2014年2月20日木曜日

Fukushima plant :highest 230 million becquerels per 1 liter as a contaminated water leak from a tank so far.

In Tokyo Electric Fukushima first Nuclear Power Plant on the night of 19th,

Contaminated water including the extremely highly-concentrated radioactive material leaked, and approximately 100 tons began to flow outside a cough to surround a tank.

The radioactive material which gave a beta ray including the radiostrontium was detected by extremely high density of highest 230 million becquerels per 1 liter as a contaminated water leak from a tank so far.

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100 tons of toxic water leaked at Fukushima plant

Published time: February 20, 2014 04:13
Edited time: February 20, 2014 05:04

http://rt.com/news/fukushima-new-leak-toxic-832/



Around 100 tons of highly radioactive water leaked from one of the tanks at Fukushima Daiichi nuclear plant, the plant's operator, Tokyo Electric Power Co. (TEPCO) said on Thursday.
The water reportedly spilled beyond the barrier that is set up to block it from flowing out of tank. TEPCO believes the leakage has not reached the adjacent sea, as there is no drainage nearby that flows out to the sea.
A process to stop the radioactive leak is underway. The spill is said to contain 230 million becquerels per liter of strontium and other beta ray-emitting radioactive substances.
The leak was discovered by workers on patrol at around 11:25 p.m. local time on Wednesday.
It is the latest in a series of leaks that TEPCO has struggled to control at the stricken nuclear power plant. According to previous statements from the company, as many as 20 trillion becquerels of cesium-137, 10 trillion becquerels of strontium-90 and 40 trillion becquerels of tritium have found their way into the sea by way of groundwater leaks between May 2011 and August 2013.

TEPCO has been at the center of a storm of criticism over its management of Fukushima in the wake of the 2011 earthquake-triggered tsunami that decimated the plant. Last week it was revealed that TEPCO had held back reports of dangerously high radiation levels at the plant since September.

Last Thursday the company announced it detected 5 million becquerels per liter of radioactive strontium-90 in a groundwater sample taken some 25 meters from the ocean as early as last September, Reuters reports. The legal limit for releasing strontium into the ocean is just 30 becquerels per liter.

The company refrained from reporting on the leak despite numerous requests from the Nuclear Regulation Authority (NRA). A spokesperson for TEPCO said the decision not to release the data was made because of “uncertainty about the reliability and accuracy of the September strontium reading.”

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RECORD-HIGH RADIOACTIVE WATER LEAK AT FUKUSHIMA



公開日: 2014/02/19
http://www3.nhk.or.jp/nhkworld/

RECORD-HIGH TAINTED WATER LEAK AT FUKUSHIMA PLANT

The operator of the Fukushima Daiichi nuclear plant says 100 tons of water containing record high levels of radioactive substances overflowed from a storage tank.

Tokyo Electric Power Company officials on Thursday said workers on patrol found the leak in one of the tanks located on the mountain side of the Number 4 reactor building late Wednesday night.

They said the leaked water contained an extraordinarily high 230-million becquerels per liter of beta-ray emitting substances, consisting mainly of strontium 90.

The level is about 7.6 million times the government's permissible standard for the nuclide level of water allowed to be released into the sea.

It is also the highest level of radioactive substances detected so far in the series of tank leaks at the site.

They say they also detected 9,300 becquerels per liter of cesium 137 in the water. That is more than 100 times the government's limit.

They say the water was leaking from a seam near the top of the tank. It traveled along a rainwater pipe that extends to outside the barrier surrounding the tank.

Officials say they managed to stop the leak by transferring water from the overflowing tank to a neighboring one, 6 hours after the problem was first discovered.

The utility estimates that about 100 tons of water had flowed outside the barrier. But they say the water should not have flowed into the ocean because there are no spillways near the tank that lead to the sea.
Utility officials attribute the leak to a fault in one of the valves in the pipes that transfer water from a decontamination system to storage tanks.

They say 2 other adjoining valves that lead to the troubled tank were open, leading to the unexpected flow of water into the tank and causing an overflow.

They say an alarm had gone off earlier in the day, signaling an increase in the tank's water level. But workers who went to check the tank could find no abnormalities at that time.

Officials say they are continuing their investigation, while working to recover the leaked water and the surrounding soil now contaminated by the water.

The Nuclear Regulation Authority has instructed TEPCO to check other tanks for possible leakages.

