Author: Kaz’min V.M., Polyakov A.G.
Reference: Scientific Notes of Orel State University. series: natural, technical and health sciences, 2008
ISSN: 1998-2739
DOI:
Keywords: ecosystem, contamination, 137cs, agrocenoses
Abstract: The article describes the radio-contamination, by137cs, of forest ecosystem in Orel region after the Chernobyl disaster.
Author: Belopolskiy А.Е.
Reference: International bulletin of veterinary, St. Petersburg State Academy of Veterinary Medicine (St. Petersburg), 2011
ISSN: 2072-2419
DOI: 636. 085 : 616 – 001.28 / 29. 008. 6
Keywords: veterinary, 134-137cs, 90sr, soil
Abstract: Now both people and the animals who are in polluted areas, receive up to 80 % of a dose at the expense of an internal irradiation [mainly with food ] such radionuclides as caesium 134-137 and strontium 90. The greatest danger is represented by strontium 90, being an alpha- and beta – a radiator it is a source of densely ionizing radiation with the big period half-decay. Radionuclides constantly circulating and collecting in various bodies and fabrics with various intensity irradiate cages – targets, as in cases of a unitary and chronic irradiation. The obtained data testifies that in the circumstances it is necessary to conduct constantly radiating veterinarno-sanitary control over safety of products of a vegetative and animal origin not only in the markets and the processing enterprises, but also in economy. Being engaged in manufacture of forages in the polluted territories to carry out necessary agro- technical and agrochemical actions for decrease in level of radio nuclides in soil. To cultivate crops of cultures which to a lesser degree accumulate radio-nuclides. Performance of all actions should not admit hit of harmful radioactive substances in an organism of an animal, and through livestock products and plant growing in a human body.
Author: Ivanov D.M., Efremova M.A.
Reference: Bulletin of St. Petersbourg University: Biology, 2012
ISSN: 1025-8604
DOI: 582.287.23:574
Keywords: BIRCH MUSHROOMS, ASPEN MUSHROOMS, HIBINY, ARTIFI CIAL AND NATURAL RADIOISOTOPES, ACCUMULATION FACTOR, 137cs, 40k
Abstract: The article reveals that concentration of 137Cs and other radioisotopes in the fungal fruit bodies of the Leccinum genus collected in the area of Hibiny Mountains is within the limits of the admissible values. The accumulation factors of 137Cs and 40К in the fungal fruit bodies depend on soil acidity. Changes in soil рНН2О from 5,40 up to 7,33 cause a decrease of the accumulation factors of radioisotopes in fungi by more than 7 times.
Author: Khvostova M.S.
Reference: journal “ТЕОРЕТИЧЕСКАЯ И ПРИКЛАДНАЯ ЭКОЛОГИЯ“ (Theoretical and applied ecology), 2008
ISSN: 1995-4301
DOI: 621.039
Keywords: radionuclides, migration, biogeocenoses, living organisms
Abstract: The history of research of Chernobyl catastrophe radiological consequences and of the role of geographical factors in its development is stated. The contribution of a number of institutes of Academy of Sciences and of separate researchers into investigation of radionuclides migration in biogeocenoses and radioactive influence on living organisms including man is noted.
Author: Makhon’ko K.P., Kozlova E.G., Volokitin A.A.
Reference: journal “РАДИАЦИЯ И РИСК“ (Radiation and risk), 1996
ISSN: 0131-3878
DOI:
Keywords: deposition by typhoon, soil surface, exposure dose, 137cs, 131i, 132te
Abstract: The paper presents distributions of external doses and absorbed doses from thyroid internal exposure on the territory of the former USSR due to exposure of 131I and 132I released into the environment as a result of the Chernobyl accident. Dose assessments were based on measurements of daily depositions of 131I and 132Te from the atmosphere made by SPA Typhoon. The main body of available measurement data were added with calculations of 131I depositions from space-time correlations and results of measurements of total p-activity, 137Cs etc. Based on these data calculations were made of 131I and 132I accumulation on soil surface, exposure dose rate and exposure dose from y-irradiation 131I and 132I from the soil surface, and absorbed thyroid doses from incorporated 131I and 132I. Estimated errors in calculations are also presented. Besides, the paper includes ganerated maps of 131I contamination of the soil by 15 May 1986 and distribution of external and internal thyroid exposure doses from incorporated 131I and 132I accumulated by 1 september 1986. The dominant radiation load from 131I and 132I has been shown to be due to internal thyroid exposure to incorporated 131I. Given no iodine prophylaxis and restrictions in the diet of the residents, it could have been three orders of magnitude higher the external exposure doses. In different points of the former USSR, the maximum contamination was reported on different dates from 28 April to 3 May 1986. By estimation, of the major cities the highest radiation loads due to 131I occired in Gomel where by 1 June the exposure dose was 134 mR and the thyroid exposure dose was 166 cSv. The highest radiation loads from 132Te + 132I were in Kiev where by 1 June 1986 the thyroid exposure dose was 720 |xSv (72 mrem) and the exposure dose – 965 mR.
