Showing posts with label Japanese earthquake. Show all posts
Showing posts with label Japanese earthquake. Show all posts

Friday, February 17, 2012

Japanese Government: No Plans to Re-Start Fukushima Daini

Earlier this week, a Japanese government official said that there were no plans to restart any of the reactors at the Fukushima Daini nuclear power plant.

Fukushima Daini was a textbook example of how things can go right at a nuclear power plant in the face of an extreme event, something we noted at our SafetyFirst microsite in December:
When the earthquake struck, the Fukushima Daini facility automatically shut down safely as designed. However, it went into a state of emergency following the tsunami when water damage disrupted heat removal systems in three of the four reactors.

TEPCO reactor operators were able to quickly bring reactor 3, which had retained its heat removal function, into stable condition in a matter of hours. Meanwhile, other employees worked feverishly around-the-clock to reestablish heat removal capability in the other three reactors and finished stabilizing them by March 15.

A key distinction between the post-disaster conditions at Fukushima Daini and Fukushima Daiichi was that off-site power was available at the Daini facility, whereas the Daiichi plant suffered a complete loss of electricity, including backup generators and, eventually, emergency batteries needed to power reactor cooling systems. Fukushima Daini workers were able to tap into electricity from a 500-kilovolt-transmission line – a key lifeline – to power a water injection system that helped cool the reactors as they shut down.

Friday, December 23, 2011

Dr. Robert Emery Disputes Joe Mangano's Findings on Radiation and Fukushima

Just a few minutes ago, I received the following statement from Dr. Robert Emery, Vice President for Safety, Health, Environment & Risk Management at the University of Texas Health Science Center at Houston concerning Dr. Joseph Mangano's recent study on fallout from the Fukushima Daiichi nuclear energy facility reaching the U.S.
“We aggressively monitored for the presence of environmental radioactivity in Houston following the Fukushima event and worked closely with local public health authorities in the event we detected any threat to public health. We never detected any elevated radiation levels. I don’t see any evidence to supports the assertion made by this report that the additional 484 deaths in Houston in 2011 could in any way be related to radioactivity from Fukushima - we never detected any.”

"Moreover the study bases its conclusion on the comparison of data from deaths in the U.S. in 2010 and 2011. Using this method you really can’t determine the specific cause of any increase in deaths over the two years. Perhaps the most important question is: what did the 148,395 U.S. citizens die of in 2010, the year before the Japanese earthquake? Most likely the overwhelming causes were heart disease, cancer, and stroke. I believe this is likely the case in 2011 as well. I also believe our finite public health resources are better spent on the issues we know are causing people to die rather than being diverted to explore hypothetical projections"
It ought to be clear by now that Mangano's claims are being broadly discredited by the wider scientific community. Click here, here and here for our recent posts on how independent 3rd party voices are warning the public to disregard Mangano's research.

Wednesday, December 21, 2011

Joe Mangano's Credibility Takes Another Body Blow

This time, the sledgehammer is delivered courtesy of Barbara Feder Ostrov's Health Journalism Blog. Like plenty of other folks, she was shocked at Joe Mangano's claims -- ones that he backed off from when under questioning from MedPage Today -- so she talked to some long-time medical journalists.

Here's what Ivan Oransky of Reuters Health had to say about Mangano's research:
I do use impact factor to judge journals, while accepting that it's an imperfect measure that is used in all sorts of inappropriate ways (and, for the sake of full disclosure, is a Thomson Scientific product, as in Thomson Reuters). I find it helpful to rank journals within a particular specialty.

[...]

I looked up the journal in question, and it's actually ranked 45th out of 58 in the Health Policy and Services category (in the social sciences rankings) and 59th out of 72 in the Health Care Sciences & Services category (in the science rankings).
Here's Gary Schwitzer of Health News Review:
Journalists who live on a steady diet of journal articles almost by definition promote a rose-colored view of progress in research if they don't grasp and convey the publication bias in many journals for positive findings. Negative or null findings may not be viewed as sexy enough. Or they may be squelched prior to submission. While perhaps not a factor in this one case, it nonetheless drives home the point to journalists about the need to critically evaluate studies.
I'm afraid I have more bad news for Mangano. Who's going to tell Christie Brinkley?

Mike Moyer of Scientific American Debunks Joe Mangano Again

Mike Moyer, the writer at Scientific American who so expertly debunked Joe Mangano's "research" in June, had a chance to read the latest Mangano study that claimed 14,000 deaths in the U.S. were linked to fallout from Fukushima.

The verdict: it's just another flawed study.
No attempt is made at providing systematic error estimates, or error estimates of any kind. No attempt is made to catalog any biases that may have crept into the analysis, though a cursory look finds biases a-plenty (the authors are anti-nuclear activists unaffiliated with any research institution). The analysis assumes that the plume arrived on U.S. shores, spread everywhere, instantly, and started killing people immediately. It assumes that the “excess” deaths after March 20 are a real signal, not just a statistical aberration, and that every one of them is due to Fukushima radiation.
Of course, as we pointed out yesterday, Mangano was forced to back off that last claim when pressed by a reporter from MedPage Today.

