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Catastrophe Japan - UPDATE

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Catastrophe Japan - UPDATE

Re: Catastrophe Japan - UPDATE 1 jaar, 3 maanden geleden #50556

fr3bzy Afwezig Administrator Berichten: 1317 Karma: 1666	ivbm overal spontaan lekkende kernreactoren overal btw James Cameron heading for the hills check VV
	Laast bewerkt: 1 jaar, 3 maanden geleden Door fr3bzy. Antwoord Quote

Re: Catastrophe Japan - UPDATE 1 jaar, 3 maanden geleden #50746

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Tepco Injects Boric Acid in Fukushima Plant
By Tsuyoshi Inajima – Feb 7, 2012 12:56 AM GMT+0000
www.bloomberg.com/news/2012-02-07/tepco-injects-boric-acid-into-fukushima-no-2-reactor-as-temperature-rises.html

Tokyo Electric Power Co. injected boric acid into a reactor at its crippled Fukushima nuclear plant to prevent an accidental chain reaction known as re- criticality after temperatures rose in the past week.

The temperature of the No. 2 reactor was 70.1 degrees Celsius (158 degrees Fahrenheit) as of 6 a.m. today, according to preliminary data, Akitsuka Kobayashi, a spokesman for the utility, said by phone. The reading fell from 72.2 degrees at 5 a.m. this morning, and is below the 93 degrees that’s used to define a cold shutdown, or safe state, of the reactor.

Since Feb. 1, temperatures at the bottom of the No. 2 reactor vessel have risen by more than 20 degrees Celsius, according to the company’s data. Tepco, as the utility is known, and the government announced that the Fukushima plant reached a cold shutdown on Dec. 16, nine months after the Tohoku earthquake and tsunami destroyed the nuclear station, and caused three meltdowns and radiation release.

Tepco increased the rate of water being injected into the unit to 13.5 cubic meters per hour from 10.5 cubic meters per hour at 4:24 a.m. today, it said. A cold shutdown describes a reactor’s cooling system operating at atmospheric pressure and below 93 degrees Celsius, according to the U.S. Nuclear Regulatory Commission.

Tepco switched to different piping to inject water on Jan. 26, Kobayashi said. This may have led to insufficient water reaching the melted fuel, he said.

No traces of xenon 135, which is associated with nuclear fission, were found when Tepco conducted a gas sampling of the reactor yesterday, the company said in an e-mailed statement late yesterday.

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Re: Catastrophe Japan - UPDATE 1 jaar, 3 maanden geleden #50862

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Japan TV: Professor detects 104 microSv/h near where kids walk to school — “Absurd reality” where children are right next to high-level contamination (VIDEO)

Published: February 9th, 2012 at 9:09 am ET
By ENENews
enenews.com/japan-tv-professor-detects-104-microsvh-near-where-kids-walk-to-school-the-absurd-reality-for-children-in-60-km-from-fukushima-meltdowns-video

kingo999.blog.fc2.com/blog-entry-492.html

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We willen u bedanken: ninti

Re: Catastrophe Japan - UPDATE 1 jaar, 3 maanden geleden #50972

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Fukushima reactor readings raise reheating concern

Temperature inside No 2 reactor may have risen to 82C, and Tepco reportedly steps up cooling efforts
(EDIT: 90 c )

Concern is growing that the Fukushima Daiichi nuclear power plant in Japan is no longer stable after temperature readings suggested one of its damaged reactors was reheating.

The plant's operator, Tokyo Electric Power (Tepco), said the temperature inside No 2 reactor – one of three that suffered meltdown after last year's earthquake and tsunami – may have reached 82C on Sunday.

Tepco said there was no evidence that the melted fuel inside had reached criticality. The utility reportedly increased the amount of cooling water being injected into the reactor along with a boric acid solution, which is used to prevent the fuel from undergoing sustained nuclear reactions.

Confirmation that the temperature has risen above 80C could force the government to reverse its declaration two months ago that the crippled plant was in a safe state known as cold shutdown.

Cold shutdown is achieved when the temperature inside the reactors remains below 100C and there is a significant reduction in radiation leaks. Given that Tepco assumes a margin of error of 20C, the actual temperature could have risen to 102C.

