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タグ「Strontium」

Plutonium, 90Sr and 241Am in human bones from southern and northeastern parts of Poland

Title: Plutonium, 90Sr and 241Am in human bones from southern and northeastern parts of Poland

Author: Kamil Brudecki, Jerzy W. Mietelski, Robert Anczkiewicz, Edward B. Golec, Ewa Tomankiewicz,

Konstanty Kuźma, Paweł Zagrodzki, Joanna Golec, Sebastian Nowak, Elżbieta Szczygieł, Zbigniew Dudkiewicz

Reference: Journal of Radioanalytical and Nuclear Chemistry, Volume 299, Issue 3 , pp 1379-1388

DOI: 10.1007/s10967-013-2850-y

Keywords: Plutonium, Americium, Strontium, Chernobyl, Mass spectrometry, Pu isotopic ratios, Human bones

Abstract: The paper presents the results of our study on 238Pu, 239Pu, 240Pu, 241Am and 90Sr concentration in human bones carried out on a set of 88 individual samples of central Europe origin. Bone tissue samples were retrieved under surgery while introducing hip joint implants. The conducted surgeries tend to cover either southern or northeastern parts of Poland. While for the southern samples only global fallout was expected to be seen, a mixed global and Chernobyl fallout were to be reflected in the others. Alpha spectrometry was applied to obtain activity concentration for 238Pu, 239+240Pu, 241Am, while liquid scintillation spectrometry for 90Sr and mass spectrometry to receive 240Pu/239Pu mass ratio. Surprisingly enough, and to the contrary to our expectations we could not see any significant differences in either Pu activity or Pu mass ratio between the studied populations. In both populations Chernobyl fraction proved marginal. The results on 90Sr and 241Am confirm similarities between the two examined groups.

URLhttp://link.springer.com/article/10.1007/s10967-013-2850-y

Analysis of radiational and chemical risks for the areas affected by accidents in the Southern Urals and Chernobyl

Title: Analysis of radiational and chemical risks for the areas affected by accidents in the Southern Urals and Chernobyl

Author: Katkova, Margarita Nikolayevna

Reference: Obninsk, 2009

Keywords: cesium-137, strontium-90, radiation risk, chemical risk, accident in the Southern Urals (Chelyabinsk region, v.Novogorny), Chernobyl nuclear power plant, population

Abstract: The purpose of the research:  analysis and evaluation of radiation and chemical risks to the population in the areas affected by the massive radiation accidents at the Chernobyl nuclear power plant (south-west of the Bryansk region) and in the Southern Urals (Chelyabinsk region, p.Novogorny).

URL:http://www.dissercat.com/content/analiz-radiatsionnykh-i-khimicheskikh-riskov-dlya-territorii-podvergshikhsya-vozdeistviyu-av

Some aspects of minimize the consequences of the Chernobyl disaster

Title: Some aspects of minimize the consequences of the Chernobyl disaster

Author: Demichev D.M.

Reference: Journal “-АГРАРНОЕ И ЗЕМЕЛЬНОЕ ПРАВО» No.7  2010

ISSN: 1815-1329

Keywords: CHERNOBYL CATASTROPHE,   THE ACCIDENT AT THE CHERNOBYL ATOMIC POWER STATION,   THE MINIMIZATION OF THE CONSEQUENCES OF THE CATASTROPHE,   RADIOACTIVE NUCLIDE,   RADIOACTIVE SUBSTANCES: STRONTIUM-90,   CAESIUM-137,   PLUTONIUM-239,   THE PARTICIPATORS OF THE LIQUIDATION OF THE CONSEQUENCES OF THE CATASTROPHE,   DISPLACED PERSONS

Abstract:  In the article the social, economic, medical, legal consequences of the catastrophe of the Chernobyl atomic power station in the Republic of Belarus are investigated, the part of the state authorities of the Russian Federation and the Republic of Belarus in the achievement of joint programs for overcoming the stated consequences are revealed, the proposals on perfection of functioning of the state-legal mechanism of minimization of the consequences of the Chernobyl catastrophe are substantiated.

URL: http://elibrary.ru/item.asp?id=15242449

Evaluation and prediction of radiation-ecological state of the natural environment in the area of the Chernobyl contamination: the case of the Bryansk region.

Title: Evaluation and prediction of radiation-ecological state of the natural environment in the area of the Chernobyl contamination: the case of the Bryansk region.

Author: Starodubov, Alexey Valeryevich

Reference: Moscow, 2007

Keywords: area of long-term radioactive contamination, Bryansk region, safe living conditions, population, prediction, natural environment, plutonium, americium, cesium, strontium

Abstract: The main objective of the work is to establish a scientific and methodological framework for assessing and predicting the radiation situation in the area of long-term radioactive contamination by the fragmentation fission products and trans-uranic elements of Chernobyl genesis (for example, the south-western part of the Bryansk region) necessary to ensure safe living conditions of the population and planning household activity.

URL:http://www.dissercat.com/content/otsenka-i-prognozirovanie-radiatsionno-ekologicheskogo-sostoyaniya-prirodnoi-sredy-v-zone-ch

Nano-sized colloidal-steady sorbent for decontamination of bulk solids, and methods for decontaminating the bulk solids with its use

Author: S.Yu. Bratskaya, V.A. Avramenko, V.I. Sergienko, Yu.P. Korchagin

Reference: Patent, Vladivostok, 11.1.2010,  patent holder: Institution of the Russian Academy of Sciences, Institute of Chemistry, Far Eastern Branch of Russian Academy of Sciences

Keywords: colloidally-stable nanosorbent, strontium, soil

Abstract: Decontamination of radio-strontium. The proposed colloidally-stable nano sorbent represents reaction product combined with an equivalent amount of calcium cations, or a mixture of barium and sulfate anions in a medium stable emulsion of copolymers of acrylic acid with a particle size of not more than 500 nm. The new nanosorbent is a mobile-selective sorbent, for decontamination of radionuclides strontium, capable, due to its small size of the particles, of penetrating into the pore space of soil, providing efficient extraction of radionuclides.

