全国の水道の放射能濃度

Image: A crane this month sorts out rubble from the 2011 earthquake and tsunami at the collection site in northeastern  Japan. Some reports suggest the country's reconstruction efforts are set back by spending on unrelated projects. Credit: Koji Sasahara / Associated Press

latimesblogs.latimes.com - October 31st, 2012 - Emily Alpert

Billions of dollars meant to help Japan recover from its devastating tsunami went to government projects that had little or nothing to do with the disaster, a new spending review shows.

mcclatchydc.com - October 25th, 2012 - Eryn Brown

More than 18 months after a magnitude 9.0 earthquake, 40-foot tsunami and nuclear power plant woes that struck Japan starting March 11, 2011, levels of radioactive cesium 134 and cesium 137 originating from the crippled Fukushima-Daiichi plant remain elevated in some fish and seafood in nearby waters.

That suggests that radiation from the plant is still being released into the ocean, wrote Ken Buesseler, a marine of the Woods Hole Oceanographic Institution in Woods Hole, Mass., in a perspective article in Friday's edition of the journal Nature.

Buesseler reviewed data on radionuclides in fish and other seafood that have been compiled by the Japanese Ministry of Agriculture, Forestry and Fisheries since March 23, 2011.

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economictimes.indiatimes.com - Reuters
September 26, 2012

(CLICK ON "READ MORE" AT THE BOTTOM OF THIS POST FOR LINKS TO THE REPORT )

LONDON: More than 100 million people will die and global economic growth will be cut by 3.2 percent of gross domestic product (GDP) by 2030 if the world fails to tackle climate change, a report commissioned by 20 governments said on Wednesday.

As global average temperatures rise due to greenhouse gas emissions, the effects on the planet, such as melting ice caps, extreme weather, drought and rising sea levels, will threaten populations and livelihoods, said the report conducted by humanitarian organisation DARA.

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Image: A render of the low-carbon Omotenashi House.

submitted by Samuel Bendett

inhabit.com - September 5th, 2012 - Peter Leah

Later this month the Madrid Solar Decathlon will welcome the only Japanese entrant, the Omotenashi House designed by students from Chiba University. The house has been designed for two people to lead a self-sufficient lifestyle, incorporating modern technology with inspiration from—and respect for—traditional Japanese architectural practices. Following the earthquake and subsequent Fukushima disaster, Japan has been looking for inspiration to create a low-carbon future.

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Tokyo Electric Power Company, Inc. - June 20, 2012

This report supplements the December 2011 Interim Report with the addition of investigations and examinations carried out after the release of the Interim Report, from the following three perspectives:

In addition to the issues concerning and measures taken in regard to the facilities as written in the Interim Report, issues concerning and measures taken in regard to operations have also been added;

Items for which investigations had not yet been completed at the time of the release of the Interim Report have been added; and

Further investigation was conducted on the issues in question and added to the report.

・In this report, TEPCO has made an effort to learn from what it experienced as a party to this accident and from the compiled data, and has summarized the manifestation of the facts investigated, the causes leading to core damage, and measures for prevention. These will steadily be applied to the nuclear power stations it owns.

submitted by Luis Kun

Homeland Security News Wire - July 5, 2012

Executive Summary - Slideshare

Executive Summary - (88 page .PDF file)

NAIIC Report

The commission investigating the Fukushima disaster of March 2011 concluded that although the combination of the tsunami and earthquake was unprecedented in its ferocity, the disaster was largely man-made because it was amplified by what came before it and what followed it. The disaster itself, the Fukushima Nuclear Accident Independent Investigation Commission, said was sandwiched by practices and conduct which were the result of government-industry collusion and the worst conformist conventions of Japanese culture.

submitted by Eric Myers

theatlantic.com - by Michael McAteer - June 4, 2012

A plan to disperse the waste to incineration facilities across the country, meant to instill national unity, is doing the opposite, and further delaying Japan's ability to move beyond Fukushima.

KITA KYUSHU, Japan -- Disposing the more than 20 million tons of rubble caused by the March 11 earthquake and tsunami is proving to be a difficult problem for Japan, not least because much of the rubble has been irradiated by the Fukushima nuclear disaster. The government's plan -- to destroy 4 million tons of potentially radioactive earthquake debris in garbage incinerators around the country -- is dividing the nation and further delaying the country's ability to put Fukushima behind it.

submitted by Luis Kun

Homeland Security News Wire - May 30, 2012

A Sandia Lab-developed technology — crystalline silico-titanate, or CST — is a molecular sieve that can separate highly volatile elements from radioactive wastewater; the technology has been used to remove radioactive material from more than forty-three million gallons of contaminated wastewater at Japan’s damaged Fukushima Daiichi nuclear power plant

A Sandia National Laboratories technology has been used to remove radioactive material from more than forty-three million gallons of contaminated wastewater at Japan’s damaged Fukushima Daiichi nuclear power plant. Sandia researchers had worked around the clock following the March 2011 disaster to show the technology worked in seawater, which was pumped in to cool the plant’s towers.

