Journal article
Effect of Nordic ciets on ECOSYS model predictions of ingestion doses
Norwegian Radiation Protection Authority1
Radioecology and Tracer Studies, Radiation Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark2
Radiation Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark3
Risø National Laboratory for Sustainable Energy, Technical University of Denmark4
University of the Faroe Islands5
University of Gothenburg6
Radiation and Nuclear Safety Authority7
VTT Technical Research Centre of Finland Ltd.8
Icelandic Radiation Safety Authority9
The ECOSYS model is used to estimate ingestion dose in the ARGOS and RODOS decision support systems for nuclear emergency management. It is recommended that nation-specific values for several parameters are used in the model. However, this is generally overlooked when the systems are used in practice.
We have estimated first year ingestion doses in two scenarios with wet and dry deposition of 137Cs, using the ECOSYS model. We calculated doses for each country using national dietary data while keeping all other parameters at their default values. These dose calculations were then used to estimate the variation in ingestion doses resulting from the variation in the diets only.
The dietary data demonstrated that the average consumption of milk, meat and vegetables varied by a factor of 2–4 among the Nordic countries. For both scenarios, the ingestion doses varied by a factor of about 2, among the countries. For all countries, the model predictions were most sensitive to changes in milk, beef and wheat consumption.
The results demonstrate that recent and reliable dietary data are required to reliably estimate ingestion doses.
Language: | English |
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Publisher: | Oxford University Press |
Year: | 2010 |
Pages: | 182-190 |
ISSN: | 17423406 and 01448420 |
Types: | Journal article |
DOI: | 10.1093/rpd/ncq060 |
ORCIDs: | Nielsen, Sven Poul and Andersson, Kasper Grann |