Iodine uptake in brown seaweed exposed to radioactive liquid discharges from the reprocessing plant of ORANO La Hague

Fiévet, Bruno; Voiseux, Claire; Leblanc, Catherine; Maro, D.; Hébert, D.; Solier, L.; Godinot, Claire

doi:10.1016/j.jenvrad.2022.107045

Journal of Environmental Radioactivity

2023

DOI: 10.1016/j.jenvrad.2022.107045

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Iodine uptake in brown seaweed exposed to radioactive liquid discharges from the reprocessing plant of ORANO La Hague

Bruno Fiévet¹,

Claire Voiseux²,

Catherine Leblanc³

et al.

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2024

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Cited by 4 publications

References 34 publications

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Live storage of kelp under stressful conditions led to higher iodine reductions during subsequent blanching

Blikra,

Skipnes

2024

J Appl Phycol

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Kelp growers and the food industry, as well as food researchers, are currently finding methods for controlling the iodine content of kelp intended for food as this is one of the major obstacles to entering a profitable market. Kelps are rich sources of dietary iodine since iodine is up-concentrated in algal tissue and utilized as an inorganic antioxidant during exposure to stress. As kelp contains much more iodine than any other food source, it is warranted to reduce the amount of iodine in the biomass prior to consumption, since both iodine deficiency and excess can cause health problems. Iodine is typically removed post-harvest using traditional methods such as blanching. In the present work, we attempted to utilize inherent stressors, i.e., intermediate storage (3 days) with high light exposure and low turnover of water, to reduce the iodine content prior to processing. Furthermore, we assessed the effect on subsequent blanching, comparing samples stored in tanks and not stored samples. The iodine content was slightly reduced when comparing storage to no storage, but in most cases not significantly so. However, after subsequent blanching, there was a pronounced added reduction for stored samples (87 % reduction) compared to not stored samples (80 % reduction). Although the differences are smaller than we expected, our research shows that using post-harvest intermediate storage of kelp may alter the iodine content post-processing. Fine-tuning the stressors and conditions could lead to new possibilities for iodine reduction.

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Live storage of kelp under stressful conditions led to higher iodine reductions during subsequent blanching

Blikra,

Skipnes

2024

J Appl Phycol

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Sorption behavior of fission products (Tc, I) in marine and freshwater bottom sediments

Rozhkova,

Logutenkova,

Dodonova

et al. 2024

J Radioanal Nucl Chem

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Challenges in radioecology following the new trends in UAE’s agriculture and environmental changes: a review

Mihalik,

Chelaifa,

Alzaabi

et al. 2024

Environ Sci Pollut Res

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The development of the nuclear industry in the countries of the Arabian Gulf demands an investigation of its potential impact on the environment and human activities. It should involve routine monitoring of radionuclide from existing nuclear facilities as well as modelling of accidental release of radioactivity. Agriculture is usually considered the human activity which is the most endangered with radioactive pollution. Although the traditional concept of low-developed agriculture in the United Arab Emirates has been already described from a radioecological point of view, herein, the recent trends of agriculture are recorded. Due to climatic changes and population increase, the use of saline lands will be more pressing. Apart from it, the risk assessment for nuclear events, which was formed mainly for temperate zones, neglected another aspect of arid zones which is underground water reservoirs refilled with episodic heavy rains. The sandy or saline soils are not an effective barrier for the migration of radionuclide deposited in topsoil. A hypersaline environment could prevent the adsorption of radionuclide on soil particles and allow their high bioavailability for halophyte plants. The new principal challenges in radioecological research in arid zones are impacts on (i) saline agriculture, (ii) underground water reservoirs, and (iii) proposal for countermeasures in order to minimise the impact of radioactive contamination.

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Iodine uptake in brown seaweed exposed to radioactive liquid discharges from the reprocessing plant of ORANO La Hague

Cited by 4 publications

References 34 publications

Live storage of kelp under stressful conditions led to higher iodine reductions during subsequent blanching

Live storage of kelp under stressful conditions led to higher iodine reductions during subsequent blanching

Sorption behavior of fission products (Tc, I) in marine and freshwater bottom sediments

Challenges in radioecology following the new trends in UAE’s agriculture and environmental changes: a review

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