Investigation and Assessment of 137Cs and 40K Accumulation in Vegetable Segments
Renata Mikalauskienė, Donatas Butkus
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Department of Environmental Protection, Vilnius Gediminas Technical University
Saulėtekio 11, LT-10223 Vilnius, Lithuania
Pol. J. Environ. Stud. 2015;24(2):585–595
Our article deals with the accumulation of artificial (137Cs) and natural (40K) radionuclides in the segments of carrots (Daucus carota L.), potatoes (Solanum tuberosum L.), beet (Beta vulgaris L.), and head cabbage (Brassica oleracea L.). The main physical properties of soils and their possible impact on the specific activity of 137Cs and 40K in vegetables have been determined. The specific activities of 137Cs and 40K in the soil and vegetable segments were measured; transfer (TF) and 137Cs discrimination (DF) factors were identified.
It was determined that artificial radionuclide 137Cs transfer factors from the soil to vegetable segments were subject to fluctuate from 0.02 to 0.39. The accumulation of natural radionuclide 40K in vegetable segments is almost three times more intensive than that of artificial 137Cs – the values of the 40K transfer factor varied from 0.06 to 1.32. The 137Cs discrimination factor (DF) in vegetable segments ranged from 0.01 to 1.07.