Back to Moyer ...
The publication of such sloppy, agenda-driven work is a shame. Certainly radiation from Fukushima is dangerous, and could very well lead to negative health effects—even across the Pacific. The world needs to have a serious discussion about what role nuclear power should play in a power-hungry post-Fukushima world. But serious, informed, fact-based debate is a difficult enough goal to achieve without having to shout above noise like this.
Amen, brother.

Monday, December 19, 2011

Joseph Mangano Contradicts His Own Press Release on Fukushima Research

Our readers will recall that on Friday afternoon that we were alerted to the impending release of a study authored by Joseph Mangano and Dr. Janette Sherman on the alleged effects of radioactive fallout from the Fukushima Daiichi incident here in the U.S.

Earlier today, Mangano and company held a teleconference to announce their findings:
An estimated 14,000 excess deaths in the United States are linked to the radioactive fallout from the disaster at the Fukushima nuclear reactors in Japan, according to a major new article in the December 2011 edition of the International Journal of Health Services.
Sounds scary, doesn't it? Then again, only a few hours later, Mangano admitted in an interview with MedPage Today that the results of his research weren't quite as definitive as his press release would have led folks to believe:
But he (Managno) told MedPage Today that the researchers can't rule out factors other than the Fukushima radiation that might have accounted for the excess.

"There are probably a variety of factors that could be linked to this excess of 14,000 deaths," he said.
Huh? In any case, it's clear that the scientific community doesn't think terribly much of Mangano and his study. As luck would have it, MedPage Today also talked to Richard L. Morin, PhD, of the Mayo Clinic in Jacksonville, Florida:
On the contrary, any link between the deaths and the radiation released by the reactors is "very, very unlikely" simply because the levels are low, according to Richard Morin, PhD, of the Mayo Clinic in Jacksonville, Fla.

Morin told MedPage Today that such an acute effect would be unlikely, unless radiation levels were four or five orders of magnitude higher than those reported by Mangano and Sherman, and the whole body of the victim was exposed.

Typically, he said, the effect of low-level ionizing radiation doesn't appear until years after the exposure.

Morin, who is chair of the American College of Radiology's safety committee, said an earlier public report by the authors on the same issue -- preceding the journal article -- "has not been taken seriously by the scientific community."

He added it's important to remember that "association doesn't imply causation.
It's been more than six years since I wrote my first post on Mangano's antics. As I wrote at the time, eight states have investigated Mangano's claims and all eight refused to validate them. One wonders why reporters even bother to talk to him anymore when his work has been so thoroughly debunked.

Friday, December 16, 2011

Note to Reporters: Be Sure to Fact Check Joseph Mangano, Janette Sherman and Robert Alvarez

Late this afternoon, it came to our attention that Joseph Mangano, Janette Sherman and Robert Alvarez will be holding a news conference on Monday morning (December 19) concerning a new study they've done about how Americans might be affected by radiation released into the atmosphere from the Fukushima Daiichi nuclear facility in Japan.

While we haven't seen the article as of yet and can't comment on it, our readers should know that reliable third parties have reviewed the work of all three authors in the past and found it to be fatally flawed.

Here's what the New Jersey Commission on Radiation Protection had to say about Mangano's "Tooth Fairy" project:
The Commission is of the opinion that "Radioactive Strontium-90 in Baby Teeth of New Jersey Children and the Link with Cancer: A Special Report," is a flawed report, with substantial errors in methodology and invalid statistics. As a result, any information gathered through this project would not stand up to the scrutiny of the scientific community. There is also no evidence to support the allegation that the State of New Jersey has a problem with the release of Sr-90 into the environment from nuclear generating plants: more than 30 years of environmental monitoring data refute this.
In June, Michael Moyer of Scientific American had this to say about a study by Mangano and Sherman on radiation and Fukushima:
[A] check reveals that the authors’ statistical claims are critically flawed—if not deliberate mistruths.

[...]

Only by explicitly excluding data from January and February were Sherman and Mangano able to froth up their specious statistical scaremongering.

This is not to say that the radiation from Fukushima is not dangerous, nor that we shouldn’t closely monitor its potential to spread (we should). But picking only the data that suits your analysis isn’t science—it’s politics. Beware those who would confuse the latter with the former.
As for Mr. Alvarez, the Nuclear Regulatory Commission had this to say about one of his papers on the safety of spent fuel pools:
The NRC staff has reviewed the paper, "Reducing the Hazards from Stored Spent Power- Reactor Fuel in the United States," April 21, 2003, Robert Alvarez, et al., (published in Science and Global Security, spring 2003) and concludes that it fails to make the case for its central recommendation.

[...]

Our review of the paper indicates that it is a deficient study of the hazards associated with the storage of spent fuel. Many of the 114 cited references are NRC studies or NRC contracted studies conducted for a variety of purposes, and most are not applicable to terrorist attacks.
Members of the press should take care to challenge the findings announced on Monday, and to be sure to contact NEI or other third party experts to review the validity of the study, rather than simply rebroadcast its findings.

