Radioactivity in sediments from the Grliska impoundment

• Published in: Water research (Oxford) Vol. 30; no. 6; pp. 1539 - 1542
• Main Authors: Drndarski, Nina D., Lavi, Natan
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.06.1996; Elsevier Science
• Subjects: activity ratio; Applied sciences; artificial lake; artificial radionuclide; average deposition; Exact sciences and technology; Freshwater; Global environmental pollution; naturally occurring radionuclide; partitioning coefficient; Pollution; Ukraine, Chernobyl; average deposition; artificial radionuclide; naturally occurring radionuclide; artificial lake; activity ratio; partitioning coefficient; Radioactive pollution; Artificial lake; Content; Partition coefficient; Water pollution; Radioisotope; Lake sediments; Concentration distribution
• ISSN: 0043-1354; 1879-2448
• DOI: 10.1016/0043-1354(96)00010-3

The concentrations of the fission radionuclide 137Cs, an activation radionuclide 134Cs and the naturally occurring radionuclides 40K, 226Ra and 232Th were measured by gamma spectrometry in the sediment and water samples collected from the Grliska artificial lake and its tributaries. The deposition of radiocesium per square meter of sediments ranged from 2799 to 6158 Bq/m 2. The total gamma activity of sediments appeared to be due to all determined radionuclides with a major contribution of the naturally occurring radiopotassium. Activity ratio 134Cs 137 Cs recalculated to April 1986 showed that radiocesium in the Grliska impoundment environment originated from the Chernobyl fallout. Radionuclide partitioning coefficients were calculated in order to explain their transport/retardation in the Grliska impoundment ecosystem.