title: Atmospheric flux, transport and mass balance of (210)Pb and (137)Cs radiotracers in different regions of Romania.
abstract: This study focuses on the determination of (210)Pb and (137)Cs fluxes from different areas in Transylvania, Romania and on the determination of transport and mass balance within the lacustrine system of Red Lake. In order to achieve this, samples were taken from six different locations (Bihor County area, Ighiel area, Red Lake area, Mluha Peatbog, Mohos Peatbog and Zanoaga Rosie Peat bog in the Semenic Mountains) throughout Romania, these being compared to the values of the Danube Delta area. The activity concentrations of the soil samples were measured by gamma spectrometry (HPGe detector) for both (210)Pbtotal, (210)Pbsup ((226)Ra) and (137)Cs, while peat samples were measured by both alpha ((210)Po) spectrometry (PIPS detectors) as well. The mean value for the (210)Pb flux was measured in the Danube Delta region (42±8Bqm(-2) yr(-1)), while the highest was measured in the Semenic Peatbog (227±54Bqm(-2) yr(-1)); the average being 132±8Bqm(-2) yr(-1). In case of (137)Cs the mean was 298±3Bqm(-2) yr(-1), maximum being 1683±15Bqm(-2) yr(-1) in case of Ighiel area and minimum being 32±1Bqm(-2) yr(-1) in the Danube Delta region. In case of the Red Lake, from the total inventory of 410±23Bqm(-2) yr(-1) in the sediments, the loss by outflows is 100±12Bqm(-2) yr(-1), the catchment to lake transfer factor being 0.84%.
authors.affiliation: Babes-Bolyai University, Faculty of Environmental Science and Engineering, Fantanele Str. 30, RO-400294 Cluj-Napoca, Romania; Interdisciplinary Research Institute on Bio-Nano-Science, Babeş-Bolyai University, Treboniu Laurean 42, 400271 Cluj-Napoca, Romania. Electronic address: robert.begy@ubbcluj.ro.
authors.forename: R Cs
authors.initials: RC
authors.lastname: Begy
authors.affiliation: Institute of Radiochemistry and Radioecology, University of Pannonia, H-8200 Veszprém, Hungary.
authors.forename: T
authors.initials: T
authors.lastname: Kovacs
authors.affiliation: Romanian Academy, Institute of Speleology, Clinicilor Str. 5-7, Cluj-Napoca 400006, Romania.
authors.forename: D
authors.initials: D
authors.lastname: Veres
authors.affiliation: Babes-Bolyai University, Faculty of Environmental Science and Engineering, Fantanele Str. 30, RO-400294 Cluj-Napoca, Romania.
authors.forename: H
authors.initials: H
authors.lastname: Simon
keywords: (210)Pb and (137)Cs flux; (210)Pb and (137)Cs inventory; (210)Pb transport factor; Romania; Transylvania