タグ「137Cs」
Author: Glagolenko Yu.G., Drozhko E.G., Mokrov Yu.G.
Reference: Gazette “ВОПРОСЫ РАДИАЦИОННОЙ БЕЗОПАСНОСТИ“ (Issues on radiation safety), 2007
ISSN: 1816-9643
DOI: 546.42 : 551.48
Keywords: Techa river, beta-emitting radionuclides, alpha-emitting radionuclides, long-lived 90sr and 137cs, Mayak production
Abstract: During 1949-1956 while implementing the State defense program by the Mayak Production Association routine (specified in the detail design) and accidental discharges of the liquid radioactive waste (LRW) into the open hydrographic system of the Techa river were performed. The discharged LRW consisted mainly of beta-emitting radionuclides of fission-fragment origin with half-life from several days to dozens of years and insignificant amounts (traces) of alpha-emitting nuclides (U, Pu, Am). By the middle of the 1960-s practically all the radionuclides contained in the discharged LRW had been subjected to the natural radioactive decay, and the river system radioactive contamination was determined only by the long-lived 90Sr and 137Cs and to a considerably lesser degree by the plutonium (238, 239, 240Pu) and 99Тс. The major part of the activity of the mentioned above radionuclides was deposited upon the swampy flood-plain area (Asanovsky swamps) in the upper Techa river. The following sources of the Techa river water radioactive contamination have been studied in this wok: – sorption-desorption of the activity from the Asanovsky swamps (90Sr); – bottom sediment stirring and activity transfer with suspensions (137Cs, Pu); – overland radioactive run-off from the catchment territory of the Techa river contaminated as a result of accidents occurred in 1957 and 1967 (90Sr, 137Cs); – filtration transfer of the activity from the Techa reservoir cascade (tritium, 90Sr). The data on activity margin of 90Sr, 137Cs, Pu and 99Тс deposited upon different river sections are provided. The analysis of the experimental and calculated data on volumetric activity and radioactive run-off of tritium, 90Sr, 137Cs, 99Tc and plutonium with the Techa river water depending on the water flow in the river is presented.
URL: http://elibrary.ru/item.asp?id=11643606
Title: Radio-ecological measures justification to reduce radiation loads in the population by using livestock’s contaminated products.
Author: Averin, Victor Sergeyevich
Reference: Gomel, 1999
Keywords: population, animal husbandry, 90Sr, 137Cs
Abstract: Research aim: Based on the study of behavior patterns ~ Cs and Sr in the animals’ body, the choice of methodology usage forage and evaluation of the expected collective dose, formed in the population as a result of purposeful flows change of radionuclides in the biological chain→soil – plant – animal – human; to develop radio-ecological justification of measures to reduce radiation loads within the population by using livestock’s contaminated products
URL:http://www.dissercat.com/content/radioekologicheskoe-obosnovanie-sistemy-mer-po-snizheniyu-radiatsionnykh-nagruzok-u-naseleni
Author: Odintsov, A. A.; Khan, V. E.; Krasnov, V. A.; Pazukhin, E. M.
Reference: Gazette “Radiochemistry”, 2007
ISSN: 0033-8311
DOI: 621.039.542
Keywords: drinking water, contamination, water pollution, radioisotopes, ricer, lake
Abstract: The volume activity of 3H, 90Sr, 137Cs, 234U, 235U, 238U, 238Pu, 239+240Pu, and 241Am in ground waters from observation holes 1-G-6-G in the north section of the Shelter local area of the Chernobyl Nuclear Power Plant (CNPP) was measured. The distribution of radionuclides in the suspension fractions of the ground waters was evaluated. The main contribution to the pollution of ground waters with uranium is due to natural uranium isotopes: 234,235,238U. The activity ratios of 238Pu, 239+240Pu, and 241Am in ground waters are similar to those in the spent fuel of 4th CNPP block.
URL: http://connection.ebscohost.com/c/articles/27081216/radionuclides-ground-waters-from-observation-holes-shelter-local-area
Title: Lake fish as the main contributor of internal dose to lakeshore residents in the Chernobyl contaminated area
Author: I.G Travnikova, A.N Bazjukin, G.Ja Bruk, V.N Shutov, M.I Balonov, L Skuterud, H Mehli, P Strand
Reference: Journal of Environmental Radioactivity, Volume 77, Issue 1, 2004, Pages 63-75
DOI: http://dx.doi.org/10.1016/j.jenvrad.2004.03.003
Keywords: Chernobyl; 137Cs; Lake; Internal exposure
Abstract: Two field expeditions in 1996 studied 137Cs intake patterns and its content in the bodies of adult residents from the village Kozhany in the Bryansk region, Russia, located on the shore of a drainless peat lake in an area subjected to significant radioactive contamination after the 1986 Chernobyl accident. The 137Cs contents in lake water and fish were two orders of magnitude greater than in local rivers and flow-through lakes, 10 years after Chernobyl radioactive contamination, and remain stable. The 137Cs content in lake fish and a mixture of forest mushrooms was between approximately 10–20 kBq/kg, which exceeded the temporary Russian permissible levels for these products by a factor of 20–40. Consumption of lake fish gave the main contribution to internal doses (40–50%) for Kozhany village inhabitants Simple countermeasures, such as Prussian blue doses for dairy cows and pre-boiling mushrooms and fish before cooking, halved the 137Cs internal dose to inhabitants, even 10 years after the radioactive fallout.