Feb. 20, 2014 - Updated 05:26 UTC

KENNEDY: US TO SUPPORT FUKUSHIMA RECOVERY

The US Ambassador to Japan says technology from the United States will contribute to recovery efforts in Fukushima Prefecture.

Caroline Kennedy spoke on Wednesday at a forum organized by Japanese and US governments. Participants held two days of talks. They discussed possible cooperation on decommissioning at the Fukushima Daiichi nuclear plant and decontamination work in the prefecture.

Kennedy said the event would give business people from both countries a chance to share their experiences, and to discuss how US technology can contribute to the recovery.

Representatives from 26 US companies with expertise in nuclear waste disposal took part. They explained what they can do to help advance the cleanup.

Members of Japanese firms operating in Fukushima also held meetings with their US counterparts.

An embassy official said the US government supports the entry of American firms in the decommissioning process in Fukushima, adding that they have extensive experience.

Feb. 19, 2014 - Updated 05:48 UTC

DPJ CALLS FOR MORE POWER FOR NUCLEAR CRISIS FUND

Japan's main opposition Democratic Party is calling for greater oversight of decommissioning and cleanup at the Fukushima Daiichi nuclear plant by a state-backed nuclear crisis fund. It says this should include powers to investigate the operator's work.

The proposal comes as the government prepares a bill to expand the role of the Nuclear Damage Liability Facilitation Fund set up to support Tokyo Electric Power Company after the nuclear accident. The bill would allow the fund to observe work to scrap the damaged reactors and decontaminate radioactive water at the plant.

The DPJ says the Fund should be given more power than the government bill provides for. The party says this will ensure the necessary work at the plant moves forward.

The DPJ proposes that the fund be authorized to investigate TEPCO and that the operator be required to provide information.

It says this will prevent the operator from neglecting its responsibilities on the grounds that its business is suffering.

The proposal also calls for greater financial transparency. It says the basis for calculating the cost of scrapping the reactors should be fully accounted for, to avoid limitless public spending.

It also recommends that the fund establish a mechanism to work closely with international experts and receive technical guidance and advice.

The Democratic Party will submit their proposal to the government on Thursday.

Feb. 19, 2014 - Updated 07:29 UTC

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NHK World
Latest News

Feb. 20, 2014 - Updated 08:35 UTC

http://www3.nhk.or.jp/nhkworld/english/news/20140220_22.html

Record-high tainted water leak at Fukushima plant

The operator of the Fukushima Daiichi nuclear plant says 100 tons of water containing record high levels of radioactive substances overflowed from a storage tank.

Tokyo Electric Power Company officials on Thursday said workers on patrol found the leak in one of the tanks located on the mountain side of the Number 4 reactor building late Wednesday night.

They said the leaked water contained an extraordinarily high 230-million becquerels per liter of beta-ray emitting substances, consisting mainly of strontium 90.

The level is about 7.6 million times the government's permissible standard for the nuclide level of water allowed to be released into the sea.

It is also the highest level of radioactive substances detected so far in the series of tank leaks at the site.

They say they also detected 9,300 becquerels per liter of cesium 137 in the water. That is more than 100 times the government's limit.

They say the water was leaking from a seam near the top of the tank. It traveled along a rainwater pipe that extends to outside the barrier surrounding the tank.

Officials say they managed to stop the leak by transferring water from the overflowing tank to a neighboring one, 6 hours after the problem was first discovered.

The utility estimates that about 100 tons of water had flowed outside the barrier. But they say the water should not have flowed into the ocean because there are no spillways near the tank that lead to the sea.
Utility officials attribute the leak to a fault in one of the valves in the pipes that transfer water from a decontamination system to storage tanks.

They say 2 other adjoining valves that lead to the troubled tank were open, leading to the unexpected flow of water into the tank and causing an overflow.

They say an alarm had gone off earlier in the day, signaling an increase in the tank's water level. But workers who went to check the tank could find no abnormalities at that time.

Officials say they are continuing their investigation, while working to recover the leaked water and the surrounding soil now contaminated by the water.

The Nuclear Regulation Authority has instructed TEPCO to check other tanks for possible leakages.

