Inter-comparison of dynamic models for radionuclide transfer to marine biota in a Fukushima accident scenario

We report an inter-comparison of eight models designed to predict the radiological exposure of radio-nuclides in marine biota. The models were required to simulate dynamically the uptake and turnover of radionuclides by marine organisms. Model predictions of radionuclide uptake and turnover using ki...

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Autores: Vives i Batlle, J., Beresford, N. A., Beaugelin-Seiller, K., Bezhenar, R., Brown, J., Cheng, J.-J., Cujic, M., Dragovic, S., Duffa, C., Fiévet, B., Hosseini, A., Jung, K. T., Kamboj, S., Keum, D.-K., Kryshev, A., LePoire, D., Maderich, V., Min, B. I., Periáñez Rodríguez, Raúl, Sazykina, T., Suh, K. S., Yu, C., Wang, C., Heling, R.
Tipo de recurso: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:2016
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/136783
Acceso en línea:https://hdl.handle.net/11441/136783
https://doi.org/10.1016/j.jenvrad.2015.12.006
Access Level:acceso abierto
Palabra clave:Hydrodynamic models
Dose rate
Fukushima
Marine biota
Radionuclide transfer
MODARIA
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spelling Inter-comparison of dynamic models for radionuclide transfer to marine biota in a Fukushima accident scenarioVives i Batlle, J.Beresford, N. A.Beaugelin-Seiller, K.Bezhenar, R.Brown, J.Cheng, J.-J.Cujic, M.Dragovic, S.Duffa, C.Fiévet, B.Hosseini, A.Jung, K. T.Kamboj, S.Keum, D.-K.Kryshev, A.LePoire, D.Maderich, V.Min, B. I.Periáñez Rodríguez, RaúlSazykina, T.Suh, K. S.Yu, C.Wang, C.Heling, R.Hydrodynamic modelsDose rateFukushimaMarine biotaRadionuclide transferMODARIAWe report an inter-comparison of eight models designed to predict the radiological exposure of radio-nuclides in marine biota. The models were required to simulate dynamically the uptake and turnover of radionuclides by marine organisms. Model predictions of radionuclide uptake and turnover using kinetic calculations based on biological half-life (TB1/2) and/or more complex metabolic modelling approaches were used to predict activity concentrations and, consequently, dose rates of 90Sr, 131I and 137Cs to fish, crustaceans, macroalgae and molluscs under circumstances where the water concentrations are changing with time. For comparison, the ERICA Tool, a model commonly used in environmental assessment, and which uses equilibrium concentration ratios, was also used. As input to the models we used hydrodynamic forecasts of water and sediment activity concentrations using a simulated scenario reflecting the Fukushima accident releases. Although model variability is important, the intercomparison gives logical results, in that the dynamic models predict consistently a pattern of delayed rise of activity concentration in biota and slow decline instead of the instantaneous equilibrium with the activity concentration in seawater predicted by the ERICA Tool. The differences between ERICA and the dynamic models increase the shorter the TB1/2 be-comes; however, there is significant variability between models, underpinned by parameter and methodological differences between them. The need to validate the dynamic models used in this intercomparison has been highlighted, partic-ularly in regards to optimisation of the model biokinetic parameters.ElsevierFísica Aplicada IRNM138: Física Nuclear Aplicada2016info:eu-repo/semantics/articleinfo:eu-repo/semantics/submittedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/136783https://doi.org/10.1016/j.jenvrad.2015.12.006reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésJournal of Environmental Radioactivity, 153 (March 2016), 31-50.https://www.sciencedirect.com/science/article/pii/S0265931X1530165X?via%3Dihubinfo:eu-repo/semantics/openAccessoai:idus.us.es:11441/1367832026-06-17T12:51:07Z
dc.title.none.fl_str_mv Inter-comparison of dynamic models for radionuclide transfer to marine biota in a Fukushima accident scenario
title Inter-comparison of dynamic models for radionuclide transfer to marine biota in a Fukushima accident scenario
spellingShingle Inter-comparison of dynamic models for radionuclide transfer to marine biota in a Fukushima accident scenario
Vives i Batlle, J.
