-was-50-million-times-above-normal-but-no-threat-scientists/).
In a separate interview with Straight on October 28, 2011, Ken Buesseler stated that Fukushima was by far the greatest accidental release of radiation into ocean waters, the magnitude of which in April 2011 was over one hundred times Chernobyl’s contamination of the Black Sea.[v]
These comments reflect concerns based on ocean emissions during the first few months of the disaster. Ocean contamination did not however end in the first months of the disaster. The releases of radioactive water from the plant into the ocean have been, in this writer’s opinion, ongoing because of the need for continuous cooling of melted reactor corium and the inability to effectively de-contaminate cooling water.
Reactors 1 through 3 have been continuously cooled since March of 2011 with water injections. The World Nuclear Association reports that by the end of March 2011 all water storage tanks – the condenser units and condensate tanks – around units 1 through 4 were full of contaminated water pumped from the buildings.[vi] Tepco built a wastewater treatment facility to decontaminate the water but has struggled with decontamination and storage given the volume of water being pumped into the reactor buildings and the level of contamination. During the summer of 2011 Tepco installed concrete panels designed to seal water intakes of units 1 through 4 in order to prevent contaminated water from reaching the ocean. In October 2011, Tepco installed a steel water shield wall between the units and the ocean.[vii]
Yet, despite these efforts ocean contamination has continued because the site is literally saturated from the ongoing water injections. In 2012, Tepco reported water injections as follows: five tons per hour at Unit 1reactor; seven tons per hour at unit 2; seven tons per hour at unit 3.[viii] No information was provided about any water injections into unit 4 or the common spent fuel pool. At 456 tons a day of water going into the units, we can expect substantial ongoing leakage into the ocean. In November of 2011,Tepco admitted that its filtration system at the plant dumped more 11,000 tons of water contaminated with cesium 134, 137, and Iodine 131 into the sea.[ix] Tepco stated that it had been spraying about 70 tons of water around the Daiichi compound a day since early October and that water in some trenches measured at 10,000 millisieverts an hour, which is 10 sieverts an hour, a fatal dose.[x]
Ken Buesseler speaking in March 2012, described the data from his international research cruise off Japan that took place in June 2011:
Despite the announcement in December that operators of the power plant had achieved cold shut down, we know they are still using tons of water to cool the reactors and that not all the water has been collected or treated. As a result, the ground around the site is like a dirty sponge, saturated with contaminated water that is leaking into the ocean. He noted that other scientists had confirmed his 2011 findings of radiation levels 400 miles offshore Japan. He pointed out that little was known about radiation levels at seafloor levels but evidence exists that marine sediments are collecting radioactive contamination at higher concentrations than in the water. He said that little information was available about the radiation levels of groundwater.
He tells the public that information about the extent of releases of contaminated water are lacking:
Other measurements show trends that are more worrisome. Levels of radioactivity found in fish are not decreasing and there appear to be hot spots on the seafloor that are not well mapped. There is also little agreement on exactly how much radioactivity was released or even whether the fires and explosions at the power plant resulted in more radioactive fallout to the ocean than did direct releases of radioactivity caused by dumping water on the reactors to keep them cool.[xi] The Mainichi reported on April 3, 2012 that “Cesium up to 100 times levels before disaster found in plankton far off nuke plant” and that the “high concentration of cesium, which is believed to derive from the Fukushima No. 1 Nuclear Power Plant, suggests that radioactive substances that have leaked from the complex are spreading extensively in the sea.” http://mdn.mainichi.jp/mdnnews/news/20120403p2a00m0na009000c.html
Cesium-134 deposits in marine snow gathered 2000 kilomters away from the plant at depths of 5000 meters measuring 1,200 Becquerels per kilogram indicate that radiation contamination from Fukushima spread far and wide.
Lack of certainty about the extent of initial and ongoing atmospheric and ocean releases of radiation from the plant complicates extrapolations of effects. Tepco has provided no concrete information about the extent of damage to the nuclear fuel in the reactors and pools. Mr. Yastel Yamada, a retired engineer and founder of the volunteer Fukushima Skilled Veterans Corps commented that the fuel from the reactors may possibly be in powder form.[xii]
The radiation contamination of the Pacific will be an ongoing problem. One study that modeled dilution declines of Cesium-137 published in Environmental Research Letters predicted that after seven years the “total peak radioactivity levels would still be about twice the pre-Fukushima values” off the coastal waters of North America”[xiii]. That study did not factor in ongoing contamination.