Feb. 20, 2014 - Updated 05:26 UTC

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2014年(平成26年)2月20日[木曜日]
 
極めて高濃度 汚染水100トン漏れる
 
http://www3.nhk.or.jp/news/html/20140220/k10015388331000.html

東京電力福島第一原子力発電所で19日夜、山側のタンクから極めて高濃度の放射性物質を含む汚染水が漏れ、およそ100トンがタンクを囲うせきの外に流出しました。
東京電力は、配管の弁の故障などで、移送していた汚染水が予定していなかったタンクに入ったため、あふれたとみて調べています。
19日午後11時半ごろ、福島第一原発4号機の山側にある汚染水をためるタンクから、水が漏れているのをパトロール中の作業員が見つけました。
東京電力が調べたところ、水はタンクの天板の継ぎ目から漏れ、雨どいをつたって、タンクを囲うせきの外に流出していたということで、隣接するタンクに水を移して、水位を下げるなどして、発見から6時間余りで漏えいが止まったことが確認されたということです。
せきの外に流出した汚染水の量はおよそ100トンとみられ、放射性ストロンチウムなどベータ線を出す放射性物質が、タンクからの汚染水漏れとしてはこれまでで最も高い、1リットル当たり2億3000万ベクレルという極めて高い濃度で検出されました。
また、セシウム137も国の海への放出基準の100倍余りの1リットル当たり9300ベクレルと高い濃度で検出されました。
東京電力は20日午前、臨時の記者会見を開き、「心配をおかけして大変、申し訳ありません」と陳謝しました。
原因については、処理設備から汚染水を移送する配管の途中にある1つの弁が故障していた疑いがあるほか、本来、閉まっているはずの別の2つの弁も開いていたため、予定していなかったタンクに汚染水が入り、あふれたと説明しています。
また、19日午後2時すぎ、タンクの水位が高まったことを示す警報が鳴りましたが、直後のパトロールでは異常に気付かなかったということです。
東京電力は、汚染水が漏れたタンクの近くに排水路がないため、海への流出はないとしていますが、詳しい状況を調べるとともに、漏れた汚染水や汚染水がしみ込んだ土の回収を進めることにしています。
 

規制庁が対応を指示

東京電力福島第一原子力発電所で、タンクから極めて高濃度の汚染水が漏れ出したことについて、原子力規制庁は、放射性物質がしみこんだ土を回収することや、同じタイプのタンクにも漏えいがないかなどを早急に調べて報告するよう、東京電力に指示しています。
 

漏れた汚染水の濃度は

漏れた汚染水からは、ベータ線と呼ばれる種類の放射線を出す放射性物質が、1リットル当たり2億3000万ベクレルという極めて高い濃度で検出されました。
この汚染水には、主に放射性物質のストロンチウム90が含まれていて、2億3000万ベクレルを、ストロンチウム90の海への放出基準と比較すると、760万倍余りに当たります。
 

漁業者から不安の声

汚染水がタンクから漏れたことについて、福島県沖で試験的な漁を行っている地元の漁業関係者からは、不安の声が聞かれました。
いわき市漁協の矢吹正一組合長は、「漏れた汚染水は100トンと半端な量ではない。
試験的な漁を始めた状況で、全国の消費者に不安を与えることにつながるのではないか心配だ」と話しました。
また、相馬双葉漁協の佐藤弘行組合長は、「人為的なミスによるものだとしたら絶対にあってならないことだ。
こうした事態が続けば漁業者の東京電力に対する信頼感が失われ不信感が増す。
汚染水を増やさないための地下水を、海に放出する地下水バイパスの対策への協力にも影響しかねない」と話しました。

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New radioactive water leak at Japan's Fukushima Daiichi plant

By Yoko Wakatsuki, CNN
February 20, 2014 -- Updated 1228 GMT (2028 HKT)
 
http://edition.cnn.com/2014/02/19/world/asia/japan-fukushima-daiichi-water-leak/





Tokyo (CNN) -- A large amount of radioactive water has leaked from a holding tank at Japan's troubled Fukushima Daiichi nuclear power plant, its operator said Thursday.
The leak of an estimated 100 metric tons of highly contaminated water was discovered late Wednesday, Tokyo Electric Power Company (TEPCO) said in a statement.
The tainted water flowed over a barrier around the tank and is being absorbed into the ground, TEPCO said. The plant has shut off the inflow of water into the tank and the leaking has stopped, it added.
The company doesn't believe that there was any leakage of the radioactive water into the nearby Pacific Ocean.