Monday, December 12, 2011

Weekly Japan Update

The Fukushima updates are moving to a weekly schedule beginning today and continuing each Monday. Additional updates will be issued as needed to cover developing events.

Japan: Full Decontamination Efforts Will Begin in March

December 12, 2011

Industry/Regulatory/Political

  • TEPCO said it will receive accident insurance from a Swiss company that will replace a consortium of insurers that will not renew its policies with the utility. TEPCO will pay about $258 million for a five-year policy, about 10 times the amount it paid to the consortium. The policy will cover claims related to Fukushima Daiichi.
  • Japan’s Environment Ministry said that a full-fledged effort to decontaminate areas with high radiation will not begin until at least March, as the ministry must receive permission from affected landowners and must acquire temporary sites at which to store contaminated soil.
  • Concentrations of cesium-137 in the ocean near Fukushima Daiichi peaked at 50 million times above normal, a study by the Woods Hole Oceanographic Society found. However, the study said that the radiation diluted rapidly and poses little or no danger to human and marine life.

Media Highlights

  • A USA TODAY/Gallup poll found that 70 percent of Americans have become more concerned about the safety of nuclear energy because of the accident at Fukushima Daiichi. The poll found that 44 percent favor building new facilities, down from 57 percent from the last poll taken before the accident.
  • The Mainichi Daily News wrote in an editorial that carrying out decontamination work as an international project will be beneficial to Japan and the rest of the world. “There is bound to be technology and expertise abroad that we do not have in Japan,” the editorial said. “If we are able to take advantage of them, the work will proceed more efficiently. In return, Japan should be able to pass on the knowledge and lessons learned from the Fukushima crisis to the rest of the world.”

New Products

  • An article on NEI’s Safety First website outlines the response to the March 11 earthquake at the Fukushima Daini plant and details three key lessons the plant operator learned from the experience.

Upcoming Meetings

  • The U.S. Nuclear Regulatory Commission will hold four public meetings this week to discuss with industry representatives proposals to implement individual recommendations from the NRC’s Japan near-term task force. Meeting agendas and further details on each meeting are available on a special NRC webpage.
  • The Senate Environment and Public Works Committee holds a hearing Dec. 15 titled “Review of the NRC’s Near-Term Task Force Recommendations for Enhancing Reactor Safety in the 21st Century."

Wednesday, December 7, 2011

Wednesday Update

From NEI’s Safety First web site:

Contaminated Water Leaks Into Ocean Near Fukushima

December 7, 2011

Industry/Regulatory/Political

  • Tokyo Electric Power Co., operator of the Fukushima Daiichi nuclear energy facility, said about 40 gallons of water containing radioactive strontium drained into the ocean following a leak in desalination equipment. TEPCO said it is likely to have little effect on the environment.
  • More rice shipments have been banned from a district of Fukushima City after discovery of contamination. Inspections found radioactive cesium above the government-set safety limit in rice from the Watari district and blocked shipments from farms located there. Bans were previously imposed on another district of Fukushima City and two districts of Date City.
  • Fukushima Prefecture will spray radiation-absorbing agents onto farmland and scrape off the topsoil in an effort to remove low levels of contamination. Workers also will remove tree bark in orchards and clean the trees with jets of water.
  • The lower house of Japan’s legislature has voted approval for nuclear cooperation agreements with Jordan, Russia, Vietnam and South Korea. The legislation, which is expected to clear the upper house, would permit Japan to export nuclear energy facilities and transfer related technology.

Media Highlights

  • The accident at the Fukushima Daiichi nuclear energy facility may have startled some in the U.S. industry, but no one in the industry was surprised the operator regained control of the reactors, Nuclear Regulatory Commission Chairman Gregory Jaczko said in a meeting with the media on Tuesday. New York Times writer Matt Wald reports in the Green blog.
  • The cost of nuclear energy in Japan is predicted to double, including government subsidies, the Mainichi Daily News reports. That would put it on a par with other thermal energy sources.
  • A producer of milk powder in Japan has recalled product manufactured shortly after the nuclear accident after traces of radioactive cesium were detected, Bloomberg News reports. The level of cesium in the powdered milk, used in baby formula, is within government safety limits and would not result in health effects.

Upcoming Events

  • Nuclear Regulatory Commission staff and stakeholders will discuss the post-Fukushima task force recommendations on protection of equipment during an extreme event and adding equipment to accommodate a multi-unit event in a public meeting Dec. 8.

This is the last of the thrice weekly Fukushima Updates. A weekly edition will be published each Monday starting December 12. Of course, we’ll resume more frequent updates if events warrant.

