NDLI: Environmental dose assessment using Ecolego: case study of soil from Japan

Content Provider	Springer Nature Link
Author	Krisanangkura, P. Itthipoonthanakorn, T. Udomsomporn, S.
Copyright Year	2013
Abstract	From the Fukushima incident, a number of radionuclides were released, causing radioactive contamination to the environment. Depending on their own half-lives, the radionuclides, however, will decay over time. During the decay, those radionuclides can be transferred to the ecosystem and, eventually, to humans. As part of the environmental surveillance and restoration program, radiological dose assessments have been carried out in response to the incident to prevent a potentially unacceptable dose to the public. This study focuses on the deposition of certain radionuclides in soil and their transport through the terrestrial food chain. Soil from two sites, Namie and Iitate, where radioactive contamination is evident was used as the source term. The assessment has been conducted using Ecolego, a simulation software used for conducting dose assessments of complex dynamic systems evolving over time especially in the field of radiology. Possible pathways from the soil used as the source term to humans as well as crops, forage, livestock products, and milk, for specific radioactive species have been studied. The dose assessment results of I-131, Cs-134, Cs-137, Sr-89, and Sr-90 in each compartment of the food chain are presented in this literature. The concentrations of the studied radionuclides vary from one medium to another, resulting from the characteristic of the medium itself along with other factors, such as the half-lives and transfer factors. Due to the fact that the concentrations of the radionuclides are affected by the depth of soil, there may be some uncertainty of the dose assessment results from the model.
Starting Page	443
Ending Page	450
Page Count	8
File Format	PDF
ISSN	02365731
Journal	Journal of Radioanalytical and Nuclear Chemistry
Volume Number	297
Issue Number	3
e-ISSN	15882780
Language	English
Publisher	Springer Netherlands
Publisher Date	2013-01-13
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Ecolego The Fukushima Daiich nuclear power plant accident Terrestrial food chain Contaminated soil Imported food from Japan Namie Iitate Nuclear Chemistry Physical Chemistry Nuclear Physics, Heavy Ions, Hadrons Diagnostic Radiology Inorganic Chemistry
Content Type	Text
Resource Type	Article
Subject	Spectroscopy Pollution Health, Toxicology and Mutagenesis Radiology, Nuclear Medicine and Imaging Analytical Chemistry Public Health, Environmental and Occupational Health Nuclear Energy and Engineering

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