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Radiat Prot Dosimetry. 2014 Mar;158(4):479-86. doi: 10.1093/rpd/nct264. Epub 2013 Nov 8.

Monte Carlo calculation of artificial radionuclide radiation dose rates for marine species in the Western Pacific.

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  • 1Department of Engineering Physics, Tsinghua University, Beijing 100084, China.

Abstract

After the Fukushima nuclear accident, there is a widespread concern over the radioactive contamination of the marine environment. To protect non-human species, a radiation dose rate calculation model for Western Pacific marine species was established. Ten kinds of marine species in the Western Pacific were modelled by Geant4 for Monte Carlo simulation. Organisms were modelled with two ellipsoids: one represented organs and the other represented muscle. The enhanced dose rates by 10 main kinds of nuclides were calculated. According to the reported activities of three main nuclides ((134)Cs, (137)Cs and (131)I) in seawater near Fukushima coastal, the radiation risks of marine species were estimated. The results showed that the marine species near the Fukushima accident drain outlets might be at risk. But organisms that were >15 km away from the drain outlets were relatively safe.

PMID:
24214908
[PubMed - indexed for MEDLINE]
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