Monday, December 5, 2011

Monday Update

TEPCO Injects Nitrogen Into Reactors, Prepares for “Cold Shutdown Condition”

December 5, 2011

Plant Status

  • Tokyo Electric Power Co. has begun injecting nitrogen into the pressure vessels of Fukushima Daiichi reactors 1 through 3. The action will reduce any buildup of hydrogen in the reactors as TEPCO prepares to announce, as early as next week, its achievement of what the company calls a “cold shutdown condition.” A new “Ask the Expert” page on NEI’s Safety First website explains how and why TEPCO’s definition of the term differs from common industry usage.
  • TEPCO reported today that about 45 metric tons of water containing radioactive strontium leaked from desalination equipment at a water decontamination facility used to recycle cooling water at the Fukushima Daiichi site. Japan’s Nuclear and Industrial Safety Agency has ordered the company to investigate the causes and report on the impacts should any water reach the ocean and to take steps to prevent future leaks.

Industry/Regulatory/Political

  • TEPCO said Saturday it paid farmers and livestock workers about $500 million in compensation for loss of livelihood after the Fukushima accident. The company has so far paid about $1.2 billion to farmers and will pay another $96 million by the end of the year.

New Products

  • An article on NEI’s Safety First website describes how the Electric Power Research Institute is collaborating with global utility, regulatory, research and engineering entities on projects to gain a deeper understanding of lessons learned from Fukushima.

Media Highlights

  • The Japan Times reports on a government pilot project to test the effectiveness of its decontamination procedures in Okuma town near the Fukushima nuclear energy facility.
  • The Wall Street Journal notes that some mayors in Japan have been pushing for the restart of nuclear reactors that have been shut down for inspection after the Fukushima accident, as taxes levied on operating nuclear energy facilities have provided a source of revenue to local municipalities.

Friday, December 2, 2011

Friday Update

From NEI’s Safety First web site:

Industry Proposes Integrated Approach on Post-Fukushima Activities

December 2, 2011

Industry/Regulatory/Political

  • The industry on Dec. 1 urged the U.S. Nuclear Regulatory Commission staff to consider an integrated and flexible approach toward meeting the NRC’s Fukushima task force recommendations, arguing that this approach would result in faster, more efficient implementation of the most safety-significant recommendations. The industry advocated enhancing the post-9/11 concept of using portable equipment to address loss of all AC power and loss of ultimate heat sink from a variety of natural phenomena. This enhanced mitigation action—called a “diverse and flexible mitigation capability”—could be supplemented by regional response centers that could provide additional hardware and equipment to further extend coping capability should there be a longer-term loss of power or cooling capability.
  • Tokyo Electric Power Co. (TEPCO) today released its interim report on the March 11 accident at the Fukushima Daiichi nuclear energy facility, based on data and interviews with more than 250 workers since June. The report describes how a larger-than-expected tsunami knocked out all safety systems and led to fuel damage and the release of radiation.

New Products

  • A new employee profile on NEI’s Safety First website features Marty Wright, radiation protection senior engineer at the Diablo Canyon nuclear energy facility in California. Wright explains his daily duties, his work with state and federal agencies on monitoring, and initial monitoring results after the Fukushima accident.

Media Highlights

  • The Wall Street Journal reports that TEPCO’s latest analysis confirms the March 11 tsunami triggered the accident at the Fukushima Daiichi nuclear energy facility and that the plant met all earthquake safety standards. However, TEPCO acknowledged that many questions remain unanswered because continuing high radiation levels inside the facility, limiting extended access needed to complete a full assessment of the damage.

Wednesday, November 30, 2011

Wednesday Update

From NEI’s Safety First web site:

Japanese Government Increases Radiation Testing for Rice Crops

November 30, 2011


Industry/Regulatory/Political

  • Fukushima Prefecture is stepping up its testing of rice crops, now that more radioactive cesium has been found in harvested samples. Government officials measured twice the allowable radiation limit in rice from farms in Date City, about 30 miles from the Fukushima Daiichi nuclear energy facility. The prefectural government is expanding radiation testing to more than 2,300 nearby farms.
  • Researchers in Japan have created an academic society to provide recommendations for the removal of radioactive materials released by Fukushima Daiichi. Members of the society have backgrounds in nuclear energy, environmental restoration and other specialties.
  • Tokyo Electric Power Co., which operates the Fukushima Daiichi facility, forecasts that it will generate enough electricity over the winter to meet demand, with a small reserve margin. The utility warned that unplanned shutdowns of generating stations and rapid changes in temperature could affect continuity of supply.

New Products

  • Nuclear energy facilities on the East Coast weathered Hurricane Irene by thoroughly planning for the August storm. Details are in a new article posted this week on NEI’s Safety First website.


Media Highlights

Upcoming Events

  • Staff of the independent Nuclear Regulatory Commission will conduct its first meeting with stakeholders on strategies the agency is considering to address the recommendations of the near-term Fukushima task force. The meeting will be held Dec. 1 in the NRC’s Rockville, Md., offices. To view the meeting by webcast, visit http://video.nrc.gov.

Monday, November 28, 2011

Monday Update

From NEI’s Safety First web site:

Fukushima Town to Test Waste Reduction System

November 28, 2011

Industry/Regulatory/Political

  • The town of Hirono in Fukushima prefecture plans to test a system that would reduce the volume of radioactive debris requiring disposal by up to a factor of 300. The equipment would heat-treat the materials in an oxygen-free environment and use a ceramic powder to absorb radioactive materials.