URL: http://www.findpatent.ru/patent/242/2427419.html

Veterinary-health assessment of decontaminated meat, structurally contaminated by radionuclide cesium and strontium

Author: A.S. Mashkov

Reference: Dissertation, candidate of veterinary sciences, Moscow, 2006

Keywords: meat, decontamination, ionization, accumulation

Abstract: The aim of the work is to carry out veterinary-sanitary examination and biological evaluation of meat contaminated structurally by mixture of cesium, strontium and various methods of deactivation.

URL: http://www.dissercat.com/content/veterinarno-sanitarnaya-otsenka-dezaktivirovannogo-myasa-strukturno-zagryaznennogo-radionukl

Dynamics of radiostrontium leaching from radioactively contaminated floodplain soils of the Yenisei River (English)

Author: E. K. Legin, Yu. I. Trifonov, M. L. Khokhlov, D. N. Suglobov, E. E. Legina, V. K. Legin

Reference: Gazette “Radiochemistry“, 2008

ISSN:

DOI: 10.1134/S1066362208010177

Keywords: strontium, decontamination, waterlogged soils, 90sr, 137cs, river

Abstract: Gleyzation-mediated leaching of radiostrontium from floodplain soils of the Krasnoyarsk Mining and Chemical Combine (MCC) activity zone [Atamanovskii Island (front part), Oseredysh Island (front part), and Berezovyi Island (rear part)] is studied with model systems. Leaching of radiostrontium from waterlogged soils is analyzed in terms of the model of anaerobic biosolubilization of gel films. The leaching of radiostrontium is found to correlate with that of iron, confirming the cosolubilization model. Addition of glucose (0.5%) as a stimulant for growth of iron-reducing microorganisms increases the dynamic coefficient of radiostrontium leaching, particularly in soils with lower organic matter content. The model experiments showed that the radiostrontium leaching rate from floodplain soil is higher by 2–3 orders of magnitude than that of radio-cesium, suggesting the possibility of escape of radiostrontium from the floodplain of the Yenisei River with the intrasoil runoff. This conclusion is supported by the experimental data on the 90Sr/137Cs ratio in the floodplain of the Yenisei River downstream of MCC (0.01–0.1).

URL: http://link.springer.com/article/10.1134%2FS1066362208010177?LI=true#

Physical rationality of the universal model of radioactive depositions after the Chernobyl accident

 

Author: Ermilov A.P., Ziborov A.M.

Reference: journal “РАДИАЦИЯ И РИСК“ (Radiation and risk), 1997

ISSN: 0131-3878

DOI:

Keywords: universal model, cesium, strontium, zirconium, niobium

Abstract: A possibility of developing a universal model for the Chernobyl depositions is substantiated. The model relates radionuclides specifications and correlation ratios of activities in depositions and characteristics of preaccidental fuel and the accident circumstances. Within the model, consideration is given to two main groups of radionuclides in terms of their volatility. One group consists of non-volatile refractory radionuclides (zirconium, niobium, cerium, europium, neptunium, plutonium) and the second – radionuclides having both fuel and free activity components in the depositions (cesium, strontium, antimony, ruthenium, barium and others). The physical and chemical differences in the two deposition species dictate the search of regularities in formation of each of them, in particular deriving correlation ratios of radionuclides in the fuel and condensation components of the radioactive contamination.

URL: http://elibrary.ru/item.asp?id=9950808

On the influence of flooding on the distribution of 137CS and 90SR in forest ecosystems

 

Author: Perevolotskaya T.V., Bulavik I.M., Perevolotsky A.N.

Reference: Gazette “РАДИАЦИОННАЯ БИОЛОГИЯ. РАДИОЭКОЛОГИЯ “ (Radiation Biology, Radioecology), 2009

ISSN: 0869-8031

DOI: 10.1134/S0869803109030059

Keywords: 137cs, 90sr, ground water, phytomass

Abstract: The distribution of 137Cs and 90Sr in oak, pine and hornbeam stands at different levels of groundwater is analyzed. It is proven that the scale of migration of 137Cs and 90Sr in the vertical profile of the soils is determined by level of ground water in the experimental field: closer to the surface the ground water is found, the less radionuclides is contained on the surface of the soil, and vice versa. Coefficients are determined by “fast” and “slow” quasidiffusion of 137Cs and 90Sr. Description of the contribution of these components to the overall migration of radionuclide transport in the vertical profile of the soil. Coefficients of decreasing of 137Cs and increasing of 90Sr, for the element of overground phytomass by the decreasing of groundwater, is observed. 

URL: http://elibrary.ru/item.asp?id=12450575

GLOBAL 90SR DISCHARGE FROM SOIL COVER WITH RIVER RUNOFF INTO THE ARCTIC OCEAN (English)

 

Author: BAKUNOV N.A., SAVATYUGIN L.M., BOL’SHIYANOV D.YU.

Reference: Gazette “WATER RESOURCES“, 2007

ISSN: 0097-8078

DOI: 10.1134/S0097807807020078

Keywords: 90sr, river

Abstract: Describes the migration of 90sr from soil to rivers in the northern European and Asian territories above Russia.

URL: http://elibrary.ru/item.asp?id=13544966

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