Since the massive earthquake and tsunami that hit northeastern Japan in March 2011 set off meltdowns at three of the reactors at the nuclear plant, TEPCO has been storing the enormous volumes of water contaminated at the site in a steadily growing collection of containers.
The company has struggled to manage the vast amounts of radioactive water, with a number of leaks reported last year.
Prime Minister Shinzo Abe's government vowed to step in to deal with the toxic water crisis at the plant that caused concern in Japan and abroad about the scale of the problem faced by TEPCO.
The leak reported Thursday is one of the largest since TEPCO reported last summer that about 300 tons of radioactive water had leaked from a tank.
CNN first learned about the latest incident on Twitter.





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Fukushima News 2/13/14: Record Groundwater Cesium; IAEA-



公開日: 2014/02/13
Mirrored from MissingSky101 on Feb 13, 2014
* Note from Sky: Record cesium level in Fukushima plant groundwater
The operator of the damaged Fukushima Daiichi plant says water samples taken from a newly-dug well contained the highest levels of radioactive cesium detected so far in groundwater at the site.
Tokyo Electric Power Company says the record levels suggest that the leakage point could be near the well.
The utility on Thursday said it had detected 54,000 becquerels per liter of cesium 137 and 22,000 becquerels per liter of cesium 134 in water samples.
The samples were taken on Wednesday from a new observation well located 50 meters from the ocean near the Number 2 reactor.
The level of cesium 137 is 600 times the government standard for radioactive wastewater that can be released into the sea.
It is more than 30,000 times the level of cesium 137 found in water samples taken from another observation well to the north last week.
TEPCO officials believe radioactive water is leaking from an underground tunnel that extends from the reactor buildings towards the ocean. They have been taking measures to prevent the tainted water from reaching the sea, but have yet to determine where the leak originates.
TEPCO suspects the leakage point is near the new well because radioactive cesium is easily absorbed into soil and is unlikely to be carried over a wide area in groundwater.

IAEA: Consider discharging contaminated water
The International Atomic Energy Agency has advised the operator of the Fukushima Daiichi nuclear plant to examine all options to treat contaminated water. These include resuming controlled discharges of radioactive water into the sea.
At Japan's request, the IAEA sent its second inspection team to the crippled nuclear power plant last November to assess efforts to scrap reactors at the facility.
On Thursday, the IAEA released its final report that was submitted to the Japanese government.
Team leader Juan Carlos Lentijo says Japan has established a good foundation to improve its strategy and allocate the necessary resources to conduct the safe decommissioning of the plant.
But Lentijo adds that the situation remains very complex and there will continue to be challenging issues that must be resolved to ensure the plant's long-term stability.
The report says the IAEA team believes it is necessary to find a sustainable solution to the problem of managing contaminated water at the plant. It says that this would require considering all options, including the possible resumption of controlled discharges to the sea.
The report adds that to pursue this option, TEPCO should prepare appropriate safety and environmental impact assessments and submit them for regulatory review.

LDP group: Nuclear power use must be transitional
A group from Japan's ruling Liberal Democratic Party has proposed that the government stipulate the role of nuclear power as 'transitional' in the country's new energy policy.
The LDP-led coalition government has commissioned a panel to draft a new master plan for the country's mid- to long-term energy policy.

EU-funded Study: Over 20,000 square miles of Japan potentially contaminated from Fukushima releases — Home to 43 million people (MAP)
http://enenews.com/eu-funded-study-56...

US Sailors' Attorney: Fukushima has left an entire generation of young people crippled physically, mentally, and genetically — Nuclear radiation is threatening entire planet (AUDIO)
http://enenews.com/us-sailors-attorne...

Fukushima: A Bombless Nuclear War
http://www.pacificfreepress.com/rss/1...

12m and 8m long cracks on concrete base of 2 tank areas / Tepco doesn't mention the possibility of land subsidence
http://fukushima-diary.com/2014/02/12...

Lawmakers say residents emailing and calling with radiation fears
House, Senate health committees hear bills calling for radiation testing
http://www.kitv.com/news/hawaii/lawma...

Many foreigners in Fukushima fled after crisis, news reporting questioned
http://www.japantimes.co.jp/news/2014...

(Now They Tell Us) Highly Radioactive Pieces Found in Naraha-Machi in June/July 2013 Came from #Fukushima I NPP, TEPCO Now Says
http://ex-skf.blogspot.ca/2014/02/now...

Radiation Makes People Invisible
http://www.fukuleaks.org/web/?p=12245

source video: http://www.youtube.com/watch?v=Fvbr0U...

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