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Fukushima : Build-Up In Biosphere Expected

 

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Door Hot Burmees om 15:57 op 28-03-2015 in Gezondheid
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Fukushima : Build-Up In Biosphere Expected
Posted by Edmondo Burr   in Sci/Environment, World  

Scientists have raised concern over the rate of radioactive contamination of the Pacific, due to the Fukushima nuclear accident.

  *  Expert : Plutonium-241 from Fukushima nearly 70,000 times more than atomic bomb fallout in Japan.
  *  Officials : Molten fuel now ?particle-like?, contains ?special? nuclear materials.
  *  Gov?t Labs : Large areas of oceans contaminated by plutonium from events such as Fukushima; Build-up in biosphere expected; Considerable hazard to humans.

Energy News statement :

Detection of long-lived plutonium isotopes in environmental samples by Accelerator Mass Spectrometry (AMS) ? Plutonium isotopes 239Pu, 240Pu and 242Pu are anthropogenic radionuclides emitted into the environment by nuclear activities. Pu is accumulated in the human body and hence, poses a considerable hazard to human health. Due to the long half-lives, these isotopes are present in the biosphere on large time scales and a build-up can be expected. Therefore it is important to study the contamination pathway of Pu into the drinking water? a method to detect long-lived Pu isotopes by Accelerator Mass Spectrometry (AMS) is being developed. AMS requires only few milligrams of sample material? Consequently, more samples from different locations can be taken which is essential when searching for locally increased Pu concentrations as in the Pacific Ocean after the Fukushima accident? Samples from different locations in the Pacific Ocean and from the snow-hydrosphere are planned?

Statement by: Taeko Shinonaga, head of Radioanalytical Laboratory at Helmholtz Zentrum Munchen (research institution founded jointly by Germany?s Federal Ministry of Education & Research and Bavaria?s Finance Ministry), scientists from Technische Universitat Munchen (Germany), Verhandlungen der Deutschen Physikalischen Gesellschaft 2013 meeting (emphasis added)


Lees verder:
http://yournewswire.com/fukushima-build-up-in-biosphere-expected/


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