Plant Status

  • Tokyo Electric Power Co. is planning to address any buildup of hydrogen inside the pressure vessels of Fukushima Daiichi reactors 1 through 3 by directly injecting nitrogen into the vessel. Nitrogen injection is expected to begin early December. Meanwhile, in order to increase the amount of steam in the vessels and decrease the relative buildup of hydrogen, TEPCO is reducing the flow rate of cooling water injection into the reactors. The temperatures within all three reactors are well below the boiling temperature, TEPCO reports.


Media Highlights

  • A pair of articles in the Japanese media analyzes the export market for Japanese nuclear components. Yomiuri Shimbun reports on Toshiba’s U.S. orders for turbine equipment for the nuclear energy facilities being built at the Vogtle site in Georgia and the V.C. Summer site in South Carolina. The Japan Atomic Industrial Forum notes that Japan Steel Works has forecast more than $640 million in orders from China and France for large forged components for nuclear power plants.
  • An article in The New York Times discusses how the post-Fukushima environment is changing national discussions on used nuclear fuel management.
  • Mainichi Daily News reports on the difficulty that Japan’s power industry is having in meeting its carbon dioxide reduction targets now that electricity production at nuclear energy facilities has dropped since the Fukushima accident. Kyodo News points out that Kansai Electric Power Co. is planning to restart an oil-fired plant that had been mothballed for 10 years.

Wednesday, November 23, 2011

Wednesday Update

From NEI’s Safety First web site:

Japan Legislature Passes $156 Billion for Rebuilding, Decontamination

Nov. 23, 2011

Industry/Regulatory/Political

  • Japan’s Diet passed legislation to provide $156 billion in disaster reconstruction aid, the third time since the March earthquake that legislators have approved supplemental funding. Of the total, $3 billion is earmarked to fund radiation decontamination efforts, with the majority of the money to be used to rebuild areas devastated by the earthquake and tsunami and to help companies build new manufacturing plants.
  • Fukushima Prefecture held elections delayed from April because of the earthquake and tsunami. Toshitsuna Watanabe, the incumbent, won the mayoralty race in Okuma, the town nearest the Fukushima Daiichi nuclear energy facility. Watanabe favors rebuilding the town in place while his main opponent, Jin Kowata, advocated moving the entire town further inland. Evacuees from the prefecture were allowed to vote, but the total vote count was low.

Media Highlights

  • The Financial Times reports that American investor Warren Buffett visited Iwaki, a Japanese town in Fukushima Prefecture and pronounced the area’s recovery “amazing.” The Times said the trip, Buffett’s first to Japan, acted as a tonic to Japan’s business environment.
  • The Columbia Journalism Review took the Associated Press to task for needlessly alarmist reporting about cancer risk from radiation exposure near the Fukushima Daichi facility. In a blog post at the organization’s science blog, David Ropeik wrote, “Journalists often play up the dramatic and alarming aspects of the information they’ve found, and play down or leave out the ameliorative, neutral, or balancing aspects that might help do justice to the truth, but which could “weaken” the story. The AP’s article illustrates what this looks like.”

New Products

  • NEI’s Safety First website continues its ongoing focus on practices that enhance nuclear safety. This week, the site features an article about the Fort Calhoun nuclear energy facility, which found itself in the middle of the Missouri River earlier this year when the river flooded. The story looks at the steps taken and equipment used to ensure the integrity of the facility. Fort Calhoun is expected to return online early next year

Monday, November 21, 2011

Monday Update

From NEI’s Safety First web site:

Japan Cabinet Approves Decontamination Protocols

Nov. 21, 2011

Industry/Regulatory/Political

  • The Japanese cabinet has approved “basic policies” to clean up radioactive contamination resulting from the Fukushima Daiichi accident. Based on recommendations made in 2007 by the International Commission on Radiological Protection, areas contaminated to dose levels within two rem per year above background will be cleaned up to reduce adult doses by 50 percent within two years and 60 percent for children, and to a long-term level of 0.1 rem/year above background radiation levels. Two rem is about the same amount of radiation exposure a patient would receive from a full body CT scan. Areas where the annual dose levels are above two rem/year will be given priority in scheduling decontamination activities.
  • The Japan Nuclear Technology Institute has published a report reviewing the Fukushima Daiichi accident. The Japan Atomic Industrial Forum said the analysis of the accident is based on published facts, operational experience and knowledge of the plant design, and includes recommended safety protection measures “to prevent and mitigate severe accidents.”

Media Highlights

  • The Salt Lake Tribune quotes Adrian Heymer, NEI’s executive director of the Fukushima regulatory response, on how some of the safety lessons from the Japan accident already have been incorporated in the features of new nuclear reactor designs.
  • An Associated Press article explains the difficulty of measuring future health effects of the low doses of radiation resulting from the Fukushima Daiichi accident.
  • A Washington Post article describes the areas around the Fukushima Daiichi plant that have remained evacuated since the March accident following the Tohoku earthquake and tsunami.