The risks from contaminated ocean water are not restricted to marine and coastal life. Long-lasting radioactive isotopes, such as Cesium-137 and Plutonium-239, will bio-accumulate in marine life in the same fashion that mercury bio-accumulates currently. Marine animals at the top of the food chain and birds that feed on marine life will become highly contaminated radioactively. The Canadian Museum of Nature notes that orcas are often considered toxic waste when they die based on their high toxicity.[xiv]
Furthermore, contaminants in the ocean do not necessarily stay in the ocean….
http://majiasblog.blogspot.com/2012/09/compromised-oceans-mean-compromised.html
The Pacific Ocean was imperiled before Fukushima: what have we wrought?
Pacific Ocean tipping points? http://majiasblog.blogspot.com/2014/11/pacific-ocean-tipping-points.html
Bioaccumulation: Cesium is One Among the 1000 Radi…
ENDNOTES
[i] Cited Hiroko Tabuchi. Fears Accompany Fishermen in Japanese Disaster Region The New York Times (2012, June 25): http://www.nytimes.com/2012/06/26/world/asia/fears-accompany-fishermen-in-japanese-disaster-region.html?nl=todaysheadlines&emc=edit_th_20120626
[ii] World Nuclear Association Fukushima Accident (2012, September last update), http://www.world-nuclear.org/info/fukushima_accident_inf129.html
[iii] Fukushima nuclear pollution in sea was world’s worst: French institute. Japan Today Oct. 28, 2011 – http://www.japantoday.com/category/national/view/fukushima-nuclear-pollution-in-sea-was-worlds-worst-french-institute
[iv] “Fukushima Disaster Produces World’s Worst Nuclear Sea Pollution. The Maritime Excective (2011, October 28) http://www.maritime-executive.com/article/fukushima-disaster-produces-world-s-worst-nuclear-sea-pollution.
[v] Alex Roslin http://www.straight.com/article-491941/vancouver/what-are-officials-hiding-about-fukushima?page=0%2C2
[vi] World Nuclear Association Fukushima Accident (2012, September last update), http://www.world-nuclear.org/info/fukushima_accident_inf129.html
[vii] World Nuclear Association Fukushima Accident (2012, September last update), http://www.world-nuclear.org/info/fukushima_accident_inf129.html
[viii] Sep 1 2012 TEPCO reports drop in water injection rate at N-plant. Yomiuri (2012, Sep 1), http://www.yomiuri.co.jp/dy/national/T120831004812.htm
[ix] Robert Mackey and Ravi Somaiya (November 1, 2011) 14 Japanese Official Drinks Water From Fukushima Reactor Buildings. The New York Times By ROBERT MACKEY and RAVI SOMAIYA http://thelede.blogs.nytimes.com/2011/11/01/japanese-official-drinks-water-from-fukushima-reactor-buildings/
[x] Robert Mackey and Ravi Somaiya (November 1, 2011) 14 Japanese Official Drinks Water From Fukushima Reactor Buildings. The New York Times By ROBERT MACKEY and RAVI SOMAIYA http://thelede.blogs.nytimes.com/2011/11/01/japanese-official-drinks-water-from-fukushima-reactor-buildings/
[xi] Ken Buessler What Fukushima accident did to the ocean By Ken Buesseler, Special to CNN March 11, 2012 http://www.cnn.com/2012/03/10/opinion/buesseler-fukushima-ocean/index.html
[xii] “I Don’t Know What Would Happen”: Fuel from Fukushima reactors may be powder — If so, work almost impossible (AUDIO). Enenews (2012, ) http://enenews.com/dont-happen-future-fuel-fukushima-reactors-be-powder-work-almost-impossible-video/comment-page-1#comment-291586Mr. Yastel Yamada, a retired engineer and founder of the Fukushima Skilled Veterans Corps
Uploaded by: OccupyUkiah Filmed: July 30, 2012 Uploaded on: Sept. 27, 2012
[xiii] Erik Behrens1, Franziska U Schwarzkopf1, Joke F Lübbecke2 and Claus W Böning1 Model simulations on the long-term dispersal of 137Cs released into the Pacific Ocean off Fukushima Erik Behrens et al 2012 Environ. Res. Lett. 7 034004
[xiv] Canadian Museum of Nature. Diving in (2011, March 3), of http://nature.ca/explore/di-ef/wcef_tfw_e.cfm.
