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Oud 7 oktober 2007, 01:48   #1
C2C
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Standaard Kernenergie-ongeluk Windscale (1957) veel erger dan eerst gezegd - ook bij ons

Het Windscale-accident was veel erger dan gedacht en heeft veel meer kankers veroorzaakt in het VK en Europa dan eerst was aangenomen.

Sinds 1957 zijn de epidemiologische onderzoekstechnieken sterk verbeterd en op basis daarvan zijn de nu correcte cijfers gepubliceerd.

Intussen heeft de kern-lobby continu gelogen over de impact van die ramp.


Citaat:
Windscale fallout underestimated

The radioactive fallout from a nuclear accident that rocked Britain 50 years ago was underestimated, scientists say.

In 1957, a fire at the Windscale nuclear reactor in Cumbria led to a release of radioactive material that spread across the UK and Europe.

But new research claims the incident generated twice as much radioactive material and caused dozens more cancers than was previously thought.

The research was published in the journal Atmospheric Environment.

Risky act
The Windscale site was home to Britain's first two nuclear reactors - the Windscale Piles - which were constructed to produce plutonium and other materials for the UK's nuclear weapons programme.

But the rush to build them at a time when little was known about nuclear reactors led to disaster.

On 10 October 1957, a failure to properly control the temperature of graphite control rods within the reactor sparked a devastating fire, which caused radioactive contamination to spew into the atmosphere.

The fire was eventually put out with water - a risky act which could have caused an explosion - but a radioactive cloud was already spreading far and wide.

At the time of the accident the levels and spread of the radioactive materials was estimated, and measures were put in place to limit radioactive contamination.

But a new study carried out by John Garland, formerly of the UK Atomic Energy Authority, and Richard Wakeford, a visiting professor at the University of Manchester, suggests the contamination of the environment may have been much higher.

The team carried out a re-analysis of data taken from environmental monitoring of air, grass and vegetation and combined this with computer models that revealed how the radioactive cloud would have spread from the reactor with the meteorological conditions at that time.

They confirmed radioactive iodine and caesium were released, as well as polonium and a very small amount of plutonium, but found that the levels would have been higher than previously thought.

John Garland said: "The reassessments showed that there was roughly twice the amount than was initially assessed."

This would have also impacted the numbers of cancers that the accident would have caused, said the authors.

Previously, it was thought that the radiation would have eventually led to about 200 cases of cancer, but the new contamination figures suggest it could have caused about 240.

The researchers said most of the radioactive materials released had now decayed and posed no ongoing risk, but small quantities of caesium and plutonium remained.

Paul Howarth, director of research at the Dalton Nuclear Institute at Manchester University, said a repeat of the Windscale incident would not happen today because the design of modern nuclear reactors was completely different.
http://news.bbc.co.uk/2/hi/science/nature/7030536.stm


De leugenmachine van de kernlobby is natuurlijk oppermachtig en zal ons altijd blijven voorliegen. Ook over zogenaamd "duurzame" (lol) en "veilige" (lmao) centrales van de vierde generatie.

We kunnen natuurlijk ook beslissen niet lui maar moedig te zijn en de kernlobby gewoon blootgeven voor wat hij is: ver doorgevoerd staatskapitalisme waar een kleine kliek haaien baat bij heeft.


Het blijft een raadsel waarom sommige mensen uit de (vooral lagere) middenklasse toch het kamp van de kanker-lobby kiezen. Komt dat omdat ze onwetend zijn? Of is dat een gevolg van rancune ("die linkse types zijn altijd correct, en wij altijd fout, en we geven dat niet graag toe, dus gaan we ne keer goed op hen afgeven zie" - de hypothese van de miserabele petitesse is wel degelijk denkbaar).
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The world is one big spreadsheet.
"Capitalism is the extraordinary belief that the nastiest of men, for the nastiest of motives will somehow work for the benefit of all" ― John Maynard Keynes

Laatst gewijzigd door C2C : 7 oktober 2007 om 01:52.
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