Friday, November 18, 2011

Friday Update

From NEI’s Safety First web site:

TEPCO Reports Water in Reactor Vessel Remains Below Boiling Point

November 18, 2011

Plant Status

  • Water temperatures inside the Fukushima Daiichi reactor pressure vessels remain below boiling as operator Tokyo Electric Power Co. reports on progress toward stabilizing the damaged reactors. The company expects to reach what it calls a “cold shutdown condition” in the three reactors by the end of the year, with temperatures below 212 F and radiation contained. The exact status of the fuel in the reactors is not known. But if damaged fuel has leaked from the reactors into the primary containments, TEPCO said “it is sufficiently cooled to suppress steam from being generated and [the] accompanying release of radioactive materials.” Radiation measured at the site boundary is 10 millirem per year, one-tenth of the government safety limit. The circulating reactor cooling systems continue to function, as pumps maintain the total volume of accumulated water on the site at a level that can withstand heavy rain or an extended outage of processing facilities.


Industry/Regulatory/Political

  • Japanese authorities have banned rice shipments from the Oonami district of Fukushima City after detection of radiation levels above the government limit, Financial Times reports. Oonami is about 30 miles from the Fukushima Daiichi nuclear energy facility. This is the first time radiation levels above the safety limit have been found in rice since the nuclear accident.

Media Highlights

  • If Japan doesn’t build any new nuclear energy facilities by 2035, the cost of energy will skyrocket, the International Energy Agency says in a UPI report. Only 11 of Japan’s 54 nuclear power plants are operating, most of them shut down for routine maintenance and not permitted to restart until successful completion of stress tests. With greater dependence on fossil fuel, Japan consumed six times more oil and 32 percent more natural gas in October compared to a year ago.
  • Most of the radioactive materials released during the Fukushima Daiichi accident fell into the Pacific and have spread into other oceans around the world, scientists at Japan’s Meteorological Research Institute said. In a report in the Herald Sun, an Australian newspaper, the scientists said the radiation has been widely dispersed and is well below the levels affecting humans.

Wednesday, November 16, 2011

Wednesday Update

From NEI’s Safety First web site:

Second Japanese Utility Submits Stress Test Results to Regulator

November 16, 2011

Industry/Regulatory/Political

  • Shikoku Electric Power Co. has submitted the results of first-phase stress tests for its Ikata Unit 3 reactor to the Nuclear and Industrial Safety Agency. The results show Ikata 3 could withstand an earthquake with ground acceleration 1.9 times as strong as the reactor’s design basis and a 47-foot tsunami, four times its design basis. Shikoku Electric is the second utility to submit a stress test result after Kansai Electric did so for its Ohi Unit 3 reactor Oct. 28.
  • Chubu Electric Power Co. has begun building a 1-mile-long seawall to protect Hamaoka nuclear energy facility against tsunamis. The wall is designed to withstand a tsunami 59 feet high and will cost $1.3 billion. It is to be completed by December 2012. Of the five reactors at the site, reactors 1 and 2 are permanently shut, reactor 3 has been closed for periodic inspection since November 2010, and reactors 4 and 5 were shut down in May after the March 11 earthquake and tsunami.

Plant Status

  • Mitsubishi Heavy Industries said Nov. 15 it is installing the first of eight 90-cubic-meter storage tanks at Fukushima Daiichi. The tanks will be used to store sludge from water decontamination operations. Installation of the tanks is to be completed by April. Tokyo Electric Power Co. told journalists last week that 77,500 metric tons of water still needs purification treatment.
  • Nuclear Engineering International reported that TEPCO has sealed stairwells, hatches and other penetrations leading to the basements of turbine halls and other buildings at Fukushima Daiichi. The measure is meant to reduce the spread of radioactive dust as the company pumps water from the basements to decontaminate and recycle it for reactor cooling.

Media Highlights

  • The International Atomic Energy Agency’s final report to the Japanese government from its October inspection of the areas surrounding Fukushima Daiichi recommends Japanese authorities take a “balanced approach” in prioritizing cleanup efforts. It also recommends local disposal of contaminated soils and other materials from remediation efforts and offers IAEA assistance if requested.
  • Dow Jones reports that a panel has been set up to advise the Japanese Ministry of Economy, Trade and Industry on the need to revise safety regulations for the country’s older nuclear reactors.
  • Platts reports that as Japan’s nuclear energy utilization plummeted to a record low of 18.5 percent, the country’s 10 major electric utilities have consumed six times more oil this October than they did the same time last year.

Monday, November 14, 2011

Being At Fukushima – Now and Then

insidefukushima8Talking Points Memo has posted a set of photos at the Fukushima Daiichi plant. Reporters were let into the facility for the first time since the earthquake and tsunami crippled the plant. A New York Times story covering the visit cannot really allow much room to acknowledge that progress has been made:

The ground around the hulking reactor buildings was littered with mangled trucks, twisted metal beams and broken building frames, left mostly as they were after one of the world’s largest recorded earthquakes started a chain reaction that devastated the region and, to some extent, Japan. 

