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2. Carbon and Pu isotopes in Baltic Sea sediments

Author

Lujanienė, G., Povinec, P.P., Li, H.-C., Barisevičiūtė, R., Remeikaitė-Nikienė, N., Malejevas, V., Garnaga-Budrė, G., Terrassi, F., Pánik, J., Kaizer, J., Šemčuk, S., Jokšas, K., Tracevičienė, D., and Stankevičius, A.

Published
2017
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17. Work package 4: Redox reactions of radionuclides

Author

Perdicakis, M., Allard, S., Holgersson, S., Bryan, N., Kay, R. R., Li, N., Stockdale, A., Baltrunas, D., Lujaniene, G., Schäfer, Th., Marquardt, Ch., Evans, N., Hallam, R., Warwick, P., Grivé, M., Gaona, X., Tits, J., Wieland, E., and Krawczyk-Bärsch, E.

Subjects
Technology, ddc:600
Published
2011

20. ChemInform Abstract: Redox Reactions of Radionuclides

Author

Perdicakis, M., primary, Allard, S., additional, Holgersson, S., additional, Brian, N., additional, Kay, R. R., additional, Li, N., additional, Stockdale, A., additional, Baltrunas, D., additional, Lujaniene, G., additional, Schafer, Th., additional, and et al., et al., additional

Published
2013
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21. Tracking of Airborne Radionuclides from the Damaged Fukushima Dai-Ichi Nuclear Reactors by European Networks

Author

Masson, O., Baeza, A., Bieringer, J., Brudecki, K., Bucci, S., Cappai, M., Carvalho, F.P., Connan, O., Cosma, C., Dalheimer, A., Didier, D., Depuydt, G., De Geer, L.E., De Vismes, A., Gini, L., Groppi, F., Gudnason, K., Gurriaran, R., Hainz, D., Halldórsson, Ó., Hammond, D., Hanley, O., Holeý, K., Homoki, Zs., Ioannidou, A., Isajenko, K., Jankovic, M., Katzlberger, C., Kettunen, M., Kierepko, R., Kontro, R., Kwakman, P.J.M., Lecomte, M., Leon Vintro, L., Leppänen, A.-P., Lind, B., Lujaniene, G., Mc Ginnity, P., Mahon, C. Mc, Malá, H., Manenti, S., Manolopoulou, M., Mattila, A., Mauring, A., Mietelski, J.W., Møller, B., Nielsen, Sven Poul, Nikolic, J., Overwater, R.M.W., Pálsson, S. E., Papastefanou, C., Penev, I., Pham, M.K., Povinec, P.P., Ramebäck, H., Reis, M.C., Ringer, W., Rodriguez, A., Rulík, P., Saey, P.R.J., Samsonov, V., Schlosser, C., Sgorbati, G., Silobritiene, B. V., Söderström, C., Sogni, R., Solier, L., Sonck, M., Steinhauser, G., Steinkopff, T., Steinmann, P., Stoulos, S., Sýkora, I., Todorovic, D., Tooloutalaie, N., Tositti, L., Tschiersch, J., Ugron, A., Vagena, E., Vargas, A., Wershofen, H., Zhukova, O., Masson, O., Baeza, A., Bieringer, J., Brudecki, K., Bucci, S., Cappai, M., Carvalho, F.P., Connan, O., Cosma, C., Dalheimer, A., Didier, D., Depuydt, G., De Geer, L.E., De Vismes, A., Gini, L., Groppi, F., Gudnason, K., Gurriaran, R., Hainz, D., Halldórsson, Ó., Hammond, D., Hanley, O., Holeý, K., Homoki, Zs., Ioannidou, A., Isajenko, K., Jankovic, M., Katzlberger, C., Kettunen, M., Kierepko, R., Kontro, R., Kwakman, P.J.M., Lecomte, M., Leon Vintro, L., Leppänen, A.-P., Lind, B., Lujaniene, G., Mc Ginnity, P., Mahon, C. Mc, Malá, H., Manenti, S., Manolopoulou, M., Mattila, A., Mauring, A., Mietelski, J.W., Møller, B., Nielsen, Sven Poul, Nikolic, J., Overwater, R.M.W., Pálsson, S. E., Papastefanou, C., Penev, I., Pham, M.K., Povinec, P.P., Ramebäck, H., Reis, M.C., Ringer, W., Rodriguez, A., Rulík, P., Saey, P.R.J., Samsonov, V., Schlosser, C., Sgorbati, G., Silobritiene, B. V., Söderström, C., Sogni, R., Solier, L., Sonck, M., Steinhauser, G., Steinkopff, T., Steinmann, P., Stoulos, S., Sýkora, I., Todorovic, D., Tooloutalaie, N., Tositti, L., Tschiersch, J., Ugron, A., Vagena, E., Vargas, A., Wershofen, H., and Zhukova, O.