Plant workers are unable to take accurate readings of the temperature inside the damaged reactor because radiation levels are still too high for them to enter and examine the state of the melted fuel, which is thought to be resting at the bottom of the reactor's pressure vessel.

The result has been a series of wildly different readings: two other thermometers positioned at the bottom of No 2 reactor showed the temperature at 35C, local media reported.

Tepco said it did not know the cause of the apparent temperature rise, but speculated that it might be due to problems with the supply of coolant or a faulty thermometer.

"We believe the state of cold shutdown is being maintained," said Junichi Matsumoto, a company spokesman. "Rather than the actual temperature rising, we believe there is high possibility that the thermometer concerned is displaying erroneous data."

Tepco was forced to inject additional cooling water into the same reactor last week after the temperature started rising at the beginning of the month.

www.guardian.co.uk/world/2012/feb/12/fukushima-reactor-reheating-concern?newsfeed=true

Laast bewerkt: 1 jaar, 3 maanden geleden Door ninti.

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Re: Catastrophe Japan - UPDATE 1 jaar, 3 maanden geleden #51003

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Mystery: Radioactive black substance reported 25km from Fukushima — Latest measurement over 95 µSv/h — Strong alpha emitter detected (PHOTOS)

Published: February 12th, 2012 at 9:22 pm ET
By ENENews
enenews.com/mystery-radioactive-black-substance-found-25km-from-fukushima-latest-measurement-over-95-%C2%B5svh-strong-alpha-emitter-detected-photos

Paraphrased translation provided by N.K., a concerned citizen in Japan

What follows is a summary of a series blog posts about mysterious radioactive black materials found in and around Minami-Soma City, Fukushima Prefecture, about 25km from the plant.

Black materials looking like sand or powder were found in the Haramachi-ku area of Minami-Soma City.

A similar substance was also found in nearby Soma City.

The materials can reportedly be found many places in Minami-Soma city and Soma city areas.

Here are several recent measurements:

Jan. 27: Measured values in Haramachi-ku using the Inspector +

901 cpm: gamma ray only, with WT Plate, 1cm above GND
13,380 cpm: gamma + beta + alpha, without WTP, 1cm above GND
10,330 cpm: gamma + beta + alpha, with XEROX paper, 1cm above GND

This means that XEROX paper cuts off 3,050 cpm alpha-ray, so the quite strong alpha-ray is radiated from the materials.

Feb. 4: The materials could not be found at Fukushima City, 60km from the plant. Only gamma-ray were strong.

Feb. 6: Normal sand in the area mainly contains Cs134 and Cs137

Gamma-ray: 959 cpm
Gamma + beta + alpha: 2,146 cpm

Feb. 6: Black material in sand

gamma-ray: 3,274 cpm
gamma + beta + alpha: 18,370 cpm

Radiation of the black materials were very strong when compared to the normal-colored sand. The materials have unbelievable beta + alpha.

Feb. 9: Piece of paper cuts shields 7,230 cpm

gamma + beta + alpha: 31,680 cpm, without the paper
gamma + beta + alpha: 24,450 cpm, with the paper

TERRA MKS-05 measures only gamma and beta-ray, XEROX paper did not make much difference

11.53 micro S/h: gamma-ray only, without paper
17.56 micro S/h: gamma + beta, without paper
16.98 micro S/h: gamma + beta, with paper

Feb. 11: Latest measurement of the black materials

via links op die pagina meer foto's te zien

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Re: Catastrophe Japan - UPDATE 1 jaar, 2 maanden geleden #52274

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Verrassend zeg

nu nog even vertellen wat er nu! gebeurd ipv dat geheim houden

Regering Japan verzweeg kernramp
Laatste update: 9 maart 2012 20:01

Tokio - Vier uur nadat een tsunami de Fukushima Dai-ichi-kerncentrale had overspoeld wist de Japanse regering dat de kernen in de reactoren dreigden te smelten.

Maar die kennis hield zij maandenlang voor zich. Pas vijf dagen later gaf de toenmalige premier Naoto Kan lucht aan zijn zorg dat de kernramp Tsjernobyl zou kunnen doen verbleken.