Source: Majia’s Blog
http://majiasblog.blogspot.fr/2015/01/dying-pacific-ocean.html
Plenty of work for nuclear clean-up firms
U.S. nuclear cleanup specialist goes from Hanford to Fukushima LEDGER INQUIRER BY ROB HOTAKAINENMcClatchy Washington BureauJanuary 18, 2015 “……After working at the Hanford nuclear site in Washington state for 12 years, he’s helping to lead the cleanup at the Fukushima Daiichi nuclear plant, which melted down in March 2011……… it’s the work that drives him, using American technology to help the Japanese people deal with the catastrophe at Fukushima.
McCormick works for Kurion Inc., a company headquartered in Irvine, Calif., that focuses on managing nuclear and hazardous waste. The company built a mobile processing system that’s helping to remove radioactive strontium from 400,000 tons of contaminated water stored near the Fukushima Daiichi plant. McCormick said the company was the only U.S. firm to win a contract from the Tokyo Electric Power Co., which is overseeing the entire cleanup project.
Choosing to do the initial work in a nuclear-free environment, Kurion designed and built the treatment system in Washington state’s Tri-Cities area and shipped it to Japan on a cargo plane. It arrived in July and began operating in October, after a series of tests.
“Our contract was to build it in America, using American nuclear standards that are equivalent to the Japanese standards,” McCormick said.
As McCormick does his work, he’s avoiding the public debate over whether Japan should restart some of the 48 nuclear plants that were shut down after the Fukushima disaster………
a recent poll found that most Japanese citizens want the plants to remain closed, fearing another catastrophe.
“We don’t even know the final disposal place of the Fukushima waste. We should discuss this after we decide where to dispose of the waste,” said Hatsuhiko Aoki, an artist from Gifu Prefecture. Yoshitaka Mukohara, the president of a publishing company and the secretary-general of the Anti-Nuclear Kagoshima Network, said the Abe administration was acting irresponsibly. “There are some places that are not decontaminated, but the government is sending people back,” Mukohara said. “What they are doing is acting like nothing ever happened.”
McCormick has no interest in weighing in on the controversy.
“It’s really a decision that the Japanese people have to make, in terms of how they get their energy,” McCormick said. “I’ve been focused on the cleanup.”
But McCormick said part of the work in Japan would involve building public support for the cleanup and convincing people that it was a long-term project.
It’s a skill he used at Hanford, lobbying Congress to include cleanup money in annual appropriation bills.
“The cleanup of Fukushima, if you compare it to Hanford, is on the same scale: tens of billions of dollars,” McCormick said. “And it’s going to take many decades to complete.” http://www.ledger-enquirer.com/2015/01/18/3520793/us-nuclear-cleanup-specialist.html
All 2014 Fukushima rice cleared radiation tests, thanks “supposedly” to fertilizer
Jan 18, 2015
All 2014 Fukushima rice cleared radiation tests, thanks to fertilizer
Fukushima Minpo
For the first time since the triple meltdown at the Fukushima No. 1 plant throttled the agriculture-reliant prefecture, all rice produced there last year cleared the required radiation tests.
The Fukushima Prefectural Government last year checked every bag of rice produced in the prefecture — some 10.75 million bags — based on the Food Sanitation Law, which bans the sale of rice radiating more than 100 becquerels of cesium per kilogram.
The tests found all bags checked from January 2014 through December 2014 had lower than standard radiation levels, in contrast with those tested in 2012 and 2013, which had a small percentage of rice unfit for shipment, the prefectural government said.
Officials said they hope the results will help raise consumer confidence in Fukushima rice, which was devastated by the nuclear disaster. Experts attribute the achievement to efforts to prevent cesium from entering rice fields during cultivation, and to the use of fertilizers based on potassium chloride, which prevents the grain from absorbing the isotope.
