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

Batlle, J. Vives i; Beresford, N.A.; Beaugelin­-Seiller, K.; Bezhenar, Roman; Brown, Justin; Cheng, Jing-Jy; Ćujić, Mirjana; Dragović, Snežana; Duffa, Céline; Fiévet, Bruno; Hosseini, A.; Jung, Kyung Tae; Kamboj, S.; Keum, D.-K.; Крышев, А. И.; LePoire, D.; Maderich, Vladіmir; Min, B. I.; Periáñez, R.; Сазыкина, Т. Г.; Suh, Kyung-Suk; Yu, C.; Wang, Cheng; Heling, R.

doi:10.1016/j.jenvrad.2015.12.006

Cited by 50 publications

(18 citation statements)

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“…Comparison of the concentration of 137 Cs in the sediment and benthic invertebrates (Sohtome et al, 2014) and in the demersal fishes (Buesseler et al, 2012;Wada et al, 2013;Tateda et al, 2013) suggests that the continual ingestion of organic matter from sediments can be an important contamination pathway for all components of the benthic food web. However, in most of the benthic food web models applied to the FDNPP accident, the deposit feeding is not included as a transfer mechanism in the food chain (Tateda et al, 2013(Tateda et al, , 2015(Tateda et al, , 2016Keum et al, 2015;Vives i Batlle et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Transfer of radiocaesium from contaminated bottom sediments to marine organisms through benthic food chains in post-Fukushima and post-Chernobyl periods

et al. 2016

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Abstract. After the earthquake and tsunami on 11 March 2011 damaged the Fukushima Dai-ichi Nuclear Power Plant (FDNPP), an accidental release of a large amount of radioactive isotopes into both the air and the ocean occurred. Measurements provided by the Japanese agencies over the past 5 years show that elevated concentrations of 137Cs still remain in sediments, benthic organisms, and demersal fishes in the coastal zone around the FDNPP. These observations indicate that there are 137Cs transfer pathways from bottom sediments to the marine organisms. To describe the transfer quantitatively, the dynamic food chain biological uptake model of radionuclides (BURN) has been extended to include benthic marine organisms. The extended model takes into account both pelagic and benthic marine organisms grouped into several classes based on their trophic level and type of species: phytoplankton, zooplankton, and fishes (two types: piscivorous and non-piscivorous) for the pelagic food chain; deposit-feeding invertebrates, demersal fishes fed by benthic invertebrates, and bottom omnivorous predators for the benthic food chain; crustaceans, mollusks, and coastal predators feeding on both pelagic and benthic organisms. Bottom invertebrates ingest organic parts of bottom sediments with adsorbed radionuclides which then migrate up through the food chain. All organisms take radionuclides directly from water as well as food. The model was implemented into the compartment model POSEIDON-R and applied to the north-western Pacific for the period of 1945–2010, and then for the period of 2011–2020 to assess the radiological consequences of 137Cs released due to the FDNPP accident. The model simulations for activity concentrations of 137Cs in both pelagic and benthic organisms in the coastal area around the FDNPP agree well with measurements for the period of 2011–2015. The decrease constant in the fitted exponential function of simulated concentration for the deposit-feeding invertebrates (0.45 yr−1) is close to the observed decrease constant in sediments (0.44 yr−1). These results strongly indicate that the gradual decrease of activity in demersal fish (decrease constant is 0.46 yr−1) is caused by the transfer of activity from organic matter deposited in bottom sediment through the deposit-feeding invertebrates. The estimated model transfer coefficient from bulk sediment to demersal fish in the model for 2012–2020 (0.13) is larger than that to the deposit-feeding invertebrates (0.07). In addition, the transfer of 137Cs through food webs for the period of 1945–2020 has been modelled for the Baltic Sea contaminated due to global fallout and from the Chernobyl accident. The model simulation results obtained with generic parameters are also in good agreement with available measurements in the Baltic Sea. Unlike the open coastal system where the FDNPP is located, the dynamics of radionuclide transfer in the Baltic Sea reach a quasi-steady state due to the slow rate in water mass exchange in this semi-enclosed basin. Obtained results indicate a substantial contribution of the benthic food chain in the long-term transfer of 137Cs from contaminated bottom sediments to marine organisms and the potential application of a generic model in different regions of the world's oceans.