Dat blijkt uit documenten die vrijdag, twee dagen voor de eerste verjaardag van de ramp, zijn vrijgegeven.

meer: www.nu.nl/buitenland/2760014/regering-japan-verzweeg-kernramp.html

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Re: Catastrophe Japan - UPDATE 1 jaar, 2 maanden geleden #52296

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Most Important Video of the Year? Asahi TV: “Unbelievable” — If Unit 4 pool gets a crack from quake and leaks, it would be end for Tokyo -Expert — Doesn’t have to be large tremor, already shaken many times

Published: March 10th, 2012 at 3:47 am ET
By ENENews

enenews.com/important-video-year-asahi-tv-unbelievable-unit-4-pool-crack-leaks-during-quake-be-tokyo-japan-expert-doesnt-be-large-quake-already-shaken-many-times-serious-problem#comments

You may think it's "already one year" [since the accident] but it's actually "still only one year."

True cause of the Fukushima Daiichi accident still hasn't been identified.

[...]

Still, they are talking about resuming the operation of nuclear plants.

[...]

But is the accident over? Is it really over? For example, Unit 4. In fact, Dr. Koide of Kyoto University is worried about it most.

The present conditions of Unit 4 are like this. You see, almost no walls. They were blown off, and honestly speaking, the Unit 4 is a wreck. A wreck.

[...]

Now, what if an earthquake occurred right now and the water in the pool started to leak?

I asked this question to Dr. Koide. Please watch this video.

[...]

If a large aftershock occurred and the wall here collapsed, the water in the pool would leak out and the spent fuel would not be cooled any more. Then, they would start to melt, probably completely. And huge amount of radiation contained in the spend fuel would be released outside, with no walls to block it.

We'll never know when an earthquake comes.

[...]

the fuel rods, which are probably damaged to some degree

[...]

What if a destructive earthquake occurred during those years?

That would be the end. The end? Yes.

You see, that would be the end.

Unbelievable...unbelievable.

This is a serious problem.

TEPCO knows dealing with this problem is most important for now.

[...]

So if a large earthquake should occur from now until that January...

No, it doesn't have to be large. Unit 4 has been shaken many times already.

If the pool got cracks after another earthquake and the water started to leak out, Dr. Koide said that would be the end.

The end for a wide area including Tokyo.

Oh my, and they are talking about resuming nuclear plant operation.

I think resuming the operation is out of the question at least until the results from the investigation by NAIIC come out.

[...]

I want them to let us vote again.

They talk about resuming the operation after gaining understanding from local communities. But for this issue, I think the whole country of Japan, or the whole area including the neighboring countries, is a "local community" that would be affected. We should keep in mind that it's not only the sites of the plants that should be considered as "local communities."

We should recognize the accident is far from over and the crisis is still ongoing.

Yes. And excuse me, I have a correction to make. Retrieving the fuel rods is planned to start not from January, but from...when? December next year? (Yes.)

December next year? No kidding!

Sorry, I took a too-favorable view.

The members of the Diet who want to resume, I want them to resign.

We need to reconsider this issue.

I want to know the exact names of the members of the Diet who want to resume, and ask them for their opinions.

[...]

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Re: Catastrophe Japan - UPDATE 20-3 1 jaar, 2 maanden geleden #52366

Dromen Afwezig Administrator Berichten: 4680 Karma: 3136	Een jaar later Check dit ook: nos.nl/video/350178-hoe-is-het-in-fukushima.html Er hebben DRIE meltdowns(!!!) plaatsgevonden...
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Re: Catastrophe Japan - UPDATE 20-3 1 jaar, 1 maand geleden #53609

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Als we Xander mogen geloven zijn we echt fucked .....

Japanse diplomaat: Instorten Fukushima reactor 4 bedreigt hele mensheid
'Radioactief materiaal Fukushima kan menselijke beschaving vernietigen'

Mitsuhei Murata, de voormalige Japanse ambassadeur in Zwitserland, heeft VN secretaris-generaal Ban Ki-moon in een brandbrief gewaarschuwd dat als het zwaar beschadigde reactorgebouw nummer 4 van de rampcentrale Fukushima Daiichi instort, de hele wereld eeuwenlang radioactief besmet zal worden. In een op 22 maart gehouden toespraak voor een comité van de Japanse Eerste Kamer sprak Murata zelfs van 'een wereldwijde ramp zoals we nog nooit eerder hebben meegemaakt.'

