Dr
Yoon Yeol Yoon
(Korea Institute of Geoscience and Mineral Resources)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
The use of radioactive isotopes as a groundwater-dating tool plays an important role in assessing the dynamics of groundwater systems, essential for the characterization of water resources and planning its exploitation. In hydrogeological studies the application of radioisotopes with a short half-life (below 100 year) is limited in dating old groundwater. However, they can be extremely helpful...
Róbert Janovics
(Institute of Nuclear Research of the HAS, Debrecen, Hungary)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
The new Hungarian National Radioactive Waste Disposal Facility was established in the granite of the Mórágy Block Mountains to store low and intermediate level radioactive waste (L/ILW) originating from the Paks Nuclear Power Plant. The safe operation of the radioactive waste disposal facilities requires a long-term environmental monitoring to gain information about the radiation properties of...
Mr
Guogang Jia
(National Institute of environmental protection and reasearch)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
Some important naturally occuring a and b radionuclides in seventeen brands of drinking water samples collected in Italy were determined. The mean activity concentrations (mBq L-1) of the radionuclides in the water samples were almost in the order: 26±36 (234U) > 21±30 (238U) > 8.9±15 (226Ra) > 4.8±6.3 (228Ra) > 4.0±4.1 (210Pb) > 3.2±3.7 (210Po) > 2.7±1.2 (212Pb) > 1.4±1.8 (224Ra) > 1.1±1.3...
Dr
Galina Lujaniene
(Institute of Physics, Savanorių ave 231, Vilnius, LT-02300, Lithuania)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
Natural clay and iron minerals of complex composition are reactive mineral phases which can affect retardation and transport of radionuclides in the environment. Therefore, it is important to understand and quantify sorption of radionuclides on them. Sorption of Cs, Pu(IV), Pu(V) and Am(III) at trace concentrations on three well characterized samples of Triassic clay as a function of pH and...
Dr
I. Lopes
(Nuclear and Technological Institute/ Radiological Protection and Safety Unit)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
The Nuclear and Technological Institute (ITN) has the legal responsibility to carry out the environmental radiological monitoring at a national level. This survey was planned to provide relevant information on radioactivity levels in different components of the ecosystem (atmosphere, aquatic and terrestrial environments). In what concerns the terrestrial environment the evaluation of the...
Prof.
HELEN PAPAEFTHYMIOU
(DIVISION OF INORGANIC, PHYSICAL AND NUCLEAR CHEMISTRY, DEPARTMENT OF CHEMISTRY, UNIVERSITY OF PATRAS, GREECE)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
Five small sediment cores were collected from the seafloor of the Amvrakikos Gulf for the study of the spatial and downcore distribution of natural radionuclides and 137Cs in the sediments. Amvrakikos Gulf is a shallow (< 65m) marine embayment lying on the west coast of Greece having a surface of some 405 km2 and a coastline length of 256 km. It is separated from the open Ionian Sea by a beach...
Dr
Ashraf Khater
(King Saud University)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
The Red Sea is a deep semi-enclosed and narrow basin that has an intensive non-industrial activities on and near its shore. Oil exploration, phosphate mining and trading, navigation activities and intensive touristic activities are considered as non-nuclear pollution sources. They could impose a serious radiological and ecological impacts on the Red Sea marine environment. Both oil and...
Dr
Eva Szeles
(Institute of Isotopes of the Hungarian Academy of Sciencies)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
A comprehensive environmental monitoring and analysis is very important before the decommissioning of a nuclear facility to assure the database for reveal undeclared clandestine nuclear activities.
Experiences in the process and sampling concerning decommissioning are not yet available in Hungary because the facilities have not still accomplished the end of their lifecycle.
Decommissioning...
Zoltán Hölgye
(National Radiation Protection Institute)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
In this work we present data on transuranium isotopes in effluents (quarterly, since 2006 half-yearly determined activity concentrations of 238Pu, 239,240Pu, 241Am, 242Cm and 244Cm in discharged effluents, annual discharged activities of individual radionuclides) discharged to air from 7 stacks in 2004-2009. In the effluents discharged to air from one stack low-level activities of transuranium...