Chain reaction, get it? Ha ha.

While no one died in the nuclear accident, the environmental and human costs were clear during the drive to the plant through the 12-mile evacuation zone.

It might have been nice to have this higher than the eighth paragraph, but it’s still nice to see – though it would have been more fully accurate to note that the human toll was quite dreadful and the property damage a hurt heaped upon a mortal wound.

About 20,364 people have been declared (about 15,700) or assumed (about 4800) dead. About 112,000 buildings were leveled and another 140,000 badly damaged. All of it caused by the earthquake and tsunami, none of it by Fukushima Daiichi.

The company’s minders on the bus were eager to show off one of its major accomplishments so far: the completion of a huge superstructure built over reactor No. 1, designed to trap radioactive materials. The company said a similar cap would soon be built over the heavily damaged No. 3 reactor.

So there’s that. But you know what? As far as a story on this event goes, that’s okay. The pieces are mostly there and it would be foolish to pretend that the accident hasn’t taken its own toll and that the toll doesn’t merit covering. It does – of course it does – but it’s worth stressing that the horror widely anticipated by the press early on never materialized. But – that’s okay.

Finding a balance that will satisfy all readers will take considerably more time. In the interim, the Times’ Martin Fackler does allow for some consideration:

The star of Saturday’s press briefing was Masao Yoshida, the manager of the plant and a man now revered for his stamina over months of grueling, and often dispiriting, work.

During the briefing, he mainly stuck to the message that Tepco was hoping to deliver: “I have no doubt the reactors have been stabilized,” he said. But in an echo of the plain spokenness that won the admiration of Naoto Kan, the prime minister at the peak of the crisis, he added a note of caution: “There is still danger.”

Well, some consideration anyway. I’d say the whole article is worth a read, though one has to allow for a narrative approach that Fukushima, stubbornly, hasn’t really earned. The earthquake and tsunami? Woefully, they did earn it.

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If you want to know what it was like to be at Fukushima Daiichi after a major earthquake hit and the staff knew it had about 40 minutes to prepare before a tsunami struck the facility, and the tsunami then struck, the Institute of Nuclear Power Operations (INPO to its friends), has assembled a timeline, with complete cooperation from Tepco and the Japanese authorities, that does not mean to create a dramatic narrative but cannot avoid it.

Because of a lack of power, temporary batteries were necessary to open the SRV. Batteries were gathered from cars, carried to the control room, and connected. However, the voltage was insufficient, so additional batteries were scavenged and added. Operators attempted to operate several SRVs without success. With no injection, reactor water level decreased. The lack of core cooling likely resulted in core damage and the generation of hydrogen from the high-temperature interaction of steam and zirconium inside the reactor.

In it’s dry, factual way, the timeline can occasionally forget that those batteries didn’t gather themselves from cars – and that those gathering the batteries could not be sure then if their families were alive or dead.

Granted, the point here is not drama:

“The U.S. nuclear energy industry is committed to learning from Japan’s experience and applying relevant lessons to make U.S. nuclear energy facilities even safer. We are sharing this report with the widest possible audience because it is important that we all work from the same set of facts in determining the appropriate response,” said NEI’s senior vice president and chief nuclear officer, Tony Pietrangelo. “It is of paramount importance that we learn from it and take our facilities to even higher levels of safety and preparedness.”

That’s the point. But drama is there, too.

What a remarkably resourceful and brave group of people those workers were at Fukushima. I hope we learn their names at some point.

There’ll be plenty more to say about the substance of the timeline, but it’d be a shame to let the moment of its release pass without a salute to the workers over on that side of the Pacific.

Cars piled up against the Fukushima Daiichi facilities.

Friday, November 11, 2011

NEI's Tony Pietrangelo Gives Overview of INPO Timeline

In addition to the published INPO timeline, NEI CNO Tony Pietrangelo also recorded a video overview, one that includes a brief look at how American industry is applying the lessons learned from Fukushima to enhancing safety at U.S. plants:


INPO Compiles Timeline of Fukushima Events After Japan Earthquake, Tsunami

Just a few minutes ago, the Institute of Nuclear Power Operations published a detailed timeline of events at the Fukushima Daiichi nuclear power station following the March 11 earthquake and tsunammi (click here for the PDF of the report). The full text of the Nuclear Energy Institute news release announcing the publication follows below:
INPO Compiles Timeline of Fukushima Events After
Japan Earthquake, Tsunami

4-Day Chronology Provides Common Baseline of Facts To
Inform Response Activities by U.S. Industry, Government

WASHINGTON, D.C., Nov. 11, 2011—The Institute of Nuclear Power Operations has compiled a detailed timeline of events at the Fukushima Daiichi nuclear power station after the March 11 earthquake and tsunami in Japan. The detailed report, prepared as part of the integrated response to the Japan events, was delivered today to U.S. industry executives, the Nuclear Regulatory Commission and to members of Congress.

