川内原発、再稼働差し止め申請を却下 仮処分で鹿児島地裁 via 日本経済新聞

原子力規制委員会の新規制基準に基づく審査に合格した九州電力川内原子力発電所1、2号機(鹿児島県薩摩川内市)の運転差し止めを住民らが求めた仮 処分申請で、鹿児島地裁は22日、住民らの訴えを却下する決定をした。事実上再稼働を認めたことになる。前田郁勝裁判長は「新規制基準に不合理な点は認め られない」と指摘した。

関西電力高浜原発3、4号機(福井県高浜町)の再稼働を認めなかった14日の福井地裁の仮処分決定とは司法判断が分かれた。

川内原発は全国の原発の中で最も早く再稼働の手続きが進む。昨年9月、規制委の審査に初めて合格し、地元自治体の同意手続きも終わっている。今回の仮処分決定を受け、九電は今年7月の再稼働を目指して準備を本格化させる。

仮処分は通常の民事訴訟で争っていては時間がかかるため、暫定的に行われる手続き。決定は訴訟の判決と異なり、すぐに効力を持つ。今後の司法手続きで決定 が取り消されない限り、再稼働はできる。住民側は高裁に即時抗告するとみられ、審理は上級審に及んで長引く可能性が大きい。

(略)

今回の決定で前田裁判長は、新規制基準について「専門的知見を有する規制委が相当期間、多数回にわたる審議を行うなどして定められたもの」と指摘。「最新の科学的知見に照らし、内容に不合理な点はない」と判断した。

全文は川内原発、再稼働差し止め申請を却下 仮処分で鹿児島地裁

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公立小4分の1近く 屋外授業に制約 via Yomiuri Online

福島大や県市町村教育委員会連絡協議会などでつくる団体が実施したイン ターネット調査で、回答した公立小学校の4分の1近くが、東京電力福島第一原発事故の影響で主に屋外で行う授業に困難や制約があると答えたことがわかっ た。同大などは「保護者らの放射能への根強い不安が背景にある」と指摘している。

 調査は昨年11月~今年1月、公立の小学校468校、中学校228校を対象にインターネット上で行い、約7割から回答があった。

 授業の実施について「一部困難」と答えたのは、中学校の6%に 対し、小学校では24・6%に上った。具体例は、遠足や登山、学校の畑を使った作物栽培、プールでの水泳指導など。地域の清掃ボランティア活動を挙げた学 校もあった。同大は「放射能の影響を受けやすい低年齢の子供を持つ保護者の不安が強く、特に小学校で屋外活動が控えられている」と分析する。

続きは公立小4分の1近く 屋外授業に制約

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40 Percent of Hanford Nuclear Waste Would Fit in One 5-km Deep Borehole via IEEE

All of Britain’s high-level nuclear waste could be buried in just a few extremely deep holes, and the first U.S. field trials of this strategy may begin next year, researchers say.

Solving the problem of radioactive waste disposal is crucial to the future of nuclear power. At the moment, most countries dispose of high-level nuclear waste, such as the spent fuel from nuclear reactors, in relatively shallow repositories just 300 to 800 meters underground. However, researchers at the University of Sheffield, in England, do not think such depths are safe enough, because groundwater can circulate in this zone.

Deep borehole disposal, in contrast, involves using boreholes about five kilometers deep to store hundreds of packages of high-level nuclear waste. It takes advantage of decades of expertise and equipment developed for drilling for oil, gas, and geothermal energy. At such depths, what little groundwater there is has usually stayed there for millions of years and does not move far. Even if an accident happened, the Sheffield team suggest there would be no disastrous consequences for anyone above ground.

To ensure the success of deep borehole disposal, the researchers have designed a method to seal the hole completely to prevent radioactive material from returning to the surface. This involves melting a layer of granite over the waste, which has the same properties as natural rock after it solidifies.

[…]

The Sheffield scientists presented their latest findings last week at the American Nuclear Society International High-Level Radioactive Waste Management conference, in Charleston, S.C.

