Aggregated transfer factors of fresh Cs and Sr pollution to various vegetables from six common European soils - mesocosm experiment.

Journal of environmental management 2023 Nov 01

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Aggregated transfer factors (Tag) were identified for three common vegetables grown in six common European soils freshly contaminated by 134Cs and 85Sr. The experiment was carried out as a mesocosm experiment in pots with an average soil weight of 15.8 kg per pot. The vegetables were grown one after the other during one vegetation season, in the order lettuce, onion, and radish (the order usually applied in private gardens and small farms). Despite the fact that lettuce was grown in the most contaminated soil, it had the lowest Tag (in m2/kg) of both radionuclides (3.6E-4 for Cs, 2.0E-2 for Sr), while onion had 6.4E-3 for Cs and 3.2E-2 for Sr and radish had 1.9E-3 for Cs and 8.1E-2 for Sr. Potassium supply did not show any statistically significant effect on Cs Tag; there was a significant impact of K on the decrease in Sr Tag. The experiments indicated that Tag is more affected by plant species than by soil type; therefore, selection of plants with a lower capacity to uptake radionuclides may be an important measure to reduce food contamination and thus minimize the committed effective dose. Copyright © 2023 Elsevier Ltd. All rights reserved.

Citation

Dana Komínková, Jaroslav Vacula, Věra Záhorová, Petr Rulík, Jan Škrkal, Emilie Pecharová, Zdeněk Borecký, Klára Šestáková, Dita Stádníková, Petr Finkous, Miroslav Finkous, Věra Hofmanová Kautská, Věra Doskočilová, Helena Pilátová. Aggregated transfer factors of fresh Cs and Sr pollution to various vegetables from six common European soils - mesocosm experiment. Journal of environmental management. 2023 Nov 01;345:118900