URL: http://www.sciencedirect.com/science/article/pii/S0265931X04000761
Title: Decision making framework for application of forest countermeasures in the long term after the Chernobyl accident
Author: S.V. Fesenko, G. Voigt, S.I. Spiridonov, I.A. Gontarenko
Reference: Journal of Environmental Radioactivity, Volume 82, Issue 2, 2005, Pages 143-166
DOI: http://dx.doi.org/10.1016/j.jenvrad.2004.10.014
Keywords: Chernobyl accident; Forest countermeasures; 137Cs; Decision making
Abstract: After the ChNPP accident a very large part of the territories covered by natural and artificial forests are contaminated with long-lived radionuclides, especially 137Cs. To protect people against exposure associated with forest contamination in the most affected regions of the NIS countries, countermeasures have been developed and recommended for the forest management. The paper presents a decision making framework to optimise forest countermeasures in the long term after the ChNPP accident. The approach presented is based on the analysis of the main exposure pathways and application of radiological, socio-economical and ecological criteria for the selection of optimal countermeasures strategies. Because of the diversity of these criteria modern decision support technologies based on multi-attributive analysis were applied. The results of the application of this approach are presented in a selected study area (Novozybkov district, Bryansk region, Russian Federation). The results prove and emphasize the need for a flexible technique to provide the optimised forest countermeasures taking into account radioecological, social and economic features of contaminated forests.
URL: http://www.sciencedirect.com/science/article/pii/S0265931X05000378
Author: Gudkov D.I., Nazarov A.B., Dzyubenko E.V., Kaglyan A.E., Klenus V.G.
Reference: Gazette “РАДИАЦИОННАЯ БИОЛОГИЯ. РАДИОЭКОЛОГИЯ “ (Radiation Biology, Radioecology), 2009
ISSN: 0869-8031
DOI: 10.1134/S0869803109060095
Keywords: freshwater mussels, contamination
Abstract: Observes the concentration of radionuclides of 90Sr, 137Cs, 238Pu, 239 + 240Pu и 241Am in freshwater mussels in the exclusion zone of Chernobyl. Analyzes radiation doses, frequency of chromosomal aberrations and composition of hemolymph in Lymnaea Stagnalis.
URL: http://elibrary.ru/item.asp?id=12989734
Author: Perevolotsky A. N., Bulavik I. M., Perevolotskaya T. V., Paskrobko L. A., Andrush C. N.
Reference: Gazette “РАДИАЦИОННАЯ БИОЛОГИЯ. РАДИОЭКОЛОГИЯ “ (Radiation Biology, Radioecology), 2005
ISSN: 0869-8031
DOI: [574:539.163]:630*6
Keywords: density of contamination of soil, ecotop, trophotop
Abstract:The studies of 137Cs and 90Sr accumulation characteristics by birch wood (Betula pendula Roth.) growing in different edaphic conditions. Describes the increase in soil fertility from trophotops A to D results in 5-fold 137Cs transfer factor decrease and 2-fold decrease of 90Sr. Soil humidity increase for each grade of trophic net results in the increase of 137Cs transfer factors to wood and decrease for 90Sr. Total activity of 137Cs and 90Sr in birch wood plantation depends on productivity of plantation and on radionuclide transfer factors depending on different plantation conditions. In the most prevailing edaphotops (B2, ВЗ, С2 and C3) birch wood accumulates 0.6-1.2% of 137Cs and 13-19% of 90Sr from total activity of radionuclides in biogeocenosis.
URL: http://elibrary.ru/item.asp?id=9149864
Title: Comparative analysis of the radionuclide composition in fallout in near and far areas after the Chernobyl and the Fukushima accidents
Author: Kotenko K.V., Shinkarev S.M., Abramov Yu.V., Granovskaya E.O., Yatsenko V.N., Gavrilin Yu.I., Margulis U.Ya., Garetskaya O.S., Imanaka T., Hoshi M.
Reference: Medicine of Labour and Industrial Ecology, Number: 10 Year: 2012 Pages: 1-5
ISSN: 1026-9428
Keywords: Fukushima, Chernobyl, Radioactive fallout, Iodine-131, I37CS
Abstract: [The nuclear accident occurred at Fukushima Dai-ichi Nuclear Power Plant (NPP) (March 11, 2011) similarly to the accident at the Chernobyl NPP (April 26, 1986) is related to the level 7 of the INES. It is of interest to make an analysis of the radionuclide composition of the fallout following both accidents. The results of the spectrometric measurements were used in the following comparative analysis. …]
URL:http://elibrary.ru/item.asp?id=18044355
Title: The usage of bioavailability data of radionuclides in highly radioactive soil of Savannah River to evaluate the effectiveness of doses from ingestion of Chernobyl soil
Author: Chang O.U, Ellickson Christie M.
Reference: Problems of Risk Analysis, Volume: 3 Number: 2 Year: 2006 Pages: 145-161
ISSN: 1812-5220
Keywords: Cesium-137, strontium-90, soil, bioavailability, dose, evaluation, Savannah River, Chernobyl
Abstract: A method for assessment of oral bioavailability of radionuclides in highly radioactive soil was developed, a bioavailability of 137Cs and 90Sr was measured.
URL: http://elibrary.ru/item.asp?id=16368070
Title: Decreasing dynamics of caesium 137 in agrocoenosis of autumn wheat in Oryol region 1985-2007
Author: Kazmin V.M., Poljakov A.G.
Reference: ACADEMIC PAPERS Orel State University. SERIES: natural, technical and medical sciences, Number: 4 Year: 2008 Pages: 97-101
Keywords: Agrocenosis, production, pollution, Chernobyl, cesium-137, monitoring
Abstract:The danger of technogenic pollution of 1. agrosenosis by radioactive substances is being examined (in the area where Chernobyl accident was of the main importance). The 2. dynamics of decreasing Cs137 in autumn wheat agrosenosis in Oryol region from 1985to 2007has been analyzed.
URL: http://elibrary.ru/item.asp?id=13217716
