Simulation of radioactive cesium transfer in the southern Fukushima coastal biota using a dynamic food chain transfer model

Tateda, Yutaka; Tsumune, Daisuke; Tsubono, Takaki

doi:10.1016/j.jenvrad.2013.03.007

Cited by 91 publications

(65 citation statements)

References 30 publications

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“…Figure 13.2 shows the variations in seawater 137 Cs concentration at the three sites. High 137 Cs concentrations were simultaneously detected at all three stations (Tateda et al 2013). The difference reflected the variation in analytical period.…”

Section: Cs Concentrations In Coastal Seawater and Marine Fish Ofmentioning

confidence: 92%

“…Many types of biokinetic model have been used to simulate the concentration of radioactive nuclides in fish (Brown et al 2006;Kanish and Aust 2013;Tateda et al 2013). We constructed a simple model of two compartments as shown by Brown et al (2006).…”

Section: Simulation Of 137 Cs Concentrations In Fat Greenlings Using mentioning

confidence: 99%

“…In April 2011, extremely high levels of 131 I and radiocesium ( 134 Cs + 137 Cs; >1.0 × 10 4 Bq/kg-wet) were reported in sand lance larvae. Such high contamination levels were confined to larvae of pelagic fish in the area south of the FNPP and were thought to result from the spread of contaminated water after the accident (Tateda et al 2013). After that, 131 I contamination levels decreased rapidly, consistent with its short half-life (about 8.02 days), and returned to the levels below the limit of detection (hereinafter referred to as ND) after August 2011 (Wada et al 2013).…”

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confidence: 99%

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Analysis of the Contamination Process of the Extremely Contaminated Fat Greenling by Fukushima-Derived Radioactive Material

Watanabe

Fujimoto

Shigenobu

et al. 2015

Impacts of the Fukushima Nuclear Accident on Fish and Fishing Grounds

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We analyzed the contamination process by which the fat greenling, which was caught in the area off the mouth of the Ota River of Fukushima prefecture on August 1, 2012, concentrated radiocesium ( 134 Cs + 137 Cs) to the level of 25,800 Bq/kg-wet. The radioactivity environment of the area was insufficient to maintain or increase the radiocesium concentration in the fish at the time. Distribution of the radioactive materials in the otolith of the fat greenling estimated by beta-ray emissions suggested that the fat greenling was in a highly contaminated environment during the period immediately following the Fukushima Dai-ichi Nuclear Power Plant (FNPP) accident. We used a biokinetic simulation of the 137 Cs concentration to demonstrate that the fat greenling had to have been exposed to radioactivity from the FNPP to achieve such a high radiocesium concentration. Thus, the extremely contaminated fat greenling originated in the heavily contaminated environment of the FNPP port or the adjoining area in the period just after the accident.

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Section: Cs Concentrations In Coastal Seawater and Marine Fish Ofmentioning

confidence: 92%

Section: Simulation Of 137 Cs Concentrations In Fat Greenlings Using mentioning

confidence: 99%

mentioning

confidence: 99%

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Analysis of the Contamination Process of the Extremely Contaminated Fat Greenling by Fukushima-Derived Radioactive Material

Watanabe

Fujimoto

Shigenobu

et al. 2015

Impacts of the Fukushima Nuclear Accident on Fish and Fishing Grounds

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“…In this context, it is important to look at the results of activities of radioecologists outside the present network of collaborators (Baumann et al, 2015;Fukuda et al, 2017;Tateda et al, 2015;Tateda et al, 2017;Tateda et al, 2013;Tateda et al, 2016;Wang et al, 2016) in order to arrive at a true synthesis of marine radioecology research.…”

Section: International Dimension Of the Research Performedmentioning

confidence: 99%

Marine radioecology after the Fukushima Dai-ichi nuclear accident: Are we better positioned to understand the impact of radionuclides in marine ecosystems?

Batlle

Aoyama

Bradshaw

et al. 2018

Science of The Total Environment

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This paper focuses on how a community of researchers under the COMET (CO-ordination and iMplementation of a pan European projecT for radioecology) project has improved the capacity of marine radioecology to understand at the process level the behaviour of radionuclides in the marine environment, uptake by organisms and the resulting doses after the Fukushima Dai-ichi nuclear accident occurred in 2011. We present new radioecological understanding of the processes involved, such as the interaction of waterborne radionuclides with suspended particles and sediments or the biological uptake and turnover of radionuclides, which have been better quantified and mathematically described.We demonstrate that biokinetic models can better represent radionuclide transfer to biota in nonequilibrium situations, bringing more realism to predictions, especially when combining physical, chemical and biological interactions that occur in such an open and dynamic environment as the ocean. As a result, we are readier now than we were before the FDNPP accident in terms of having models that can be applied to dynamic situations.The paper concludes with our vision for marine radioecology as a fundamental research discipline and we present a strategy for our discipline at the European and international levels. The lessons learned 2 are presented along with their possible applicability to assess/reduce the environmental consequences of future accidents to the marine environment and guidance for future research, as well as to assure sustainability of marine radioecology in Europe and globally. This guidance necessarily reflects on why and where further research funding is needed, signalling the way for future investigations.3

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“…These concentrations decreased over time in most of the epipelagic fi sh and neustonic organisms (Buesseler 2012 ). However, some demersal fi sh off the coast of Fukushima and some freshwater fi sh in central and northern Honshu Island continue to exhibit higher radiocesium concentrations (Tateda et al 2013 ). Freshwater masu salmon ( Oncorhynchus masou ) from the Niida River in Fukushima Prefecture contained the highest measured radiocesium concentrations in March 2012 (18,700 Bq/kg-wet weight; Fisheries Agency 2012 ).…”

Section: Introductionmentioning

confidence: 99%

Radiocesium Concentrations in the Muscle and Eggs of Salmonids from Lake Chuzenji, Japan, After the Fukushima Fallout

Yamamoto

Yokoduka

Fujimoto

et al. 2015

Impacts of the Fukushima Nuclear Accident on Fish and Fishing Grounds

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Approximately 18 months (September-December 2012) after the Fukushima Dai-ichi Nuclear Power Plant accident, elevated radiocesium concentrations were detected in muscle and egg samples from masu salmon ( Oncorhynchus masou ), kokanee ( Oncorhynchus nerka ), brown trout ( Salmo trutta ), and lake trout ( Salvelinus namaycush ) from the Lake Chuzenji system, central Honshu Island, Japan (160 km from the station). Mean muscle concentrations were 142.9-249.2 Bq/ kg-wet, and mean egg concentrations were 38.7-79.0 Bq/kg-wet. No relationship between fork length and muscle radiocesium concentration was observed in any of the species, but signifi cant relationships were found between individual muscle and egg radiocesium concentrations from masu salmon, brown trout, and lake trout.

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Simulation of radioactive cesium transfer in the southern Fukushima coastal biota using a dynamic food chain transfer model

Cited by 91 publications

References 30 publications

Analysis of the Contamination Process of the Extremely Contaminated Fat Greenling by Fukushima-Derived Radioactive Material

Analysis of the Contamination Process of the Extremely Contaminated Fat Greenling by Fukushima-Derived Radioactive Material

Marine radioecology after the Fukushima Dai-ichi nuclear accident: Are we better positioned to understand the impact of radionuclides in marine ecosystems?

Radiocesium Concentrations in the Muscle and Eggs of Salmonids from Lake Chuzenji, Japan, After the Fukushima Fallout

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