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福島第一原発 排水路のポンプ停止し汚染の雨水流出 via NHK News Web

(抜粋)

福島第一原発では、ことし2月、2号機の原子炉建屋の屋上から放射性物質の濃度が比較的高い汚染された雨水が排水路を通じて原発の港湾の外の海に流れ出していたことが明らかになりました。

東京電力は問題の排水路を途中でせき止めたうえで、8台のポンプを設けて港湾内につながる別の排水路に雨水を移す応急の対策工事を行い、今月17日からポンプを本格稼働させました。

と ころが、21日午前8時ごろ、8台あるポンプがすべて止まって雨水があふれ出し、港湾の外の海に流れ出しているのを点検中の作業員が見つけました。海に流 れ出した雨水の量や放射性物質の濃度などは分かっていませんが、東京電力は今月9日の時点では濃度は極めて低いレベルだったとしています。

また、20日午後2時すぎに点検した時にはポンプは正常に動いていたということで、停止した原因はまだ分かっていないほか、復旧のめども立っていません。

問題のポンプは1時間に14ミリを超える雨が降ると、容量を超えて排水しきれなくなるということですが、当時は強い雨は降っていなかったということです。

全文は福島第一原発 排水路のポンプ停止し汚染の雨水流出 

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‘Fukushima Lessons: Any Notion That Nuclear Power Is Clean Is Obsolete’ via RTs

The world must phase out nuclear power because it is absolutely not clean from the mining processing of uranium to the generation of high-level radioactive waste, Kevin Kamps for the radioactive waste watchdog Beyond Nuclear, said.

17 Apr 2015 – It’s been four years since the most powerful earthquake in Japan’s history struck the Fukushima nuclear power plant. All of Japan’s 43 operable reactors have been shut down since 2013, because of safety checks required after the accident. The operator of the nuclear plant has sent a second robot inside the Fukushima reactor to collect data from it. The first robot became immovable after recording some footage from inside the reactor.

RT: Since the disaster, Japan has allocated more than $15 billion to an unprecedented project to lower radiation in towns near the power plant. However few locals believe Tokyo’s assurances that the site will eventually be cleaned up. Do you think their fears are reasonable?

Kevin Kamps: Yes, it is an unprecedented catastrophe. Of course there was Chernobyl, but in this area of Japan – it is so densely populated all over. So when they are trying to clear the landscape down to a certain depth, it is going to be more and more expensive. When you add all of the projects from decommissioning of the nuclear power plant to trying to clean up the landscape to loss of economic activity – we’re talking hundreds of billions of dollars all together. It is going to be very difficult for anything like normal life ever to return there.

RT: In addition to massive radioactive remains, Japan’s greenhouse gas emissions are on the rise following the increase in coal-fired power. Should environmentalists sound the alarm here?

KK: Just in recent days there have been the admissions by high-ranking Tokyo Electric officials that the decommissioning of the nuclear power plant could take more like 200 years because of the lack of technology to do the job. They are going to have to invent all of these robotic systems and engineering processes to try to remove the melted cores at Fukushima Daiichi because that is their current plan unlike Chernobyl with the sarcophagus. The current plan in Japan is to remove those melted cores to somewhere else – perhaps to geologic disposal, they haven’t said. But it is going to be very challenging.

[…]
RT: What is the main importance of nuclear power phase-out in your opinion?

KK: I think it’s very important that world turned from the nuclear power. It is absolutely not clean from the mining and processing of uranium to the generation of high-level radioactive waste. Then the routine radiation releases is even from normally operating nuclear power plants. But then certainly you have the disasters like Three Mile Island, Chernobyl, and Fukushima. Any notion that nuclear power is clean is obsolete at this point.

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Nuclear waste: Drone buzzes Fukushima temporary storage facility via RT

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China to build world’s first fourth-generation nuclear power plant via Cross China

BEIJING, April 20 (Xinhua) — The building of the world’s first commercial fourth-generation nuclear power plant may start in east China’s Jiangxi Province in 2017, if a plan to the effect is approved by the government, sources said.

The power plant, using high-temperature gas-cooled reactors, will be located in Ruijin, Jiangxi. Its first generating unit will be operational by 2021, officials with the state-owned China Nuclear Engineering Group Co. (CNEG) said Monday.

They are still waiting for permit from the central government, they said.

The high-temperature gas-cooled reactor is a technology independently developed by China and is best known for its inherent safety design, according to Wang Shoujun, CNEG chairman.

This technology will ensure that the fuel elements of the reactor will not be melted under any conditions and no radioactive material will be released into the environment, said Wang.

A demonstration plant using this technology has been under construction since 2012 in Rongcheng city of east China’s Shandong Province and is expected to be operational in 2017.

