Abstract
One of the important aspects for remediation of contaminated soils is a reduction of biological mobility of radionuclides in the water-soil-plant system. Anthropogenic radionuclides 137Cs and 90Sr become more concentrated as they move up the food chain often becoming human health hazards. The aim of the research is to elucidate the influence of polymers’ impact on biological migration of 90Sr and 137Cs in the system irrigation water-soil-plant in zones of radioecological tension. The tests were carried out in soil without and with application of polymer Ca++ in root-inhabited media (RIM) in the most radioecological tension zone of Armenia. Sweet basil (Ocimum basilicum L.) was chosen for the investigations. Both quantitative and qualitative productivity of basil depending on (1) the presence or absence of Ca++ polymer, (2) quantity of Ca++ polymer, (3) content of artificial radionuclides in different soil layers and (4) type of plant tissue were determined. The presence of Ca++ polymer in soil RIM promoted the decrease of 90Sr content in basil leaves 1.7–2.0 times compared to the control sample. The use of 1 g/plant Ca++ polymer decreased the content of artificial radionuclides in the soil layer at the end of vegetative period: 1.5 times for 90Sr and 1.3 times for 137Cs. Ca++ polymer was effective for decreasing 90Sr concentration in sweet basil.
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The research has been funded under A-1671 ISTC.
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Tadevosyan, A., Schellenberg, M., Mayrapetyan, S., Ghalachyan, L. (2013). Opportunity of Remediation of Radionuclide-Contaminated Soils and Growing Ecologically Pure Plant Material via Water-Retaining Polymer. In: Pierce, G., Mizin, V., Omelchenko, A. (eds) Advanced Bioactive Compounds Countering the Effects of Radiological, Chemical and Biological Agents. NATO Science for Peace and Security Series A: Chemistry and Biology. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-6513-9_23
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DOI: https://doi.org/10.1007/978-94-007-6513-9_23
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