Nils Baumann
(FZD)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
Nils Baumann*, Thuro Arnold
Forschungszentrum Dresden-Rossendorf e. V., Institute of Radiochemistry, P.O. Box 510119, D-01314 Dresden, Germany
*Tel.: +49 (351) 260 2076, Fax: +49 (351) 260 3553, Email: n.baumann@fzd.de
The test field “Gessenwiese” was installed on a leaching heap at the former uranium mining area Ronneburg (western Thuringia) for investigations in acid mining drainage and...
Dr
Sergey Gordeev
(Scientific and production enterprise "Radon")
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
Moscow is the historical center of the atom project of the former USSR.
Radioecological assesment of the territory of Moscow has been provided in compliance with the conception and program of comprehensive radioecological monitoring of the Moscow city, approved by the Moscow Goverment.
The methodology of the envitonmental monitoring is based on long-term determenation of concentration of the...
Mrs
Aliya Nurmukhanbetova
(Institute of Nuclear Physics)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
Ecological situation of Mangystau oblast (Kazakhstan) started aggravating in 1990s with exploration of uranium ore, oils, mineral raw and creation chemical industry in Mangyshlak without paying due attention to environmental issue. According to available data the worsening is connected to number of ecologically unfavorable problems.
The tailing pond KOSHKAR-ATA, representing the drain-free...
Dr
RŪTA DRUTEIKIENE
(INSTITUTE OF PHYSICS)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
The potential of migration of Pu at contaminated sites and also from the waste repository depends on the Pu environmental behavior determined by its chemical speciations. Depending on the ambient conditions plutonium exists in several oxidation states due to the low differences in the oxidation – reduction potentials between the oxidation states 1. The geochemical and physical...
Mr
Foued Gharbi
(UR-MTDN, National Center of Nuclear Sciences and Technolgies)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
The radioactivity concentrations of 226Ra, 232Th and 40K in different phosphate
fertilizers, triple superphosphate (TSP), diammonium phosphate (DAP),
monoammonium phosphate (MAP) and in phosphoric acids produced and used in the agricultural soils in Tunisia were measured. Other exported and used phosphate fertilizers in the country were also subject of radioactivity concentrations...
Dr
Dagmara Strumińska-Parulska
(University of Gdańsk)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
More than 100 samples of human hair and 15 samples of dog fur were collected from Pomeranian area for polonium analysis. The 210Po concentration in analyzed hair samples ranged from 0.33±0.02 to 12.84±0.80 mBq.g-1 dw (mean value is 3.41 mBq.g-1).
The highest 210Po activity values were found in hair sample collected from men had rich fish diet and...
Dr
Andrej Osterc
(Institute Jožef Stefan)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
I-129 is considered as a global pollutant and its role as a global tracer to follow the dissemination of radionuclides from a source point such as nuclear fuel reprocessing plants increases. The natural I-129/I-127 isotopic ratio in the order of 10E-12 was significantly influenced by releases of anthropogenic I-129 to the environment. The ratio of I-129/I-127 in the marine environment has...
Mr
Milan Bunata
(National Radiation Protection Institute)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
Plutonium 241 is the only beta emitting plutonium isotope formed by a nuclear reactor operation. In contrast to the other ones, its half life is relatively short (about 14 years). Emitting beta radiation, it decays to another important radionuclide, Am-241. Hence the activity of americium 241 is still increasing in the area of Chernobyl, Ukraine.
Nuclear fission leads to higher-order...
Dr
Dagmara Strumińska-Parulska
(University of Gdańsk)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
Wet and dry atmospheric fallout from nuclear weapon tests is one of the most important sources of plutonium in Baltic Sea. The other sources: plutonium releases from spent fuel facilities in Sellafield (UK) and Cap de la Hague (France) are less important. Since April 26, 1986 there is a new source of plutonium – Chernobyl plutonium, which should be taken under note in estimation of its...