Reactorgebouw 4 raakte bij de aardbeving en tsunami van vorig jaar zwaar beschadigd en dreigt bij een naschok of nieuwe beving compleet in te storten. Hierdoor zal niet alleen het op 30 meter hoogte gebouwde gebruikte brandstofreservoir -waar 1535 hoog radioactieve brandstofstaven in zijn opgeslagen- worden verwoest, maar zullen alle zes reactors uitvallen en zal het gezamenlijke gebruikte brandstofreservoir, dat zich op slechts 50 meter afstand van gebouw 4 bevindt en waar 6375 staven in zijn opgeslagen, eveneens worden beschadigd.

In beide gevallen zullen de brandstofstaven aan de open lucht worden blootgesteld, wat 'met zekerheid een ongekende wereldwijde ramp zal veroorzaken.' Murata benadrukte dat de verantwoordelijkheid van Japan tegenover de rest van de wereld 'onmeetbaar' is, omdat de hele planeet eeuwenlang de gevolgen van zo'n ramp zal moeten dragen.

'Menselijke beschaving kan worden vernietigd'
In totaal bevinden er zich maar liefst 11421 gebruikte brandstofstaven op het terrein van de Fukushima centrale. Het bedwingen van de radioactieve straling is een uiterst gecompliceerde taak, aangezien de brandstofstaven niet gewoon met een kraan kunnen worden opgetild maar afgeschermd moeten worden door water en versterkte stralingswerende materialen. Het totaal aan gebruikte staven bevat ongeveer 85 x de hoeveelheid radioactieve Cesium-137 die destijds bij de kernramp in Chernobyl is vrijgekomen. Daarmee heeft de centrale één van de hoogste radioactieve concentraties ter wereld, een hoeveelheid die 'het milieu en de beschaving op de wereld zou vernietigen... Het gaat hier om het overleven van de mensheid.'

In zijn brief aan Ban Ki-moon schreef Murata dat 'het niet overdreven is te stellen dat het lot van Japan en de hele wereld afhangt van reactor 4. Dit wordt door de betrouwbaarste experts zoals dr. Arnie Gundersen en dr. Fumiaki Koide bevestigd.' (1)

Bron:
xandernieuws.punt.nl/?id=657572&r=1&tbl_archief=&

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Re: Catastrophe Japan - UPDATE 20-3 1 jaar, 1 maand geleden #53664

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Radioactive particles from Japan detected in California kelp
April 9, 2012 | 1:04 pm
-- Victoria Kim
latimesblogs.latimes.com/lanow/2012/04/calif-kelp-radioactivity-study.html

Radioactive particles released in the nuclear reactor meltdown in Fukushima, Japan, following the March 2011 earthquake and tsunami were detected in giant kelp along the California coast, according to a recently published study.

Radioactive iodine was found in samples collected from beds of kelp in locations along the coast from Laguna Beach to as far north as Santa Cruz about a month after the explosion, according to the study by two marine biologists at Cal State Long Beach.

The levels, while most likely not harmful to humans, were significantly higher than measurements prior to the explosion and comparable to those found in British Columbia, Canada, and northern Washington state following the Chernobyl disaster in 1986, according to the study published in March in the journal Environmental Science & Technology.

Giant kelp, or Macrocystis pyrifera, is a particularly good measure of radioactive material in the environment because it accumulates iodine, researchers said. They wrote that radioactive particles released into the atmosphere, in particular radioactive isotope iodine 131, made its way across the Pacific, then was likely deposited into the ocean during a period of significant rain shortly after the meltdown in Japan.

The highest levels were found in Corona del Mar. Researchers wrote that the levels were probably highest there because the kelp is also exposed to urban runoff, which may have increased the amount of rainfall it received.

The study’s authors said that while the effect of radioactive material in kelp is not well known, it would have been consumed by organisms that feed on the kelp such as sea urchins or crustaceans. Certain species of fish, including opaleye, halfmoon or senorita may be particularly affected because their endocrine systems contain iodine, according to researchers.

"Radioactivity is taken up by the kelp and anything that feeds on the kelp will be exposed to this also," Steven Manley, the study's lead author, said in a statement released by Cal State Long Beach. "It enters the coastal food web and gets dispersed over a variety of organisms ... It's not a good thing, but whether it actually has a measureable detrimental effect is beyond my expertise."