The tests, introduced in 2012, screen the bags on a conveyer belt. Bags sniffed out by the initial screening are tested further with precision instruments. Bags over the 100-becquerel cesium limit are discarded.
In 2012, a total of 10.35 million bags were tested and 71, or 0.0007 percent, failed.
In 2013, the failure rate was reduced to just 28 bags, or 0.0003 percent of the 11 million bags tested.
In 2014, 29 bags were flagged as suspicious by initial screening but later found to be below the cesium threshold.
Given that 867 bags were weeded out by initial scans in 2012, the 2014 results represent a major advance, they said.
To date, the rice farmers, prefectural government and local JA cooperatives have made joint efforts to promote fertilizers based on potassium chloride, which prevents rice from absorbing cesium.
The prefecture is shouldering all costs for the fertilizers. In 2014, it distributed ¥1.61 billion in subsidies to farmers to buy enough potassium chloride-based fertilizer to treat 68,000 hectares of paddies.
Research has shown putting potassium in soil prevents rice from taking in cesium. But it is important to keep the potassium levels high while rice is young. So farmers have been told to keep adding it.
Keisuke Nemoto, a professor at the University of Tokyo’s Laboratory of Crop Ecology and Morphology who is studying how cesium gets into rice, said the 2014 test results represent the fruit of the joint effort.
But Nemoto said his experiments showed that rice grown without potassium-based fertilizers still breaks the 100-becquerel cesium limit.
“Unless farmers keep adding potassium to soil every year, the chemical’s density in soil will decline and rice could start absorbing cesium again,” he warned.
This section, appearing every third Monday, focuses on topics and issues covered by the Fukushima Minpo, the largest newspaper in Fukushima Prefecture. The original article was published Jan. 9.
Source: Japan Times
Comments from Marushka France
STEP BACK AND READ, ANALYZE and CONSIDER:
1) Agricultural practices such as these, adding lime, potassium, phosphorus and/or organic materials to contaminated soils is… I repeat IS…. appropriate kind of measure to take!!
2) Testing rice with the appropriate equiment is very important.
Measuring the rice from outside a bag does not tell us the alpha and beta IN THE FOOD, very important that HOW food is tested and with what equipment… Very important
3) because Internal exposure – food and water — is 1,000X worse than external, according to WHO
4) Testing agricultural lands , treating with organic soils amendments after assessing the level of radioisotope contamination and the needs of the soils – and making that public information – is critical… for saving our planet, our food and water supplies and our lives.
It is the only way to restore confidence – in government and in media…. We have been lied to our entire lives. Only honest and full disclosure can restore and repair relationships.
Government . People . Journalism…
Reassess ourselves, reassess for one major reason
“Environmental problems…. contamination from multiple human activities like oil, gas, nuclear, petrochemicals, petroleum based agriculture
Poison, unbalanced, unsus-ainable, all of them
Incorporating an application of organic and mineral fertilizers reduces the levels of Cs137 and Sr-90 accumulation three- to fivefold in herbage grown in mineral soils. Such radical treatment of hayfields on peat soils sharply reduces Cs-137, but is less effective for Sr-90.
5) Owing to degradation of cultivated hayfields, repeated grassland renovation with an application of fertilizers is needed every 3 to 6 years.
As noted above, radiation protection measures are effectively applied in large stateowned and collective farms. In small privatesector households and farms, which in Belarus account for more than 50% of agricultural production, these measures are incidental.
Generally for each cow on a private Belarus farm
there is about 1 hectare of hayfield and improved pasture. This is not sufficient to sustain the animal so the farmers have to get hay
from grassy forest glades and unarable lands that are contaminated with higher levels of radioactivity than cultivated hayfields.
Thus a significant number of settlements, even 23 years since the catastrophe, had inadequate radiation protection for agricultural production.
There are more than 300 such settlements each in Belarus and Ukraine, and more than 150 in Russia (Kashparov et al., 2005). page 312 “Chernobyl: Consequences of the Catastrophe for People and the Environment” by Alexey Yablokov, Vasily Nesterenko and Alexey Nesterenko
NY Academy of Sciences, Volume 1181, 2009.