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.
Author: S. M. Vakulovskii, Ya. I. Gaziev, L. V. Kolesnikova, G. I. Petrenko, É. G. Tertyshnik, A. D. Uvarov
Reference: Kluwer Academic Publishers-Consultants Bureau, 2006
ISSN: 1063-4258
DOI: 10.1007/s10512-006-0052-1
Keywords: 137cs, 90sr, river, lake
Abstract: The dynamics of the radioactive contamination with 137Cs and 90Sr of the Besed’ and Iput’ rivers in 1987–2004 and the nondraining Lake Svyatoe on the Besed’ River and the slowly draining Lake Kozhanovskoe in 1992–2002 is prsented. Data on the contamination of the components and shorelines of reservoirs are presented. It is shown that the radioactive contamination of these rivers is decreasing; the present level of contamination is much lower than the intervention level. The radionuclide content in the nondraining and slowly draining lakes remains high. Specifically, the 137Cs concentration in the waters of Lake Svyatoe on the Besed’ River is at the intervention level, and the 137Cs concentration in the fish in Lake Kozhanovskoe is ten times higher than the established norms.
URL: http://link.springer.com/article/10.1007%2Fs10512-006-0052-1#
Author: Romantsova N.А., Paramonova Т.А.
Reference: journal “XXI ВЕК: ИТОГИ ПРОШЛОГО И ПРОБЛЕМЫ НАСТОЯЩЕГО ПЛЮС” (XXI CENTURY: PAST AND PRESENT PROBLEMS PLUS), 2012
ISSN: 2221-951x
DOI: 57.045:57.042
Keywords: 137cs, agricultural products, accumulation, soil
Abstract: The investigation of accumulation levels of 137Cs in biomass of main field crop rotation cultures (wheat, barley, potato) and of meadow ecosystems in -Plavsk radioactive spot of Tula region demonstrated that at density of radioactive pollution of soils ~200-430 кBq/m2(5-12 Ki/km2) green parts of plants accumulate 0,01-0,02 кBq/m2, and underground parts œ 0,1-3,3 кBq/m2. Accumulation 137Cs in biomass depends on biological features of vegetation, and also is in close direct dependence with accumulation of 137Cs in soils.
Author: Romantsova N.А.
Reference: Gazette “XXI ВЕК: ИТОГИ ПРОШЛОГО И ПРОБЛЕМЫ НАСТОЯЩЕГО ПЛЮС” (XXI CENTURY: PAST AND PRESENT PROBLEMS PLUS), 2012
ISSN: 2221-951x
DOI: 57.045:57.042
Keywords: natural and technogenic radionuclides, 40k, 232th, 226ra, 137cs, Tula region
Abstract: The modern radiating background of the Plavsky radioactive spot of Tula region is formed at the expense of natural (40К,232Th,226Ra) and technogenic radionuclides (137Cs). Thus the share 137Cs from the general stocks of radionuclides in soils makes 48-67 %, and as a part of vegetative production œ only 5-14 % that reveals insignificant parameters of transition of an element from soils in plants.
Author: Kaz’min V.M., Polyakov A.G.
Reference: Scientific Notes of Orel State University, 2008 Series: natural, technical and health sciences
ISSN: 1998-2739
DOI:
Keywords: agrocenoses contamination, decrease of 137cs, autumn wheat
Abstract: In the article is examined the danger of technogenic pollution of agrocenoses by radioactive substances, where Chernobyl AES accident was of the main importance. The dynamics of decreasing Cs137 in autumn wheat agrocenoses in Orel region from 1985 to 2007 is being analyzed.