Radioactive cesium above legal limit detected in fish caught off Fukushima via The Japan Times

Radioactive cesium exceeding the state limit has been detected in fish caught off Fukushima Prefecture for the first time in about four years, the prefecture’s fisheries cooperatives association has said.

The cesium level of 161 becquerels per kilogram, exceeding the limit of 100, was detected in a skate, a type of ray, caught at a depth of 62 meters during test fishing Thursday.

[…]

In radiation checks of fish by the Fukushima Prefectural Government, a cesium level exceeding the limit was last detected in a stone flounder in March 2015, at 140 becquerels per kilogram.

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U.S. to announce suspension of compliance with nuclear pact: official via Reuters

WASHINGTON (Reuters) – The United States will soon announce plans to suspend compliance with a landmark nuclear missile pact with Russia, responding to an alleged violation of the treaty by Moscow, U.S. officials said on Thursday.

The move would start a six-month countdown that could lead to permanent U.S. withdrawal from the 1987 arms control accord, which bans either side from stationing short- and intermediate-range, land-based missiles in Europe, the officials said.

However, Washington could choose not to pull out of the Intermediate-range Nuclear Forces Treaty (INF), if Russia comes into compliance with the treaty within that time frame.

The United States alleges that a new Russian cruise missile violates the pact. The missile, the Novator 9M729, is known as the SSC-8 by the North Atlantic Treaty Organization (NATO).

Russia denies the allegation, saying the missile’s range puts it outside the treaty, and has accused the United States of inventing a false pretext to exit a treaty Washington wants to leave anyway so it can develop new missiles. Russia has also rejected a U.S. demand to destroy the new missile.

[…]

 
 
 

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How do you dismantle a nuclear power plant? Very, very carefully via Washington Post

February 1 at 7:00 AM

Behind the locked gates of Building 372 at Fort Belvoir in Virginia, past the door to the huge containment vessel where a sign warns of radiation, a large button on the control panel is covered in red plastic and reads: “manual scram.”

This is the emergency shutdown button, which nuclear legend says was pushed when it was time to scram.

But these days, the dark interior of the Army’s historic nuclear reactor, once called an “atomic-age miracle machine,” is a maze of rusted pipes, peeling paint and pressure gauges reading zero.

Keys in the control panel haven’t been turned in years, and switches are set to “off.”

The world’s first nuclear plant to supply energy to a power grid has been defunct for years. But the Army is preparing to break it up, check it for lingering radiation and haul it away piece by piece.

Dedicated in 1957, as the government was promoting “Atoms for Peace,” the facility was a training site and a prototype for small reactors that could produce power for bases in remote places around the world, the Army said. Built on the Potomac River’s Gunston Cove, it was called the SM-1, for stationary medium power plant No. 1.

“First nuclear power plant ever to put power on a grid, ever in the world,” said Hans B. Honerlah, a senior health physicist with the Army Corps of Engineers’ hazardous, toxic and radioactive waste branch.

[…]

Honerlah said at Fort Belvoir earlier this month: “It’d be great to make it a museum, but it’s always going to be radioactive.

“It has to go away. It’s never going to not be radioactive. The goal . . . is to take the remaining radioactive components, remove them from the . . . facility here and take them” to a nuclear waste site, probably in western Texas.

[…]

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4号機タンクから300トン漏水 東電は2年超気付かず via 東京新聞

東京電力は23日、福島第一原発4号機の海側にある復水貯蔵タンクから、放射性トリチウムを含む水300トンが漏れ出ていたと発表した。タンク水位は毎日の測定で、2016年11月から低下傾向だったが、変動が小さく気付かなかったという。水は配管を通じて4号機タービン建屋内に流入したとみられ、周辺への影響はないとしている。トリチウムは1リットル当たり12万ベクレルが含まれ、法令の排出基準の2倍だった。 
また21日午後3時半前、構内で40代の男性作業員が意識を失って心肺停止となり、搬送先の病院で死亡した。男性は昨年8月から勤務し、顔全体を覆う全面マスクと防護服を着用して、西門付近で出入り車両の放射能汚染状況を調べていた。

 

原文

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わいわい交流会と講演via ひなんサポートひょうご

渡辺悦司講演

トリチウムの特別の危険性 汚染水海洋投棄、原発再稼働で深刻な健康被害が予想される


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U.S. to Suspend Obligations Under 1987 Nuclear Treaty With Russia via The Wall Street Journal

U.S. to begin six-month process of withdrawal from Intermediate-range Nuclear Forces pact

WASHINGTON—The U.S. will suspend its obligations under a Cold War-era arms control treaty with Russia and said it would begin withdrawing from the pact, after talks to compel Russia to destroy missiles and launchers the U.S. maintains breach the agreement failed, the White House said on Friday.

[…]

Friday’s announcement from the Trump administration follows revelations that Russia has expanded its deployment of its Novator 9M729 missile, which Russia insists is fully compliant with the treaty.

[…]
Signed by President Ronald Reagan and Soviet leader Mikhail Gorbachev, the pact was hailed as a landmark treaty signaling the end of the Cold War. The 1987 treaty bans U.S. and Russian land-based missiles that can fly between 300 and 3,400 miles.
 
[…]

The missile system was first fielded in 2017. Its continued production and deployment underscores the importance the Russians place on it, even as they have advocated resolving the U.S. allegations through diplomacy.

NATO “fully supports” the U.S. suspension and notification of withdrawal, NATO Secretary General Jens Stoltenberg said Friday.