Abstract

Radioactive emissions into the atmosphere from the damaged reactors of the Fukushima Dai-ichi nuclear power plant (NPP) started on March 12th, 2011. Among the various radionuclides released, iodine-131 (131I) and cesium isotopes (137Cs and 134Cs) were transported across the Pacific toward the North American continent and reached Europe despite dispersion and washout along the route of the contaminated air masses. In Europe, the first signs of the releases were detected 7 days later while the first peak of activity level was observed between March 28th and March 30th. Time variations over a 20-day period and spatial variations across more than 150 sampling locations in Europe made it possible to characterize the contaminated air masses. After the Chernobyl accident, only a few measurements of the gaseous 131I fraction were conducted compared to the number of measurements for the particulate fraction. Several studies had already pointed out the importance of the gaseous 131I and the large underestimation of the total 131I airborne activity level, and subsequent calculations of inhalation dose, if neglected. The measurements made across Europe following the releases from the Fukushima NPP reactors have provided a significant amount of new data on the ratio of the gaseous 131I fraction to total 131I, both on a spatial scale and its temporal variation. It can be pointed out that during the Fukushima event, the 134Cs to 137Cs ratio proved to be different from that observed after the Chernobyl accident. The data set provided in this paper is the most comprehensive survey of the main relevant airborne radionuclides from the Fukushima reactors, measured across Europe. A rough estimate of the total 131I inventory that has passed over Europe during this period was