Dr
Dagmara Strumińska-Parulska
(University of Gdańsk)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
Phosphogypsum refers to the gypsum formed as a by-product of processing phosphate ore into fertilizer with sulfuric acid. They are radioactive due to the presence of naturally occurring uranium and radium in the phosphate ore and enriched in natural polonium 210Po, while the uranium radionuclides (234U and 238U) tend to be in waters around waste dump. The...
Mr
Dmitry Manzon
(Institute of global climat and ecology)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
The aim of this work is generalizing experimental researches data received in zone of Chernobyl trace in 2007 in Bryansk region in order to automorph, transit and accumulation landscapes. Variabiliy of 137Cs levels in shown at the 3 experimental sites.
Mr
Bojan Štrbac
(Radiation Protection Centre)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
Surface soil samples (0-15 cm) were collected from the region of Banja Luka (Bosnia and Herzegovina), in order to evaluate their radioactivity. Concentrations of radionuclides in samples were determined by γ-ray spectrometer using HPGe detector. The obtained results of uranium and thorium series as well as potassium K-40 and Cs-137 activity concentrations are discussed. The radioactivity...
Dr
Andrzej Grosicki
(National Veterinary Research Institute, Department of Radiobiology, Pulawy, Poland)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
An increased level of caesium radioisotopes was noted in many foodstuffs after the Chernobyl disaster. The radiocaesium activity concentrations may remain high in products such as game meat, wild mushrooms, and forest berries. Therefore, an official monitoring of radiocaesium in game meat was established by Polish Veterinary Inspection. Generally, consumption of game meat in Poland is low....
Dr
Ashraf Khater
(King Saud University)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
Phosphate rock beneficiation processes (crushing, screening, washing, magnetic separation and wet screening) aims to increase the phosphorus content of the run-of-mine (ROM) ore. It starts with the ROM ore and ends with the wet rock, and different rejects (by-products). These by-products have potential environmental hazards due to their content of Naturally Occurring Radioactive Materials –...
Dr
Abdisamat Vasidov
(senior staff scientist)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
Vasidov A.,Salikhbaev U.S., Kist A.A., Raduyk R.I.
Institute of Nuclear Physics, Tashkent, Uzbekistan
Central Asia Countries were the main supplier of the uranium in former USSR and one of them was the Republic of Uzbekistan. As a mining activity and conversion of uranium ores had resulted to formation large amounts of radioactive wastes, that had have make an exigency problem, as...
Ms
Violeta Hansen
(Radiation Research Department, Risø National Laboratory for Sustainable Energy,Technical University of Denmark- DK-4000 Roskilde, Denmark)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
Long physical half life, long residence time in the marine environment and continuous releases from nuclear fuel reprocessing plants make 129I a suitable tracer for the study of marine geochemical cycle of stable iodine and conversion mechanism of iodine species by speciation analysis of 129I and127I. Up to date there are few data on chemical speciation of 129I in seawater and no 129I...
Ms
Violeta Hansen
(Radiation Research Department, Risø National Laboratory for Sustainable Energy,Technical University of Denmark – DTU)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
Iodine is a biophilic tracer element with thirty-four isotopes including one long-lived isotope, 129I (15,7 My), and one stable isotope, 127I. Toxicity, mobility, bioavailability, bioactivity, and the uptake of iodine in environment are governed by its chemical speciation and the soil or sediment conditions. It is therefore important to identify and quantify different physicochemical...
Mr
Toni Petrovic
(Student of Jožef Stefan International Postgraduate School, Ljubljana, Slovenia)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
The European legislation (Council Directive 98/83/ec) requests the member sates to control the radioactive contamination of drinking water. As a part of these measurements γ-ray spectrometric measurements are performed. Samples of 50 L of water are evaporated and the residue after evaporation is measured. Typically, 20 g – 40 g of residue is obtained.
Since by γ-ray spectrometry activity...