“It’s the kind of thing that sends a chill,” said Mark Rigali, manager of the geochemistry group at Sandia.

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Tokyo Electric Power Company (TEPCO) - May 16, 2012

1. Purpose of Soundness Inspection

In response to the concern that Unit 4 spent fuel pool may collapse,
we have provided the explanations below to prove its soundness.
We will continue our regular inspection 4 times a year to ensure
soundness until the fuel is removed.

• 1. We have confirmed that the building has not tilted by measuring the distance
  between the water surface of the spent fuel pool and the floor surface of the
  building.

• 2. Our analysis result shows that the reactor building including the spent fuel
  pool will not collapse even if an earthquake equivalent to the Tohoku-Pacific
  Ocean Earthquake (seismic intensity 6) occurs in the area.

• 3. The seismic safety margin has improved by more than 20% by reinforcing
  the bottom of the spent fuel pool.

• 4. Regular inspection (4 times a year) is done to confirm the soundness of the
  reactor building and the spent fuel pool.

(READ COMPLETE REPORT - 9 page.PDF file)

submitted by Samuel Bendett

bloomberg.com - by Jared Diamond - April 25, 2012

Japan’s economic problems are serious and getting worse. Foremost among them is the crushing burden of government debt.

Japan’s ratio of government debt to gross domestic product, currently about 2.28, is by far the highest in the industrial world, almost double that of even Greece and Italy, and steadily growing. Already, the combined costs of interest on that debt and social security are approximately equal to total government tax revenue.

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yomiuri.co.jp - March 28, 2012

The water level in the containment vessel of the No. 2 reactor at the Fukushima No. 1 nuclear power plant is only about 60 centimeters deep, far shallower than previously assumed levels of about four meters, according to Tokyo Electric Power Co.

The lower-than-expected water level was discovered for the first time when the power utility used an industrial endoscope to check the crippled reactor's interior on Monday, TEPCO said.

According to some experts, it is possible that nuclear fuel that melted through the reactor's pressure vessel and accumulated on the bottom of the containment vessel in the aftermath of the March 11 earthquake and tsunami may not be completely covered in the water.

TEPCO said the water temperature in the vessel remained relatively low within a range of 48.5 C to 50 C. The discovery of the unexpectedly shallow water level will not affect TEPCO's judgment that the reactor is in a state of "cold shutdown."

http://www.yomiuri.co.jp/dy/national/T120327006202.htm

submitted by Samuel Bendett

Homeland Security News Wire - March 13, 2012

Before 11 March 2011, Japan was held up as a paragon for preparedness; they had a national readiness plan, regular disaster drills, and strong civic engagement; the Fukushima disaster exposed a disturbing reality: search and rescue efforts were delayed, shelters ill-equipped, and supply chains broken; worst of all, there was confusion about who was managing the nuclear accident — the power company TEPCO or the Japanese government; information, when forthcoming, was sometimes contradictory

Sunday marked the 1-year anniversary of the Fukushima disaster, and experts at the Mailman School of Public Health at Columbia University took stock of disaster response, nuclear fears, and lessons learned.

Before 11 March 2011, Japan was held up as a paragon for preparedness. They had a national readiness plan, regular disaster drills, and strong civic engagement. In the face of an unprecedented 9.0 earthquake, massive tsunami, and a nuclear accident at the Fukushima-Daiichi power plant, however, the country experienced a host of challenges — many that continue to be felt.

submitted by Samuel Bendett

Homeland Security News Wire - March 12, 2012

A year after the Fukushima disaster all but two of Japan’s fifty-four nuclear reactors remain shut down, in a country where nuclear power once supplied nearly 30 percent of the electricity; the Japanese government is awarding an initial $13 billion in contracts to begin decontamination and rehabilitation of the more than 8,000-square-mile region most exposed to radioactive fallout

A year after the crisis at Japan’s Fukushima Daiichi nuclear power plant, scientists and engineers remain largely in the dark when it comes to fundamental knowledge about how nuclear fuels behave under extreme conditions, according to a University of Michigan nuclear waste expert and his colleagues.

In a review article in this week’s edition of the journal Science, U-M’s Rodney Ewing and two colleagues call for an ambitious, long-term national research program to study how nuclear fuels behave under the extreme conditions present during core-melt events like those that occurred at Fukushima following the 11 March, 2011, magnitude 9.0 earthquake and tsunami.

Local spinach on sale at a farmers cooperative in Nihonmatsu, Fukushima prefecture, where many still shun regional produce, March 7, 2012.

submitted by Samuel Bendett

voanews.com - by Steve Herman - March 9, 2012

Scientists from the former Soviet Union have arrived in Japan's Fukushima prefecture to advise locals on farmland decontamination.

One of Japan's most valued agricultural regions, the area was irradiated when three nuclear power plant reactors melted down in the wake of last year's earthquake and tsunami on the country's northeastern coast.

According to Japanese officials, 81,000 hectares of farmland are contaminated at a level above 5,000 becquerels per kilogram, the limit at which rice, by government decrees, cannot be planted.

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