“The U.S. nuclear energy industry is committed to learning from Japan’s experience and applying relevant lessons to make U.S. nuclear energy facilities even safer. We are sharing this report with the widest possible audience because it is important that we all work from the same set of facts in determining the appropriate response,” said NEI’s senior vice president and chief nuclear officer, Tony Pietrangelo. “It is of paramount importance that we learn from it and take our facilities to even higher levels of safety and preparedness.”

U.S. nuclear power plants operating in 31 states produce 20 percent of U.S. electricity, with a unique combination of 24/7 production, industry-leading reliability and zero carbon emissions or air pollution.

The report presents a chronology of activities at the Fukushima Daiichi station in the first four days after the earthquake and tsunami. It does not provide analysis, draw conclusions or include recommendations on the events. Most of the information in the report has been previously released, but in a piecemeal fashion. The Institute of Nuclear Power Operations, an industry organization whose mission is to promote the highest levels of safety throughout the U.S. nuclear industry, worked closely with the Tokyo Electric Power Co., the plant’s operator, to develop the timeline. Information was compiled from multiple sources, including the Japanese government, the International Atomic Energy Agency, and several Japanese nuclear and safety organizations.

The U.S. nuclear energy industry has established a leadership model among major electric sector organizations – including NEI, the Electric Power Research Institute, reactor vendors and INPO – to integrate and coordinate the nuclear industry’s ongoing response to the Fukushima Daiichi accident.

This Fukushima Response Steering Committee already has identified five areas that warrant action or further examination:

  • Seismic and flooding inspections
  • Maintaining safety during a prolonged loss of AC power
  • Assuring the accessibility and functionality of reactor containment vent valves assuming loss of AC power
  • Enhanced training in guidelines to manage severe accidents
  • Enhanced monitoring of used fuel storage pools at reactors

  • “This timeline doesn’t tell us why events unfolded – a comprehensive root cause analysis will likely take several months if not years to achieve that understanding. However, the facts presented in this timeline reinforce the industry’s and the NRC’s independent assessments on what our response priorities should be,” Pietrangelo said.

    The timeline is available here and at NEI’s “Safety First” website, http://safetyfirst.nei.org.
    More to come.

    Wednesday, November 9, 2011

    Wednesday Update

    From NEI’s Safety First web site:

    Japanese Regulator Confirms No Criticality at Fukushima Daiichi

    November 9, 2011

    Plant Status

    • Sustained nuclear fission did not occur at the Fukushima Daiichi nuclear energy facility last week, Japan’s Nuclear and Industrial Safety Agency said, confirming earlier reports from Tokyo Electric Power Co. Plant employees detected a trace amount of radioactive xenon-135 gas in the reactor 2 containment vessel last week, which led to initial concerns there might have been an ongoing nuclear reaction in the vessel. After investigation, TEPCO said the xenon was produced through spontaneous fission, a form of radioactive decay. NISA said the density of the xenon did not change when a boric acid solution was injected into the reactor, demonstrating that criticality was not occurring.

    Industry/Regulatory/Political Issues

    • Japan’s environment ministry has begun a study of radiation levels within 12 miles of Fukushima Daiichi to pinpoint areas that should be decontaminated first. An interim report is expected in December, with full-scale cleanup beginning in January.
    • One-quarter of the evacuees from areas around Fukushima Daiichi have no intention of returning, a Fukushima University survey has found. More than half of the respondents in their mid-30s or younger said they won’t return to their hometowns. The Fukushima University group sent questionnaires to all households in eight municipalities near the nuclear energy facility, receiving responses from about half of them.

    Media Highlights

    • Energy costs will rise over the next two decades if governments don’t promote renewables and nuclear power, Bloomberg News reports. The online article says the International Energy Agency predicts global demand for energy will increase by 40 percent by 2035.
    • Following computer-simulated stress tests of its systems, Kansai Electric Power Co. reported that its Ohi 3 nuclear energy facility has sufficient safety margins to withstand beyond-design-basis events, Nuclear Engineering International reports.
    • The Dalai Lama said after a tour of tsunami-damaged northeastern Japan that he supports using nuclear energy as a peaceful way to bridge the economic gaps in developing countries, the Wall Street Journal Japan Realtime blog reports.
    • A French radiological organization has proposed hardening the country’s nuclear reactors so a limited number of “hard core” safety-related systems, structures and components can withstand extreme external events like floods and earthquakes that are outside the plant’s safety parameters. The organization said analysis of the country’s reactors showed that external events had not been considered as thoroughly in plant design as internal events, Platts reports.

    New Products

    • NEI’s Safety First website continues its ongoing focus on practices that enhance nuclear safety. This week the site features an interview with Bonnie Bryant at Seabrook nuclear energy facility, where she and her husband have both worked since the early 1990s. Each holds a senior reactor operator’s license. Bryant discusses safety procedures at the facility.

    Note: There will be no Friday Update due to the Veterans Day holiday. Updates will return Monday.