Hydrodynamic models
Dose rate
Fukushima
Marine biota
Radionuclide transfer
MODARIA
title_short Inter-comparison of dynamic models for radionuclide transfer to marine biota in a Fukushima accident scenario
title_full Inter-comparison of dynamic models for radionuclide transfer to marine biota in a Fukushima accident scenario
title_fullStr Inter-comparison of dynamic models for radionuclide transfer to marine biota in a Fukushima accident scenario
title_full_unstemmed Inter-comparison of dynamic models for radionuclide transfer to marine biota in a Fukushima accident scenario
title_sort Inter-comparison of dynamic models for radionuclide transfer to marine biota in a Fukushima accident scenario
dc.creator.none.fl_str_mv Vives i Batlle, J.
Beresford, N. A.
Beaugelin-Seiller, K.
Bezhenar, R.
Brown, J.
Cheng, J.-J.
Cujic, M.
Dragovic, S.
Duffa, C.
Fiévet, B.
Hosseini, A.
Jung, K. T.
Kamboj, S.
Keum, D.-K.
Kryshev, A.
LePoire, D.
Maderich, V.
Min, B. I.
Periáñez Rodríguez, Raúl
Sazykina, T.
Suh, K. S.
Yu, C.
Wang, C.
Heling, R.
author Vives i Batlle, J.
author_facet Vives i Batlle, J.
Beresford, N. A.
Beaugelin-Seiller, K.
Bezhenar, R.
Brown, J.
Cheng, J.-J.
Cujic, M.
Dragovic, S.
Duffa, C.
Fiévet, B.
Hosseini, A.
Jung, K. T.
Kamboj, S.
Keum, D.-K.
Kryshev, A.
LePoire, D.
Maderich, V.
Min, B. I.
Periáñez Rodríguez, Raúl
Sazykina, T.
Suh, K. S.
Yu, C.
Wang, C.
Heling, R.
author_role author
author2 Beresford, N. A.
Beaugelin-Seiller, K.
Bezhenar, R.
Brown, J.
Cheng, J.-J.
Cujic, M.
Dragovic, S.
Duffa, C.
Fiévet, B.
Hosseini, A.
Jung, K. T.
Kamboj, S.
Keum, D.-K.
Kryshev, A.
LePoire, D.
Maderich, V.
Min, B. I.
Periáñez Rodríguez, Raúl
Sazykina, T.
Suh, K. S.
Yu, C.
Wang, C.
Heling, R.
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Física Aplicada I
RNM138: Física Nuclear Aplicada
dc.subject.none.fl_str_mv Hydrodynamic models
Dose rate
Fukushima
Marine biota
Radionuclide transfer
MODARIA
topic Hydrodynamic models
Dose rate
Fukushima
Marine biota
Radionuclide transfer
MODARIA
description We report an inter-comparison of eight models designed to predict the radiological exposure of radio-nuclides in marine biota. The models were required to simulate dynamically the uptake and turnover of radionuclides by marine organisms. Model predictions of radionuclide uptake and turnover using kinetic calculations based on biological half-life (TB1/2) and/or more complex metabolic modelling approaches were used to predict activity concentrations and, consequently, dose rates of 90Sr, 131I and 137Cs to fish, crustaceans, macroalgae and molluscs under circumstances where the water concentrations are changing with time. For comparison, the ERICA Tool, a model commonly used in environmental assessment, and which uses equilibrium concentration ratios, was also used. As input to the models we used hydrodynamic forecasts of water and sediment activity concentrations using a simulated scenario reflecting the Fukushima accident releases. Although model variability is important, the intercomparison gives logical results, in that the dynamic models predict consistently a pattern of delayed rise of activity concentration in biota and slow decline instead of the instantaneous equilibrium with the activity concentration in seawater predicted by the ERICA Tool. The differences between ERICA and the dynamic models increase the shorter the TB1/2 be-comes; however, there is significant variability between models, underpinned by parameter and methodological differences between them. The need to validate the dynamic models used in this intercomparison has been highlighted, partic-ularly in regards to optimisation of the model biokinetic parameters.
publishDate 2016
dc.date.none.fl_str_mv 2016
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/submittedVersion
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/136783
https://doi.org/10.1016/j.jenvrad.2015.12.006
url https://hdl.handle.net/11441/136783
https://doi.org/10.1016/j.jenvrad.2015.12.006
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Journal of Environmental Radioactivity, 153 (March 2016), 31-50.
https://www.sciencedirect.com/science/article/pii/S0265931X1530165X?via%3Dihub
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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