Published
2011

22. Tracking of Airborne Radionuclides from the Damaged Fukushima Dai-Ichi Nuclear Reactors by European Networks

Author

Masson, Olivier, Baeza, A., Bieringer, Jacqueline, Brudecki, K., Bucci, S., Cappai, M., Carvalho, F. P., Connan, O., Cosma, C., Dalheimer, Axel, Didier, D., Depuydt, G., De Geer, L. E., De Vismes, Anne, Gini, L., Groppi, F., Gudnason, K., Gurriaran, R., Hainz, D., Halldorsson, O., Hammond, D., Hanley, O., Holey, K., Homoki, Zsolt, Ioannidou, A., Isajenko, Krzysztof A., Janković, Marija M., Katzlberger, Christian, Kettunen, M., Kierepko, Renata, Kontro, R., Kwakman, P. J. M., Lecomte, M., Vintro, L. Leon, Leppanen, A-P, Lind, B., Lujaniene, G., Mc Ginnity, P., Mc Mahon, C., Mala, Helena, Manenti, S., Manolopoulou, M., Mattila, A., Mauring, A., Mietelski, Jerzy W., Moller, Bredo, Nielsen, S. P., Krneta-Nikolić, Jelena D., Overwater, R. M. W., Palsson, S. E., Papastefanou, C., Penev, I., Pham, M. K., Povinec, Pavel Peter, Rameback, H., Reis, M. C., Ringer, Wolfgang, Rodriguez, A., Rulik, Petr, Saey, P. R. J., Samsonov, V., Schlosser, C., Sgorbati, G., Silobritiene, B. V., Soderstrom, C., Sogni, R., Solier, L., Sonck, M., Steinhauser, Georg, Steinkopff, Thomas, Steinmann, P., Stoulos, S., Sykora, Ivan, Todorović, Dragana, Tooloutalaie, N., Tositti, L., Tschiersch, Jochen, Ugron, A., Vagena, E., Vargas, A., Wershofen, Herbert, Zhukova, O., Masson, Olivier, Baeza, A., Bieringer, Jacqueline, Brudecki, K., Bucci, S., Cappai, M., Carvalho, F. P., Connan, O., Cosma, C., Dalheimer, Axel, Didier, D., Depuydt, G., De Geer, L. E., De Vismes, Anne, Gini, L., Groppi, F., Gudnason, K., Gurriaran, R., Hainz, D., Halldorsson, O., Hammond, D., Hanley, O., Holey, K., Homoki, Zsolt, Ioannidou, A., Isajenko, Krzysztof A., Janković, Marija M., Katzlberger, Christian, Kettunen, M., Kierepko, Renata, Kontro, R., Kwakman, P. J. M., Lecomte, M., Vintro, L. Leon, Leppanen, A-P, Lind, B., Lujaniene, G., Mc Ginnity, P., Mc Mahon, C., Mala, Helena, Manenti, S., Manolopoulou, M., Mattila, A., Mauring, A., Mietelski, Jerzy W., Moller, Bredo, Nielsen, S. P., Krneta-Nikolić, Jelena D., Overwater, R. M. W., Palsson, S. E., Papastefanou, C., Penev, I., Pham, M. K., Povinec, Pavel Peter, Rameback, H., Reis, M. C., Ringer, Wolfgang, Rodriguez, A., Rulik, Petr, Saey, P. R. J., Samsonov, V., Schlosser, C., Sgorbati, G., Silobritiene, B. V., Soderstrom, C., Sogni, R., Solier, L., Sonck, M., Steinhauser, Georg, Steinkopff, Thomas, Steinmann, P., Stoulos, S., Sykora, Ivan, Todorović, Dragana, Tooloutalaie, N., Tositti, L., Tschiersch, Jochen, Ugron, A., Vagena, E., Vargas, A., Wershofen, Herbert, and Zhukova, O.

Abstract

Radioactive emissions into the atmosphere from the damaged reactors of the Fukushima Dai-ichi nuclear power plant (NPP) started on March 12th, 2011. Among the various radionuclides released, iodine-131 ((131)I) and cesium isotopes ((137)Cs and (134)Cs) were transported across the Pacific toward the North American continent and reached Europe despite dispersion and washout along the route of the contaminated air masses. In Europe, the first signs of the releases were detected 7 days later while the first peak of activity level was observed between March 28th and March 30th. Time variations over a 20-day period and spatial variations across more than 150 sampling locations in Europe made it possible to characterize the contaminated air masses. After the Chernobyl accident, only a few measurements of the gaseous (131)I fraction were conducted compared to the number of measurements for the particulate fraction. Several studies had already pointed out the importance of the gaseous (131)I and the large underestimation of the total (131)I airborne activity level, and subsequent calculations of inhalation dose, if neglected. The measurements made across Europe following the releases from the Fukushima NPP reactors have provided a significant amount of new data on the ratio of the gaseous (131)I fraction to total (131)I, both on a spatial scale and its temporal variation. It can be pointed out that during the Fukushima event, the (134)Cs to (137)Cs ratio proved to be different from that observed after the Chernobyl accident. The data set provided in this paper is the most comprehensive survey of the main relevant airborne radionuclides from the Fukushima reactors, measured across Europe. A rough estimate of the total (131)I inventory that has passed over Europe during this period was LT 1% of the released amount. According to the measurements, airborne activity levels remain of no concern for public health in Europe.