The researchers also analyzed kelp from Sitka, Alaska, for comparison, but did not find radioactivity. The kelp there may not have been exposed to the same degree because of atmospheric patterns.

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Re: Catastrophe Japan - UPDATE 20-3 1 jaar, 1 maand geleden #53665

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Former Prime Minister Tomiichi Murayama said Sunday it is regrettable that he changed the then Japan Socialist Party’s policy to an acceptance of nuclear power stations while he was in office. [...]

Murayama expressed opposition to the government’s efforts toward resuming idled reactors at the Oi nuclear power plant in Fukui Prefecture, saying the government has not yet provided a satisfactory explanation to the public regarding why the nuclear crisis at the Fukushima Daiichi power plant occurred. [...]

“It was imprudent and it was a failure. I want to apologize [...] I’m filled with a strong feeling that I should not accept nuclear power stations so I can make up for my mistake” – Tomiichi Murayama, Japan’s Prime Minister 1994-96

Read the report here

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Re: Catastrophe Japan - UPDATE 1 jaar, 1 maand geleden #53667

kniertje Afwezig Junior QFF-er Berichten: 32 Karma: 34	Hier een interessante,maar lange (58minuten)verhandeling over het hoe en waarom het zo gevaarlijk is en nog wordt; archive.org/details/scm-30754-drhelencaldicottwhatwelearnedf
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Re: Catastrophe Japan - UPDATE 20-3 1 jaar, 1 maand geleden #53669

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FreeElectron schreef:

Dit is dé kracht van Xandernieuws. En daarom bezoek ik xandernieuws niet meer. Bij de bronvermelding word er nergens verteld dat de hele wereld ddwwood gaat. En ook niet dat reactor 4 de mensheid bedreigd, en wat Ban Ki-moon zegt word in een to-taal ander perspectief gezet.

Ook zoiets, blader bij Xandernieuws eens terug naar paar jaar geleden... Je lagt je kapot

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Re: Catastrophe Japan - UPDATE 20-3 1 jaar, 1 maand geleden #53689

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Radioactive particles from Japan detected in California kelp
April 9, 2012 | 1:04 pm
latimesblogs.latimes.com/lanow/2012/04/calif-kelp-radioactivity-study.html

Radioactive particles released in the nuclear reactor meltdown in Fukushima, Japan, following the March 2011 earthquake and tsunami were detected in giant kelp along the California coast, according to a recently published study.

Radioactive iodine was found in samples collected from beds of kelp in locations along the coast from Laguna Beach to as far north as Santa Cruz about a month after the explosion, according to the study by two marine biologists at Cal State Long Beach.

The levels, while most likely not harmful to humans, were significantly higher than measurements prior to the explosion and comparable to those found in British Columbia, Canada, and northern Washington state following the Chernobyl disaster in 1986, according to the study published in March in the journal Environmental Science & Technology.

Giant kelp, or Macrocystis pyrifera, is a particularly good measure of radioactive material in the environment because it accumulates iodine, researchers said. They wrote that radioactive particles released into the atmosphere, in particular radioactive isotope iodine 131, made its way across the Pacific, then was likely deposited into the ocean during a period of significant rain shortly after the meltdown in Japan.

The highest levels were found in Corona del Mar. Researchers wrote that the levels were probably highest there because the kelp is also exposed to urban runoff, which may have increased the amount of rainfall it received.

The study’s authors said that while the effect of radioactive material in kelp is not well known, it would have been consumed by organisms that feed on the kelp such as sea urchins or crustaceans. Certain species of fish, including opaleye, halfmoon or senorita may be particularly affected because their endocrine systems contain iodine, according to researchers.

“Radioactivity is taken up by the kelp and anything that feeds on the kelp will be exposed to this also,” Steven Manley, the study’s lead author, said in a statement released by Cal State Long Beach. “It enters the coastal food web and gets dispersed over a variety of organisms … It’s not a good thing, but whether it actually has a measureable detrimental effect is beyond my expertise.”

The researchers also analyzed kelp from Sitka, Alaska, for comparison, but did not find radioactivity. The kelp there may not have been exposed to the same degree because of atmospheric patterns.