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Storage of nuclear waste a ‘global crisis’ as stockpile reaches 250,000 tons, Greenpeace warns via The Japan Times

Nuclear waste is piling up around the world even as countries struggle to dispose of spent fuel that will remain highly toxic for many thousands of years, Greenpeace detailed in a report Wednesday.

An analysis of waste storage facilities in seven countries with nuclear power revealed that several were near saturation, the anti-nuclear nongovernmental organization said.

All these nations also confronted other problems that have yet to be fully contained: fire risk, venting of radioactive gases, environmental contamination, failure of containers, terrorist attacks and escalating costs.

“More than 65 years after the start of the civil use of nuclear power, not a single country can claim that it has the solution to manage the most dangerous radioactive wastes,” Shaun Burnie, a nuclear expert at Greenpeace Germany and coordinator of the report, said in a statement.

[…]

Currently, there is a global stockpile of around 250,000 tons of highly radioactive spent fuel distributed across 14 countries.

Most of this fuel remains in so-called cooling pools at reactor sites that lack secondary containment and remain vulnerable to a loss of cooling. Some lack a source of back-up power.

The partial meltdown of the Fukushima nuclear power plant in 2011 made clear that the high-heat hazard of spent fuel pools is not hypothetical.

The 100-page report, compiled by a panel of experts, dissected shortcomings in the management of voluminous waste in France, which has the second-largest nuclear reactor fleet (58), after the United States (about 100).

[…]

In the United States, billions of dollars and decades of planning have failed to secure a geological disposal site, the report notes.

The Yucca Mountain underground facility — decades in construction — was finally canceled in 2010 by the Obama administration.

Some 70 percent of spent fuel in the United States remains in vulnerable cooling pools, often in densities several times greater than originally intended.

Nuclear waste from uranium mining is also a major environmental concern.

The world’s inventory of uranium mill tailings — sandy waste material that can seep into the local environment — was estimated at more than 2 billion tons as of 2011.

Read more at Storage of nuclear waste a ‘global crisis’ as stockpile reaches 250,000 tons, Greenpeace warns 

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原発の運転延長せず 2年以内は火力発電年1%減少へ=経済部/台湾 via フォーカス台湾

(台北 1日 中央社)昨年11月に実施された国民投票で、政府が推進する脱原発政策に反対する3つの案が全て可決されたのを受け、経済部(経済省)は1月31日、既存の原子力発電所の運転延長や凍結中の第4原発(新北市貢寮区)の凍結解除をそれぞれ行わないことを決め、火力発電に関しては投票結果が効力を持つ2年以内は年1%ずつ発電量を削減させると発表した。沈栄津部長(経済相)は、電力の安定供給は可能だとした。

国民投票では、「毎年少なくとも平均1%削減」の形で火力発電所の発電量を年々減らしていくことや、石炭火力発電所または発電ユニットの新設、拡張の停止について賛否を問う2つの案が野党・国民党から出されたほか、原発支持派の団体から、電気事業法に盛り込まれた「2025年までに全原発の運転停止」という条文の廃止を求める案が提案され、いずれも可決された。

(廖禹揚/編集:名切千絵)

続きは原発の運転延長せず 2年以内は火力発電年1%減少へ=経済部/台湾 

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Ann Arbor officials propose stockpiling potassium iodide in case of nuclear disaster via Michigan Live

ANN ARBOR, MI – On a day when temperatures dropped to 18 degrees below zero, it’s hard to think about much else.

But Ann Arbor officials have another thing on their minds: preparing for a potential future nuclear disaster.

City Council will consider a resolution Monday, Feb. 4 calling for strengthening local emergency planning by stockpiling nonprescription potassium iodide in communities within 50 miles of the Fermi 2 nuclear power plant in southeast Michigan.

Ann Arbor is roughly 30 miles from the Fermi 2 plant on the shore of Lake Erie.

[…]

The American Thyroid Association has called for pre-distribution of potassium iodide, also known as KI, to households within a 10-mile radius of nuclear power plants such as Fermi 2, and stockpiling it in public facilities such as schools, hospitals, clinics, post offices and police and fire stations in up to a 50-mile radius.

[…]

The Fermi 2 plant is similar in design to the Fukushima Daiichi plant, with a Mark 1 boiling water reactor, he said.

“This is a particularly controversial design,” he said. “The multiple-containment failure at Fukushima Daiichi demonstrated that this a vulnerable design. And while the circumstances of the Fukushima Daiichi accident were clearly unique, the problem of course is that there is a design flaw in the Mark 1 boiling water reactor design, that the containment is essentially too small.”

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福島沖の魚 基準超えセシウムを検出 via 毎日新聞

福島県漁業協同組合連合会(県漁連)は31日、同県広野町沖の試験操業で漁獲したコモンカスベから、国の基準値(1キロ当たり100ベクレル)を超える161ベクレルの放射性セシウムを検出したと発表した。国に報告し、安全が確認できるまでコモンカスベの出荷を全面的に自粛する。福島沖で取れた魚が基準値を超えたのは、2015年3月以来約4年ぶり。

(略)

国の基準値を超える放射性物質は14年2月のユメカサゴ以降は検出されていなかった。

 県のモニタリング検査でも15年3月にイシガレイが超えたのを最後に、3万検体以上連続で国の基準値を下回っていた。【乾達】

全文は福島沖の魚 基準超えセシウムを検出

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