5,000 Slavic language studies reviews, over 1,400 cited.
http://www.strahlentelex.de/Yablokov_Chernobyl_book.pdf
Hard copy now available at Greko Printing P:734.453.0341;
email:orders@grekoprinting.com
Japanese version available at Amazon.jp – Chapter 4 (parts12-15) have not been included, ‘too long’.
Japanese government gives up its plan to begin transporting radioactive wastes to interim storage sites
Ube : Gov’t to postpone moving radioactive waste to interim storage sites http://www.4-traders.com/UBE-INDUSTRIES-LTD-6491266/news/Ube–Govt-to-postpone-moving-radioactive-waste-to-interim-storage-sites-19704037/ 18 Jan 15 Environment Minister Yoshio Mochizuki said Friday the government has given up its plan to begin this month transporting radioactively contaminated soil and other waste, collected during decontamination work following the 2011 Fukushima nuclear crisis, to interim storage sites at nearby towns.
The government now aims to begin such transportation by March 11 this year on the fourth anniversary of the disaster at the Fukushima Daiichi nuclear power station, Environment Ministry officials said.
The delay was due to difficulties obtaining agreement from residents near the interim storage sites and local municipalities, the officials said.
Under the government plan, the radioactively contaminated waste will be kept in the interim facilities in the towns of Futaba and Okuma in Fukushima Prefecture and will be permanently disposed of outside the prefecture within 30 years, as requested by the Fukushima prefectural government in accepting the storage.
The site for final disposal of the radioactive waste has yet to be decided.
Meanwhile, Reconstruction Minister Wataru Takeshita offered an apology over the delay.
In October 2011, the government led by then Prime Minister Yoshihiko Noda released the target to begin the delivery of contaminated waste to interim storage sites in January 2015.
Robot technology for Fukushima nuclear clean-up operations
British robot maps radiation at Fukushima, Ft.com Tanya Powley, Manufacturing Correspondent , 18 Jan 15 A robot developed by a UK start-up is helping to locate hazardous radiation sources at the scene of the Fukushima disaster, the world’s worst nuclear accident since Chernobyl.
Createc, a small imaging company based in Cumbria, has developed camera technology called N-Visage for robots that can detect and draw a 3D map of high radiation locations that are too contaminated for human workers……..
Nuclear companies are turning to robotics as they look to deliver safer, faster and more cost-effective solutions for the £250bn worth of global nuclear decommissioning that is forecast to take place by 2030.
Hitachi-GE Nuclear Energy, which is leading the clean-up at Fukushima, deployed Createc’s N-Visage camera technology in stair-climbing robots to reach inaccessible areas deep inside the nuclear site. Fukushima was badly damaged by a tsunami in March 2011.
N-Visage is the only technology that has the right weight, speediness and capability for high radiation, said a spokesman for International Nuclear Services Japan. “N-Visage is very likely to be deployed not necessarily only at Fukushima but also at other nuclear facilities in Japan,” he said.
The N-Visage technology was first used at Britain’s Sellafield, western Europe’s largest nuclear waste site.
Operators at Fukushima are now using the N-Visage technology to understand where radioactive material is coming from inside damaged reactors and help plan clean-up strategies…….
Sylvain Du Tremblay, chief technical and engineering officer at Sellafield, believes the adoption of N-Visage at Fukushima shows the UK can lead in robotics technology for the nuclear industry. “We are using Sellafield facilities that are waiting to be dismantled to test and validate new technologies,” he said. http://www.ft.com/intl/cms/s/0/d2ca4690-85d9-11e4-a105-00144feabdc0.html#slide0
Japanese government mulls putting the nuclear financial burden on to consumers, as in UK
Eiji Oguma: Planned protective measures show real cost of nuclear power Asahi Shimbun January 15, 2015 The industry ministry is discussing a new protective measure for nuclear power plants: the contract for difference (CfD) system.
The CfD, introduced in Britain, guarantees that electricity will be purchased at a fixed rate over a certain period of time.
The purchase price is calculated in consideration of the plant’s total cost, including future expenses, such as those for disposing of spent nuclear fuel and decommissioning reactors.
An agreement has been reached to apply the system to one nuclear power plant in Britain, with the reference purchase price set at 8.95 pence (around 15 yen or $0.13) per kilowatt-hour. That is higher than the corresponding price for a land-based wind farm, and comes with a longer guarantee period of 35 years.
