Radionuclide metrology methods and analysis of the Joint Danube Survey 4 sediment samples

Appl Radiat Isot. 2023 Jun:196:110780. doi: 10.1016/j.apradiso.2023.110780. Epub 2023 Mar 17.

Abstract

This low-level radionuclide metrology research work was carried out within the Joint Danube Survey 4 (JDS4), coordinated in 2018-2020 by the International Commission for the Protection of the Danube River (ICPDR). The gamma-emitting radionuclides of the sediment samples were analysed by low-level gamma-ray spectrometry. The activity concentration of 90Sr was determined by liquid scintillation counting (LSC) after isolating the radio-strontium using a new radiochemical separation method. The results of the radiometric analysis of 90Sr, 137Cs and naturally occurring radionuclides 40K, 210Pb, 226Ra, 228Ra in recent riverbed sediment are presented and discussed focused on public health.

Keywords: (137)Cs; (210)Pb; (226)Ra; (228)Ra; (40)K; (90)Sr; Danube River; Low-level radionuclide metrology; Radioecology.