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Section: Introductionmentioning

confidence: 99%

Transfer of radiocaesium from contaminated bottom sediments to marine organisms through benthic food chains in post-Fukushima and post-Chernobyl periods

et al. 2016

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“…In their recent analysis of the impacts of radiation on the environment, the United Nation's Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) approved components of the ERICA approach following the 2011 accident at the Fukushima Dai-Ichi Nuclear Power Plant (4). Details on inter-comparison of dynamic models for radionuclide transfer in Fukushima accident scenario are available in Vives and Batlle et al (24). The impact of releases from a Belgian LLW repository to local biota using the ERICA approach is discussed in Batlle et al (25).…”

Section: Examples Of Practical Usementioning

confidence: 99%

Radiological risk assessment: an overview of the ERICA Integrated Approach and the ERICA Tool use

Prlić

Mostečak

Mihić

et al. 2017

Archives of Industrial Hygiene and Toxicology

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The ERICA project (Environmental Risk from Ionising Contaminants: Assessment and Management) was co-funded by the European Union as part of the 6 th Framework Programme (FP EURATOM). The project was carried out between 2004 and 2007 as the collective work of 15 organisations in seven European countries. Two significant outputs of the project are the ERICA Integrated Approach and the ERICA Tool. The ERICA Integrated Approach consists of three elements: assessment, risk characterisation and management. The ERICA Tool is a practical implementation of the assessment component of the ERICA Integrated Approach and has a three-tier structure. The aim of this review paper is to give a concise overview of ERICA project outputs and their structure, updates done since their first release in 2007, as well as to provide a context for their practical application in environmental radiation protection and radiological risk assessments for various engineering scenarios.

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“…Confirmation that the dose rates received by the biota were less than estimated in the earlier studies came from two sources: 1) systematic analysis of the extensive monitoring data made available from Japan (MEXT , ; TEPCO ), complemented with published data (Buesseler and Aoyama ; Buesseler et al ; Honda et al ), and 2) dynamic transfer modeling of radiation doses to marine biota including my own model, D‐DAT (Vives i Batlle et al ; Vives i Batlle and Vandenhove ; Vives i Batlle ; Vives i Batlle et al ). In the comprehensive United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR ) study that followed, both approaches were successfully combined (UNSCEAR ; Strand et al ; Vives i Batlle et al ).…”

Section: Initial Studies Of Impact To Nonhuman Biotamentioning

confidence: 99%

“…Dynamic transfer modeling continues to be applied using not only the D‐DAT model but also other approaches (Heling et al ; Brown et al ; Kryshev et al ; Psaltaki et al ; Maderich et al ; Keum et al ). These models have been compared internationally by running a Fukushima scenario in context of the IAEA project MODARIA (Modelling and Data for Radiological Impact Assessments) (Vives i Batlle et al ).…”

Section: Situation In Recent Yearsmentioning

confidence: 99%

“…This application can simulate successfully the acute phase of the accident, but not the sustained concentrations in fish observed over a longer period of several years (Johansen et al ). However, improvement is possible when adopting a biological turnover process governed by 2 different biological half‐lives, though these calculations remain preliminary because of the limited availability of dual biological half‐life parameters (Vives i Batlle ; Vives i Batlle et al ). Ongoing efforts (Beresford, Beaugelin‐Seiller, Burgos et al ; Beresford, Beaugelin‐Seiller, Wells et al ), combined with improved extrapolation approaches to cover gaps in data (Vives i Batlle et al , ; Beresford et al ) soon will allow a more accurate reproduction of the ecological half‐lives observed in the field, explained as the dynamic exchange of radionuclides between seawater, sediments, and the biota (particularly for benthic species within sediment‐associated food chains).…”

Section: Situation In Recent Yearsmentioning

confidence: 99%

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Impact of the Fukushima accident on marine biota, five years later

Batlle

2016

Integr Environ Assess Manag

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In a previous commentary written in 2011 in the aftermath of the Fukushima accident in Japan, I summarized what was then understood about the effects of accidental radioactive discharges to marine life and forecasted into the future how the marine environment would likely be affected. Since that time, several studies have been conducted on the impact of the accident on marine organisms, and radiation doses arising thereof. I developed a dynamic transfer model for studying the bioaccumulation of Fukushima radionuclides in marine biota and assessed the impact and likelihood of effects to marine life. In the present article, I highlight the lessons learned over the past 5 years. I address whether the environmental consequences in the marine environment are as significant as initially feared and, with respect to the current situation, what remains to be investigated as the radioactivity continues to spread in the marine environment. Integr Environ Assess Manag 2016;12:654-658. © 2016 SETAC.

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

Cited by 50 publications

References 41 publications

Transfer of radiocaesium from contaminated bottom sediments to marine organisms through benthic food chains in post-Fukushima and post-Chernobyl periods

Transfer of radiocaesium from contaminated bottom sediments to marine organisms through benthic food chains in post-Fukushima and post-Chernobyl periods

Radiological risk assessment: an overview of the ERICA Integrated Approach and the ERICA Tool use

Impact of the Fukushima accident on marine biota, five years later

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