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Radiocarbon and Tritium Levels Along the Romanian Lower Danube River

Published online by Cambridge University Press:  18 July 2016

Carmen Varlam ,
Ioan Stefanescu ,
Stela Cuna ,
Irina Vagner ,
Ionut Faurescu  and
Denisa Faurescu
Carmen Varlam*
Affiliation:
Institute for Cryogenics and Isotopic Technologies, Ramnicu Valcea, Romania
Ioan Stefanescu
Affiliation:
Institute for Cryogenics and Isotopic Technologies, Ramnicu Valcea, Romania
Stela Cuna
Affiliation:
Institute for Isotopic and Molecular Technologies, Cluj Napoca, Romania
Irina Vagner
Affiliation:
Institute for Cryogenics and Isotopic Technologies, Ramnicu Valcea, Romania
Ionut Faurescu
Affiliation:
Institute for Cryogenics and Isotopic Technologies, Ramnicu Valcea, Romania
Denisa Faurescu
Affiliation:
Institute for Cryogenics and Isotopic Technologies, Ramnicu Valcea, Romania
*
Corresponding author. Email: cvarlam@icsi.ro
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Abstract

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The Lower Danube Basin covers the Romanian-Bulgarian sub-basin downstream from Cazane Gorge and the sub-basins of the Siret and Prut rivers. To extensively survey the Romanian nuclear power plant impact on the Danube water, tritium and radiocarbon baseline values are required. Therefore, the reported study tried to establish these values based on a 2-yr sampling campaign covering 975 km of the Danube from Cazane Gorge to Tulcea. The tributaries Cerna, Jiu, Olt, and Arges were also included in this study. During the sampling campaigns, tritium concentration of different sampling locations showed values between 7 ± 2.1 and 33.5 ± 2.3 TU. Measured 14C activity for the same locations ranged between 88.45 ± 1.46 and 112.36 ± 1.56 pMC. Lower values were recorded for tributaries: between 8.3 ± 2.1 and 12.2 ± 2.2 TU for tritium and between 67.3 ± 1.29 and 86.04 ± 1.42 pMC for 14C. Despite the nuclear activity in the observed areas, tritium and 14C activities presented slightly higher values for specific locations without any influence on Danube River water.

Type
Methods, Applications, and Developments
Information
Radiocarbon , Volume 52 , Issue 2: 20th Int. Radiocarbon Conference Proceedings , 2010 , pp. 783 - 793
Copyright
Copyright © 2010 by the Arizona Board of Regents on behalf of the University of Arizona 

References

APHA-AWWA-WEF [American Public Health Association (APHA); American Water Works Association (AWWA); Water Environment Federation (WEF)]. 1995. Standard Methods for the Examination of Water and Wastewater. 19th edition. Washington: APHA-AWWA-WEF.Google Scholar
Clark, ID, Fritz, P. 1997. Environmental Isotopes in Hydrogeology. Boca Raton: CRC Press. p 37–42.Google Scholar
Davidescu, F, Petres, R, Tenu, A. 2002. Tritium and C-14 trends in the environment for Cernavoda Power Plant. Mediul Inconjurator 2(1):28–34. In Romanian.Google Scholar
Druffel, ERM, Williams, PM, Bauer, JE, Ertel, JR. 1992. Cycling of dissolved and particulate organic matter in the open ocean. Journal of Geophysical Research 97(C10):15,639–59.Google Scholar
IAEA (International Atomic Energy Agency). 1989. Measurement of Radionuclides in Food and the Environment. Technical Reports Series nr 295. Vienna: IAEA. p 30–1.Google Scholar
IAEA (International Atomic Energy Agency). 2004. Management of Waste Containing Tritium and Carbon-14. Technical Reports Series nr 421. Vienna: IAEA. 18 p.Google Scholar
ICPDR (International Commission for the Protection of Danube River). 2005. The Danube River Basin District Part A—Basin-wide Overview.Google Scholar
ISO (International Organization for Standards). 1989. Water quality. Determination of tritium activity concentration in water sample. Liquid Scintillation Method. ISO/DIS 9698. Geneva: ISO. 24 p.Google Scholar
Kralik, M, Hummer, F, Stadler, E, Scheidleder, A, Tesch, R, Papesch, W. 2005. Tritium Osterreich Jahresbericht 1997 bis 2002. Available online at http://www.umweltbundesamt.at.Google Scholar
Leaney, F, Herczeg, A, Dighton, J. 1994. New developments for the direct CO2 absorption method for radiocarbon analysis. Quaternary Science Reviews 13(2):171–8.Google Scholar
Magnusson, Ȧ, Stenström, K, Skog, G, Adliene, D, Adlys, G, Hellborg, R, Olariu, A, Zakaria, M, Rääf, C, Mattsson, S. 2004. Levels of 14C in the terrestrial environment in the vicinity of two European nuclear power plants. Radiocarbon 46(2):863–8.CrossRefGoogle Scholar
Moreton, SG, Rosqvist, GC, Davies, SJ, Bentley, MJ. 2004. Radiocarbon reservoirs ages from freshwater lakes, south Georgia, sub-Antarctic: modern analogues from particulate organic matter and surface sediments. Radiocarbon 46(2):621–7.CrossRefGoogle Scholar
Rank, D, Adler, A, Araguás-Araguás, L, Froehlich, K, Rozanski, K, Stichler, W. 1998. Hydrological parameters and climatic signals derived from long term tritium and stable isotope time series of the River Danube. In: Proceedings, Isotope Techniques in the Study of Environmental Change. IAEA-SM-349/16. Vienna: IAEA. p 191–205.Google Scholar
Rank, D, Özsoy, E, Salihoǧlu, İ. 1999. Oxygen-18, deuterium and tritium in the Black Sea and the Sea of Marmara. Journal of Environmental Radioactivity 43(2):231–45.Google Scholar
Rank, D, Papesch, W, Tesch, R. 2005. Runoff characteristics of the upper Danube basin: conclusions from long-term environmental isotope records. Geophysical Research Abstracts 7:03315.Google Scholar
Tenu, A, Davidescu, F, Cuculeanu, V. 2002. Tropospheric CO2 in Romania: concentration and isotopic composition measurements. IAEA–TECDOC–1269. Vienna: IAEA. p 41–59.Google Scholar
Rozanski, K, Froehlich, K, Mook, WG. 2001. Environmental isotopes in the hydrological cycles. In: Mook, WG, editor. IHP-V, Technical Documents in Hydrology. Number 39. Volume 3. Paris: UNESCO. p 39–45.Google Scholar
Varlam, C, Stefanescu, I, Varlam, M, Faurescu, I, Popescu, I. 2005. Optimization of 14C concentration measurement in aqueous samples using direct absorption method and liquid scintillation counting. In: Chałupnik, S, Schönhofer, F, Noakes, F, editors. LSC 2005, Advances in Liquid Scintillation Spectrometry. Tucson: Radiocarbon. p 423–8.Google Scholar
Varlam, C, Stefanescu, I, Duliu, OG, Faurescu, I, Popescu, I, Dobrinescu, D. 2009. Applying direct liquid scintillation counting to low level tritium measurement. Journal of Applied Radiation and Isotopes 67(5):812–6.Google Scholar