Published
2011

24. Tracking of Airborne Radionuclides from the Damaged Fukushima Dai-Ichi Nuclear Reactors by European Networks

Author

Masson, O., primary, Baeza, A., additional, Bieringer, J., additional, Brudecki, K., additional, Bucci, S., additional, Cappai, M., additional, Carvalho, F.P., additional, Connan, O., additional, Cosma, C., additional, Dalheimer, A., additional, Didier, D., additional, Depuydt, G., additional, De Geer, L.E., additional, De Vismes, A., additional, Gini, L., additional, Groppi, F., additional, Gudnason, K., additional, Gurriaran, R., additional, Hainz, D., additional, Halldórsson, Ó., additional, Hammond, D., additional, Hanley, O., additional, Holeý, K., additional, Homoki, Zs., additional, Ioannidou, A., additional, Isajenko, K., additional, Jankovic, M., additional, Katzlberger, C., additional, Kettunen, M., additional, Kierepko, R., additional, Kontro, R., additional, Kwakman, P.J.M., additional, Lecomte, M., additional, Leon Vintro, L., additional, Leppänen, A.-P., additional, Lind, B., additional, Lujaniene, G., additional, Mc Ginnity, P., additional, Mahon, C. Mc, additional, Malá, H., additional, Manenti, S., additional, Manolopoulou, M., additional, Mattila, A., additional, Mauring, A., additional, Mietelski, J.W., additional, Møller, B., additional, Nielsen, S.P., additional, Nikolic, J., additional, Overwater, R.M.W., additional, Pálsson, S. E., additional, Papastefanou, C., additional, Penev, I., additional, Pham, M.K., additional, Povinec, P.P., additional, Ramebäck, H., additional, Reis, M.C., additional, Ringer, W., additional, Rodriguez, A., additional, Rulík, P., additional, Saey, P.R.J., additional, Samsonov, V., additional, Schlosser, C., additional, Sgorbati, G., additional, Silobritiene, B. V., additional, Söderström, C., additional, Sogni, R., additional, Solier, L., additional, Sonck, M., additional, Steinhauser, G., additional, Steinkopff, T., additional, Steinmann, P., additional, Stoulos, S., additional, Sýkora, I., additional, Todorovic, D., additional, Tooloutalaie, N., additional, Tositti, L., additional, Tschiersch, J., additional, Ugron, A., additional, Vagena, E., additional, Vargas, A., additional, Wershofen, H., additional, and Zhukova, O., additional

Published
2011
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31. Study of Pu(IV) and Am(III) sorption to clay minerals: laboratory experiments and modeling.

Author

Lujaniene, G., Beneš, P., Štamberg, K., Vopalka, D., and Radžiūute, E.

Subjects
SORPTION, PLUTONIUM, AMERICIUM, CLAY, CEMENT
Abstract

Sorption of Pu(IV) and Am(III) to natural clay from a mixture of synthetic rainwater -- cement water was studied by batch and sequential extraction experiments as a function of pH and ionic strength These experiments were intended to simulate the effect of cement dissolution, causing the release of K+, Ca2+ and other cations from solidified radioactive waste into the aqueous phase. The results indicated a complex sorption behavior of the elements studied. It was found that iron oxides play an important role in the uptake of Pu(IV), whereas ion exchange and CaCO3 are mainly responsible for the binding of Am(III) on the clay. Simplified sorption experiments were conducted with clay minerals and iron oxides, using 0.01 and 0.1m o l/L NaNO3 as background electrolyte under an Ar atmosphere, for a better understanding of the sorption mechanisms. The experimental data were interpreted using the combination of surface complexation and ion-exchange models. [ABSTRACT FROM AUTHOR]

Published
2011
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32. Study of 137Cs, 90Sr, 239,240Pu, 238Pu and 241Am behavior in the Chernobyl soil.

Author

Lujaniene, G., Plukis, A., Kimtys, E., Remeikis, V., Jankünaite, D., and Ogorodnikov, B.I.