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Providing the Big Picture During a Nuclear or Radiological Emergency via IAEA

For one week in late April, more than 200 experts from 70 countries and five international organizations will gather at IAEA headquarters to discuss the latest trends related to assessment and prognosis in response to a nuclear or radiological emergency.

The International Experts Meeting (IEM) on Assessment and Prognosis in Response to a Nuclear or Radiological Emergency will take place from 20 to 24 April. This is the ninth in a series of such meetings organised in the framework of the IAEA Action Plan on Nuclear Safety. Participants will discuss issues, challenges and solutions, including constraints, limitations and uncertainties related to the assessment and prognosis process.

The accident at the Fukushima Daiichi Nuclear Power Plant in Japan in March 2011 showed that in an emergency Member States and the public will be very interested in the assessment of the implications an emergency will have for public safety, and will request information on how the event is likely to progress, i.e. prognosis, said Elena Buglova, Head of the IAEA’s Incident and Emergency Centre (IEC).

[…]

The meeting will cover the following topics:

  • assessment and prognosis during a nuclear emergency,
  • assessment and prognosis during a radiological emergency,
  • assessment of a nuclear or radiological emergency resulting from a nuclear security event,
  • environmental modelling and monitoring during nuclear and radiological emergencies,
  • assessment of the impact of a nuclear or radiological emergency on food, feed, drinking water and agricultural products,
  • assessment and prognosis at the international level, and
  •  provision and management of technical data to support assessment or prognosis.

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Radioactive US Aircraft Carrier Found off San Francisco Coast via San Jose Mercury News (Reader Supported News)

n a ghostly reminder of the Bay Area’s nuclear heritage, scientists announced Thursday they have captured the first clear images of a radioactivity-polluted World War II aircraft carrier that rests on the ocean floor 30 miles off the coast of Half Moon Bay.

The USS Independence saw combat at Wake Island and other decisive battles against Japan in 1944 and 1945 and was later blasted with radiation in two South Pacific nuclear tests. The Navy deliberately sank the contaminated ship in 1951 south of the Farallon Islands.

The rediscovery of the USS Independence offers a fascinating glimpse into American military history and raises old questions about the safety of the Farallon Islands Radioactive Waste Dump — a vast region overlapping what is now a marine sanctuary where the federal government dumped nearly 48,000 barrels of low-level radioactive waste between 1946 and 1970.

[…]
But word of the Independence survey stirred up lingering concerns about the nuclear waste near the Farallon Islands, an area teeming with wildlife. Retired judge and state legislator Quentin Kopp, who many years ago demanded research into the Navy’s disposal of radioactive material off Northern California before 1970, said Thursday that the question of whether the waste posed a risk to humans and wildlife was never resolved.

“If I were an elected legislator, state or federal, I would be pounding the table,” Kopp said.

Kai Vetter, a UC Berkeley nuclear engineering professor who assisted the survey, said the ocean acts as a natural buffer against radiation. And the contaminated sites are small enough that they wouldn’t work their way into the broader food chain, he added.

“The risk here to have a public health impact is extremely small,” Vetter said.

Vetter said he hopes to obtain samples of the hull of the Independence in the next year to analyze the effects of radiation and other forces on the metal. Delgado said, however, there are no plans to further examine the wreck at this time.

The Gulf of the Farallones sanctuary is a haven for wildlife, from white sharks to elephant seals and whales, despite its history as a dumping ground.

Richard Charter, a senior fellow at the Ocean Foundation, was involved in the creation of the sanctuary back in 1981. He said the radioactive waste is a relic of a dark age before the enviornmental movement took hold.

“It’s just one of those things that humans rather stupidly did in the past that we can’t retroactively fix,” he said.

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家庭ゴミで収集したスチール缶から放射性物質 via Yomiuri Online

松山市は18日、家庭ゴミとして収集したスチール缶の塊から、低レベルの放射線が検知されたと発表した。

 市によると、8日午後4時頃、収集業者がスチール缶を圧縮し た塊(横1メートル、縦50センチ、高さ30センチ)をリサイクル業者に持ち込んだところ、低レベル(毎時0・01マイクロ・シーベルト)の放射線が感知 された。市中央消防署が測定すると、最高で毎時1・3マイクロ・シーベルトが検出された。

市は18日、塊から金属製の円柱容器(直径2・3センチ、高さ3・9センチ)を発見し、放射性物質が、がん治療などに使われるラジウム226と判明した。検出された放射線量は人体に影響はないという。

続きは 家庭ゴミで収集したスチール缶から放射性物質 

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