Ms
Galina Sokolik
(Belarus State University)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
Alpha-emitting uranium and radium are present practically in all ecosystems and together with their decay products play an important role in formation of internal radiation dose of population from natural radionuclides. This dose depends essentially not only on the content of radionuclides in environmental components, but also on the radionuclides’ state and migratory ability in a soil...
Dr
Alegria Natalia
(University of the Basque Country)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
From the Sun and interstellar spaces of the universe the primary cosmic radiation comes to the Earth. These cosmic rays interact with the nuclei of atmospheric constituents, producing an interaction cascade and secondary reaction and also produce a number of radioactive nuclei known as cosmogenic, 7Be between others as a result of spallation reactions.
In Bilbao (north of Spain) there is a...
Dr
Kil Yong Lee
(Korea Institute of Geoscience and Mineral Resources)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
Emanation of radon (222Rn) from rock and partition of radon between water and air are important parameters, so its evaluation is of significance in the study of radiation protection, environmental geochemistry, climate change and so on. In this study, emanation of radon from rock particles (1-2 mm) to water and partition of radon between water and air by temperature of 0, 10 and 20...
Róbert Janovics
(Institute of Nuclear Research of the HAS, Debrecen, Hungary)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
Automatic water sampling unit was developed in Herteleni Laboratory of Environmental Studies of MTA ATOMKI for monitoring the radioactive emission from nuclear facilities into the groundwater. The efficiency of existing and renewed geometry units and the reproducibility of survey data have been examined in the course of this work. A testing method was developed for this purpose, and ion...
Mr
Mikalai Puzan
(NATIONAL ACADEMY OF SCIENCES OF BELARUS State scientific institution "Institute of Radiobiology")
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
The Chernobyl accident was accompanied by release into the atmosphere of a large number of radionuclides with long half-life. As a result of exposure to biological objects most dangerous in the long term are included in the composition of the fuel particles transuranic elements (TUE-239, 240Pu, 241Am), are a - emitters. Radionuclides with different half-life and environmental features included...
Mrs
Lyudmila Ishchenko(Krivoshey)
(Ukrainian Research Institute of Industrial Medicine, Krivoy Rog, Ukraine)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
N. Karnaukh, L. Ishchenko
Some regions of Ukraine are Radon dangerous. Geologic peculiarities of Krivbass region, available mining tunnels, historic habits in housing construction, decreased morbidity on malignant tumor of population specify the actuality of “Radon” problem studying in iron-ore region which should be consider at estimation of radiation exposure to population.
By our own...
Prof.
Karin Popa
(“Al.I. Cuza University”, Department of Chemistry, 11 – Carol I Blvd., 700506 – Iasi, Romania)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
The present study follows the extent of translocation radioactivity from substrates of uranium and sulphur mining area to the macromycetes spontaneously occurred during 2008-2009. To this end, radioactivity measurements (gross α+β, 226Ra, and 137Cs) on both macromycetes and their substrates were made. The resultants obtained were confirmed by FT-IR spectroscopy, evidencing the presence of...
Mr
Stefan Bister
(Leibniz University Hanover; Center for Radiation Protection and Radioecology)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
The Mulde River, a tributary of the Elbe River in east-central Germany, is formed by the confluence of the Freiberger Mulde and the Zwickauer Mulde, both rising from the Erzgebirge. Running north, the two rivers merge near the small village of Sermuth to form the Vereinigte Mulde, which flows into the Elbe River near Dessau. The Erzgebirge or Ore Mountains are a mountain range, which is...
Dr
Andrzej Grosicki
(National Veterinary Research Institute, Department of Radiobiology, Pulawy, Poland)
19/04/2010, 11:45
Radionuclides in the Environment, Radioecology
Poster
Examinations were carried out to compare the effects of Prussian Blue (PB), Ca-gluconate, and Na-citrate on removal of radioceasium from male Wistar rats. The animals were randomly divided into 5 groups of 10 animals each. Radioceasium was administered by intragastric intubation to all tested rats for 5 concecutive days with a daily dose of 20 kBq. Animals in group 1 (the controls) were...
