title: Distribution of natural and artificial radionuclides in chernozem soil/crop system from stationary experiments.
abstract: The present paper focuses on the determination of radiological characteristics of cultivated chernozem soil and crops from long-term field experiments, taking into account the importance of distribution and transfer of radionuclides in the soil-plant system, especially in agricultural cropland. The investigation was performed on the experimental fields where maize, winter wheat, and rapeseed were cultivated. Analysis of radioactivity included determination of the gross alpha and beta activity as a screening method, as well as the activities of the following radionuclides: natural ((210)Pb, (235)U, (238)U, (226)Ra, (232)Th, (40)K, (7)Be) and artificial ((90)Sr and (137)Cs). The activities of natural and artificial ((137)Cs) radionuclides were determined by gamma spectrometry, while the artificial radionuclide (90)Sr was determined by a radiochemical analytical method. Based on the obtained results for the specific activity of (40)K, (137)Cs, and (90)Sr, accumulation factors for these radionuclides were calculated in order to estimate transfer of radionuclides from soil to crops. The results of performed analyses showed that there is no increase of radioactivity that could endanger the food production through the grown crops.
authors.affiliation: Radiation and Environmental Protection Department, Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia. natasas@vinca.rs.
authors.forename: Nataša B
authors.initials: NB
authors.lastname: Sarap
authors.affiliation: Radiation and Environmental Protection Department, Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia.
authors.forename: Milica M
authors.initials: MM
authors.lastname: Rajačić
authors.affiliation: Institute of Field and Vegetable Crops, Novi Sad, Serbia.
authors.forename: Ivica G
authors.initials: IG
authors.lastname: Đalović
authors.affiliation: Department of Field and Vegetable Crops, Faculty of Agriculture, University of Novi Sad, Novi Sad, Serbia.
authors.forename: Srđan I
authors.initials: SI
authors.lastname: Šeremešić
authors.affiliation: Department of Pedology and Geology, Faculty of Agriculture, University of Belgrade, Belgrade, Serbia.
authors.forename: Aleksandar R
authors.initials: AR
authors.lastname: Đorđević
authors.affiliation: Radiation and Environmental Protection Department, Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia.
authors.forename: Marija M
authors.initials: MM
authors.lastname: Janković
authors.affiliation: Department of Radiochemistry and Nuclear Chemistry, Faculty of Physical Chemistry, University of Belgrade, Belgrade, Serbia.
authors.forename: Marko Z
authors.initials: MZ
authors.lastname: Daković
mesh_terms: D000383:Agriculture; D001417:Background Radiation; D002588:Cesium Radioisotopes / Q000032:analysis; D018556:Crops, Agricultural; D011834:Radiation Monitoring; D011851:Radioactivity; D011868:Radioisotopes / Q000032:analysis; D012987:Soil / Q000737:chemistry; D012990:Soil Pollutants, Radioactive / Q000032:analysis*; D013051:Spectrometry, Gamma; D014908:Triticum
chemical_list: D002588:Cesium Radioisotopes; D011868:Radioisotopes; D012987:Soil; D012990:Soil Pollutants, Radioactive
keywords: Chernozem soil; Long-term experiment; Plant; Radionuclides