Modification of the dynamic radionuclide uptake model BURN by salinity driven transfer parameters for the marine foodweb and its integration in POSEIDON-R

Heling, R.

doi:10.1051/radiopro/20095135

Cited by 20 publications

(13 citation statements)

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“…The module for the uptake of radionuclides by marine organisms (BURN) is dynamic and based on prey-predator -relations. This avoids the use of concentration factors (CF) from the literature, which are often conservative, and gives realistic concentrations of radionuclides in biota [13,14]. The module is salinity driven for caesium and strontium uptake [14].…”

Section: Poseidon-r (Modeller 8)mentioning

confidence: 99%

“…These models can be simply calculated in a spreadsheet (modeller 7 used a spreadsheet according to the models in [4]) or by using an available software package. The software packages used in this project are: PC-CREAM (98 and 08 versions), IMPACT, CROM, SYMBIOSE, CLRP, POSEIDON (POSEIDON-R (RODOS)), and RDEMO [3,4,[9][10][11][12][13][14][15]. Below are brief descriptions of some of these software packages.…”

Section: Software Packages and Models Used For Scenario A By The Modementioning

confidence: 99%

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Reference methodologies for radioactive controlled discharges an activity within the IAEA’s program environmental modelling for radiation safety II (EMRAS II)

et al. 2011

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Abstract. In January 2009, the IAEA EMRAS II (Environmental Modelling for Radiation Safety II) program was launched. The goal of the program is to develop, compare and test models for the assessment of radiological impacts to the public and the environment due to radionuclides being released or already existing in the environment; to help countries build and harmonize their capabilities; and to model the movement of radionuclides in the environment. Within EMRAS II, nine working groups are active; this paper will focus on the activities of Working Group 1: Reference Methodologies for Controlling Discharges of Routine Releases. Within this working group environmental transfer and dose assessment models are tested under different scenarios by participating countries and the results compared. This process allows each participating country to identify characteristics of their models that need to be refined. The goal of this working group is to identify reference methodologies for the assessment of exposures to the public due to routine discharges of radionuclides to the terrestrial and aquatic environments. Several different models are being applied to estimate the transfer of radionuclides in the environment for various scenarios. The first phase of the project involves a scenario of nuclear power reactor with a coastal location which routinely (continuously) discharges 60 Co, 85 Kr, 131 I, and 137 Cs to the atmosphere and 60 Co, 137 Cs, and 90 Sr to the marine environment. In this scenario many of the parameters and characteristics of the representative group were given to the modellers and cannot be altered. Various models have been used by the different participants in this inter-comparison (PC-CREAM, CROM, IMPACT, CLRP POSEIDON, SYMBIOSE and others). This first scenario is to enable a comparison of the radionuclide transport and dose modelling. These scenarios will facilitate the development of reference methodologies for controlled discharges.

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Section: Poseidon-r (Modeller 8)mentioning

confidence: 99%

Section: Software Packages and Models Used For Scenario A By The Modementioning

confidence: 99%

Reference methodologies for radioactive controlled discharges an activity within the IAEA’s program environmental modelling for radiation safety II (EMRAS II)

et al. 2011

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“…The major fraction Cs-137 was transferred to the bottom sediments in the subsequent reservoirs of the Dnieper River before it could reach the DBE. Model tests with POSEIDON for a standard discharges have been presented in an earlier study [4]; the current model application focuses on the validation with measurement data concerning radiocaesium and radiostrontium levels in biota in the DBE.…”

Section: Application Of Poseidon -Burn On the Dnieper Bug Estuarymentioning

confidence: 99%

“…The salinity driven uptake model in BURN governs the uptake rates in the various aquatic organisms -for Cs-137 it regulates the uptake in phytoplankton, and for Sr-90 both the uptake in phytoplankton and in fish, the latter via the uptake of the radionuclide a the gills, inversely proportional with the salinity, see [4]. The equations of the potassium and calcium concentration on the basis of salinity are given here:…”

Section: Application Of Poseidon -Burn On the Dnieper Bug Estuarymentioning

confidence: 99%

“…When often the information on K + and Ca 2+ is lacking, a sub-model was implemented in BURN to relate the concentrations of these cations with the easy-to-obtain parameter salinity. This was tested among others on the Dnieper Bug Estuary (DBE) in 2008 [4]. In 2011 a data sets on radiocaesium and radiostrontium became available from the Institute of Hydro-meteorology in Ukraine [1].…”

Section: Introductionmentioning

confidence: 99%

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The validation of the dynamic food chain model BURN-POSEIDON on Cs-137 and Sr-90 data of the Dnieper-Bug estuary, Ukraine

Heling

2011

Radioprotection

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Abstract. The uptake of radioceasium and radiostrontium in biota in dose assessment models is mostly estimated on the basis of Concentration Factors (CF). For accidental releases, the dynamical foodweb model BURN has been implemented in the coastal model POSEIDON (part of the Decision Support System RODOS). BURN can be applied on water bodies with different salinity levels, since in the model the uptake of radioceasium and radiostrontium in phytoplankton is governed by potassium and calcium in the water, which are calculated via the easier-to-obtain parameter salinity. Recently a dataset on radiocaesium and radiostrontium has been collected for various aquatic organisms in the Dnieper-Bug Estuary (DBE) in Ukraine, which enabled model validation with BURN. Considering the limitation of compartment models and the fact BURN is a predictive model, with fixed model parameters, the model results are within a reasonable range with the measurement data. Besides comparison with measurement data, the model calculations were also used to derive values for CF and compared with literature, which gave reasonable results for Cs-137 in fish and molluscs. For Sr-90 however, the calculated values exceeded the levels given in literature, since equilibrium between radionuclides in biota and water is not reached. Longer time periods for the radionuclide flux into the DBE, both from the Dnieper and the Black Sea are required to obtain high quality model results for the years after 1989.

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Radioactivity in the Marine Environment

Batlle

2012

Encyclopedia of Sustainability Science and Technology

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Modification of the dynamic radionuclide uptake model BURN by salinity driven transfer parameters for the marine foodweb and its integration in POSEIDON-R

Cited by 20 publications

References 3 publications

Reference methodologies for radioactive controlled discharges an activity within the IAEA’s program environmental modelling for radiation safety II (EMRAS II)

Reference methodologies for radioactive controlled discharges an activity within the IAEA’s program environmental modelling for radiation safety II (EMRAS II)

The validation of the dynamic food chain model BURN-POSEIDON on Cs-137 and Sr-90 data of the Dnieper-Bug estuary, Ukraine

Radioactivity in the Marine Environment

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