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Re: Catastrophe Japan - UPDATE 20-3 1 jaar geleden #54162

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Via Mesa uit de schreeuwdoos:

"Als reactor 4 in Fukushima instort, wordt leven op aarde weggeveegd"

Het komt uit de mond van de Japanse diplomaat Akio Matsumura: de nucleaire ramp in Fukushima, de kerncentrale die door de aardbeving en tsunami van maart vorig jaar zwaar werd getroffen, kan uitmonden in een nog grotere ramp die alle leven op onze planeet zou wegvegen. Amerikaanse specialisten delen zijn bezorgdheid.

Het probleem situeert zich voornamelijk in reactor vier van de Fukushima Dai-Ichi site.

Staven met gebruikte splijtstof
Mitsuhei Murata, voormalig Japans ambassadeur in Zwitserland: "Als het zwaar gehavende gebouw van reactor 4 instort, zullen we alle zes de reactoren moeten opgeven vanwege de vrijgekomen radioactiviteit. Maar dat zou ook gevolgen hebben voor het bad met gebruikte splijtstof waarin 6.375 staven met splijtstof zitten en dat op vijftig meter van reactor 4 ligt".

"85 keer zoveel Cesium 37 als in Tsjernobyl"
Het totaal aantal radioactieve staven splijtstof op de Fukushima-site die momenteel niet beschermd zijn, bedraagt 11.421. Dat aantal vertegenwoordigt, "onder andere", 85 keer de hoeveelheid Cesium 137 die bij de kernramp in Tsjernobyl vrijkwam. Indien reactor 4 instort, zou het minstens vijftig jaar duren om het vrijkomen van radioactiviteit te stoppen.

Murata benadrukt dat de radioactieve brandstofstaven niet ingekapseld zijn maar aan de lucht zijn blootgesteld op de tweede verdieping van reactor 4.

Catastrofe zonder voorgaande
Mocht het gebouw instorten, bijvoorbeeld door een nieuwe aardbeving, of mocht er water wegsijpelen, zou dat een wereldwijde catastrofe zonder voorgaande veroorzaken. Hij beseft dat de verantwoordelijkheid van Japan tegenover de rest van de wereld "onmetelijk" is. Dergelijke ramp zou het leven op aarde eeuwenlang schier onmogelijk maken.

Amerikaanse hulp
De Amerikaanse Democratische senator Ron Wyden, lid van het energiecomité in de schoot van de Amerikaanse regering, bezocht onlangs de kerncentrale van Fukushima. Ook hij maakt zich zorgen om de blootliggende gebruikte splijtstof van reactor 4.

Hij stuurde inmiddels brieven aan de Japanse ambassadeur in de VS Ichiro Fujusaki, aan Amerikaans buitenlandminister Hillary Clinton, aan de Japanse minister voor Energie Steven Chu en aan Gregory Jaczko, voorzitter van de Nucleaire Toezichtscommissie, waarin hij hen vraagt hun kabinetten voorbereidingen te laten treffen om uitbater TEPCO hulp te verlenen bij het zo snel mogelijk beveiligen van de hele site in Fukushima.

"Het vrijkomen van radioactiviteit in eender welke reactor, voornamelijk die in reactor 4 - die het meeste en de heetste splijtstof bevat - zou kunnen resulteren in meer vrijgekomen straling dan bij het initiële ongeval gebeurde", schrijft hij daarin.

Risico op aardbevingen onderschat
"Het plan dat TEPCO in december vorig jaar ontplooide, stelt dat het tot tien jaar zal duren om de verbruikte splijtstof veilig te verwijderen. Dit plan houdt echter buitengewone en aanhoudende risico's in indien er opnieuw seismische activiteit zou plaatsgrijpen. Het risico op aardbevingen op de site is altijd zwaar onderschat en blijft onopgelost. Ik kijk ernaar uit van u te vernemen welke inspanningen kunnen geleverd worden om dit proces te versnellen en hoe de Verenigde Staten hulp kunnen verlenen aan de Japanse autoriteiten bij het controleren van het werk dat TEPCO levert. Ik wil ook graag vernemen wat er ondernomen wordt om voorspellingen van toekomstige tsunami's te verbeteren", aldus Wyden.