A nuclear plant requires so much initial investment that there is no guarantee the cost will be recovered under the market economy. That is why the CfD and other protective measures for nuclear plants are being discussed in Japan ahead of the liberalization of the power retail market slated for 2016.
But various objections have been raised to the introduction of such measures.
First, the purchase price will likely be reflected in electricity rates, increasing the financial burden on consumers……….
Second, the decision process is not transparent………http://ajw.asahi.com/article/views/column/AJ201501150006
Record high radiation in Fukushima waste water -Cesium up 7,500% this week
Huge radiation spike detected at Fukushima plant — Multiple records set near workers trying to stop nuclear waste flowing into ocean — Cesium up 7,500% this week http://enenews.com/huge-radiation-spike-detected-fukushima-plant-record-levels-workers-attempting-stop-radioactive-material-flowing-ocean-cesium-7500-week?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+ENENews+%28Energy+News%29
Tokyo Electric Power Company Press Release, January 12, 2015 (Google Translation):
For pumping water groundwater observation hole No.1-12 taken on January 12, cesium 134, cesium 137, cobalt 60 and total beta value is higher as compared with the previous value, the maximum value previously is detected.
Cesium-134: 140 Bq/L [~7,500% above Jan. 5 level; new record high]- Cesium-137: 470 Bq/L [~7,500% above Jan. 5 level; new record high]
- Cobalt-60: 1.9 Bq/L [Quadruple previous record high set in 2013]
- β (all beta): 15,000 Bq/L [~6,000% above Jan. 8 level; ~1,300% above previous record high]
Note that observation hole No. 1-12 is near the Unit 2 trench which is filled with thousands of tons of highly radioactive water. Tepco is attempting to seal the trench, but has failed to do so. According to page 2 of Tepco’s presentation to Japan’s Nuclear Regulatory Authority on Dec. 26, 2014 the only part of the trench that has been blocked is right next to No. 1-12 (see map on right).
Neutron radiation from Fukushima has been grossly underestimated
Fukushima Released 13,000,000,000 Times More Neutrons than Initially Estimated http://www.globalresearch.ca/fukushima-released-13000000000-times-more-neutrons-than-initially-estimated/5424619
“Neutron radiation is the most severe and dangerous radiation” known to mankind January 14, 2015
We estimated a lower limit of 5.2 × 1021 slow neutrons m–2 sec–1 [m–2 sec–1 = per sq. meter per second] were emitted from the nuclear fuel rods to the sea water injected in the reactors
- Priyadarshi et al. (2011) have estimated a release amount of 4 × 1011 slow neutrons m–2. The large difference with our estimation [13,000,000,000 times higher] comes from the intrinsic limit of the box model study by Priyadarshi et al.
- Our model directly estimates the amount of material released from the reactor core
- The estimated… number of neutron represent a lower limit of the amount of radiation emitted from the nuclear reactors… These values can be used as a proxy to the total amount of radiation emitted since the melt down
- [The authors] express their gratitude to… the Japanese Ministry of Environment…Ministry of Education, Culture, Sports, and Technology (MEXT)… [and] the Cabinet Office
Priyadarshi et al.: Evidence of neutron leakage at the Fukushima nuclear plant… Despite the obvious implication for human health… there are no quantitative estimates of the neutron flux leakage… [T]ons of seawater were used as a coolant… A consequence is that salts and minerals present in seawater become radioactive by reaction with thermal neutrons… We calculated the total number of neutrons that leaked from the reactor core [and] estimate that a total of 4 × 1011 neutrons per m2 were released before March 20.
Office of Homeland Security & Emergency Coordination: Neutron radiation is a kind of ionizing radiation which consists of free neutrons… Neutrons readily pass through most material, but interact enough to cause biological damage. Neutron radiation is considered to be the most severe and dangerous radiation available. Neutrons can travel great distances…
1 This Month
PLEASE OPPOSE HR 8255 AND S.3639 – bills would accelerate satellite deployment, with no environmental review or safeguards – https://ncstd5li.quorum.us/campaign/169331/
To see nuclear-related stories in greater depth and intensity – go to https://nuclearinformation.wordpress.com
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