Abstract

The vertical distribution of 137Cs, 90Sr, 239,240Pu, 238Pu and 241Am was determined in soil samples collected from the Chernobyl exclusion zone in 1994. The results show very close distribution profiles for all radionuclides, with about 90% of the total activity of each nuclide lying between the surface and the fourth centimeter. Sequential extraction methods were used to determine the association of radionuclides in soil. The data on vertical distribution of radionuclide species were used to calculate their vertical migration parameters. [ABSTRACT FROM AUTHOR]

Published
2002
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41. Distribution characteristics of 137Cs, Pu isotopes and 241Am in soil in Korea.

Author

Lee, S.H., Oh, J.S., Lee, J.M, Lee, K.B., Park, T.S., Lujaniene, G., Valiulis, D., and Šakalys, J.

Subjects
*PLUTONIUM isotopes, *CESIUM isotopes, *NUCLIDES, *NUCLEAR fuels, *TRANSURANIUM elements, *RADIOISOTOPES, *ALKALI metals, *TRANSPLUTONIUM elements
Abstract

Abstract: Cesium-137, Plutonium isotopes and 241Am were studied in soil samples collected from Korea between 2006 and 2008 to provide information on the distribution and origin of Pu isotopes and 241Am. The vertical profiles of radionuclides showed higher activity concentrations at the surface layer and then gradually decreased with depth. A good correlation between 137Cs and 239,240Pu was observed, whereas a poor relationship between 137Cs and 241Am was found. The 238Pu/239,240Pu, 241Am/239,240Pu and 239,240Pu/137Cs activity ratios were concordant to those of the global fallout ratios. Furthermore, the atomic ratios of 240Pu/239Pu in the samples provided the information of Pu depositional history and the origin of Pu isotopes in Korea. [Copyright &y& Elsevier]

Published
2013
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42. Adsorption behaviour of pollutants: Heavy metals, radionuclides, organic pollutants, on clays and their minerals (raw, modified and treated): A review.

Author

Novikau R and Lujaniene G

Subjects
Adsorption, Aluminum Silicates, Clay, Ecosystem, Minerals, Radioisotopes, Environmental Pollutants, Metals, Heavy, Water Pollutants, Chemical
Abstract

The increasing anthropogenic pressure results in environmental pollution and thus adversely affects the integrity of ecosystems. Consequently, various methods of removing pollutants from effluents have been developed and used to minimise this negative impact, with adsorption on clay minerals identified as the most promising approach. This review examines the adsorption of heavy metals, radionuclides, and organic pollutants on clays/clay minerals and their composites under diverse conditions and deals with the applications of these materials in the construction of engineering barriers for waste management. Additionally, we discuss the efficiency and mechanisms of pollutant adsorption on clays subjected to various treatments and modifications while describing the beneficial effects of such modification/treatment on adsorption performance, reusability, and in vivo/in vitro toxicity., (Copyright © 2022 Elsevier Ltd. All rights reserved.)

Published
2022
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43. A review on speciation of iodine-129 in the environmental and biological samples.

Author

Hou X, Hansen V, Aldahan A, Possnert G, Lind OC, and Lujaniene G

Subjects
Animals, Atmosphere chemistry, Biological Availability, Geologic Sediments chemistry, Humans, Radioactive Waste, Soil analysis, Water chemistry, Environment, Iodine Radioisotopes analysis, Iodine Radioisotopes chemistry
Abstract

As a long-lived beta-emitting radioisotope of iodine, (129)I is produced both naturally and as a result of human nuclear activities. At present time, the main part of (129)I in the environment originates from the human nuclear activity, especially the releases from the spent nuclear fuel reprocessing plants, the (129)I/(127)I ratios have being reached to values of 10(-10) to 10(-4) in the environment from 10(-12) in the pre-nuclear era. In this article, we review the occurrence, sources, inventory, and concentration level of (129)I in environment and the method for speciation analysis of (129)I in the environment. Measurement techniques for the determination of (129)I are presented and compared. An overview of applications of (129)I speciation in various scientific disciplines such as radiation protection, waste depository, and environmental sciences is given. In addition, the bioavailability and radiation toxicity (dose to thyroid) of (129)I are discussed.

Published
2009
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