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First data on the uranium content in water of the Yenisei River basin in the area affected by the operation of Rosatom plants / A. Y. Bolsunovskii [et al.] // Doklady Earth Sciences. - 2011. - Vol. 439, Is. 1. - P1010-1015, DOI 10.1134/S1028334X11070208 . - ISSN 1028-334X
Кл.слова (ненормированные):
Inorganic chemistry -- Isotope ratio -- Isotopic composition -- Long term monitoring -- River basins -- Russian Academy of Sciences -- Uranium contents -- Uranium isotopes -- Water samples -- Effluents -- Inorganic compounds -- Isotopes -- Mass spectrometry -- Nuclear fuels -- Rivers -- Uranium -- Watersheds -- Water content -- effluent -- environmental monitoring -- isotopic composition -- isotopic ratio -- mass spectrometry -- tributary -- uranium isotope -- Russian Federation -- Yenisei River
Аннотация: This study is devoted to investigating the content of uranium isotopes in water of the Yenisei River and its tributaries within the territories affected by the operation of Rosatom plants (mining chemical combine, and electrochemical plant). Long-term monitoring of the 238U content by mass spectrometry carried out in two institutes of the Siberian Branch of the Russian Academy of Sciences first revealed the multiple excess of 238U over the background content in different areas of the Yenisei River basin, such as the region of the Yenisei River near the effluents of the mining and chemical combine (MCC), and the territories of the Bol'shaya Tel' and Kan rivers. In these regions, the 238U content in water reaches 2.1-4.0 ?g/l, which exceeds its content upstream from the MCC (0.3-0.6 ?g/l) by almost an order of magnitude. The studies of the isotopic composition of uranium in water samples, which were carried out at the Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, showed the presence of a technogenic isotope of uranium 236U in the samples from the Bolshaya Tel' River and revealed the deviation of the isotope ratio 238U/ 235U (167 В± 3 and 177 В± 3) from the equilibrium natural ratio ( 238U/ 235U = 138). These facts attest to the technogenic origin of part of the uranium in water of the Bol'shaya Tel' River connected with the activity of MCC. The excess uranium content in the Kan River requires additional studies to ascertain the fraction of uranium of technogenic origin connected with the activity of the electrochemical plant (ECP) (Fig. 1, Table 4). В© 2011 Pleiades Publishing, Ltd.

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Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Institute of Chemistry and Chemical Engineering, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bolsunovskii, A.Y.; Zhizhaev, A.M.; Saprykin, A.I.; Degermendzhi, A.G.; Rubailo, A.I.

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Model assessment of the migration capability of transuranium radionuclides (241Am and Pu isotopes) and 152Eu in the system bottom sediments-Yenisei river water by chemical fractionation technique / L. G. Bondareva [et al.] // Radiochemistry. - 2005. - Vol. 47, Is. 4. - P415-421, DOI 10.1007/s11137-005-0112-8 . - ISSN 1066-3622
Аннотация: Sorption of radiotracers 241Am and 242Pu and weighable amounts of uranium and stable Eu on bottom sediments in the simulated system bottom sediments-Yenisei river water was studied. At a contact time of 40 min these metals are completely sorbed on the bottom sediments, presumably via association with organomineral complexes and hydrated gels. Along with sorption, these metals can form soluble complexes and stable colloids (pseudocolloids). The distribution factors of 241Am and 242Pu, and stable Eu in the simulated system between bottom sediments and liquid phases were calculated from the results of sorption experiments. The introduced 241Am and 152Eu initially present in radioactively contaminated bottom sediments of the Yenisei river show similar pattern of distribution over differently mobile fractions. The distribution of weighable amounts of stable Eu significantly differs from that of initially present 152Eu and tracer 241Am due to decelerated sorption of stable Eu and its considerably higher concentration. A significant part of 242Pu, 241Am, and 152Eu is associated with mobile fractions of bottom sediments, which, under certain environmental conditions, can pass into river water as migrating species. В©2005 Pleiades Publishing, Inc.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Joint Institute of Geology, Geophysics, and Mineralogy, Siberian Division, Russian Academy of Sciences, Novosibirsk, Russian Federation
Institute of Chemistry and Chemical Technology, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bondareva, L.G.; Bolsunovskii, A.Ya.; Sukhorukov, F.V.; Kazbanov, V.I.; Makarova, I.V.; Legler, E.V.

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Radionuclide speciation in sediments of the Yenisei River / A. Bolsunovsky // Radioprotection. - 2011. - Vol. 46, Is. 6 SUPPL. - S195-S198, DOI 10.1051/radiopro/20116457s . - ISSN 0033-8451
Аннотация: The examination of sediment samples collected from the Yenisei River revealed the presence of artificial radionuclides characteristic of radioactive discharges from the MCC facility: isotopes of europium (152Eu, 154Eu, and 155Eu), cesium (137Cs and 134Cs), 60Co,90Sr, and transuranium elements. Radionuclide concentrations in sediment layers remained high as far as 240 km downstream of the MCC. The vertical distribution of radionuclides in sediment cores was very complex, and down-core variations were due to different amounts of radionuclides released by the MCC and due to variations in the hydrologic conditions in the river. Sequential extraction performed on samples of the upper layers of the sediment core showed different degrees of potential environmental availability of artificial radionuclides: the amounts of extracted 90Sr, 152Eu and 241Am were the largest (60-80% of initial activity), then followed 60Co (30%), 238,239,240Pu (15-30%), and, last, 137Cs (5-15%). The distribution of 238U among chemical fractions of sediments was similar to that of 60Co and 238,239,240Pu: 30-40% of 238U initial activity was extracted. In a few samples, 241Am was present in the unextractable form, which may be accounted for by the presence of microparticles of the reactor fuel. В© 2011 EDP Sciences.

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Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, 660036 Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bolsunovsky, A.

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Chemical fractionation of radionuclides and stable elements in aquatic plants of the yenisei river / A. Bolsunovsky // Environmental Science and Technology. - 2011. - Vol. 45, Is. 17. - P7143-7150, DOI 10.1021/es2008853 . - ISSN 0013-936X
Кл.слова (ненормированные):
Aquatic plants -- Artificial radionuclides -- Cell structure -- Chemical Fractionation -- Distribution patterns -- Nuclear plant -- Plant biomass -- Sequential extraction scheme -- Stable elements -- Submerged plants -- Transuranic elements -- Americium -- Biomass -- Neptunium -- River pollution -- Rivers -- Radioisotopes -- americium -- element -- neptunium -- radioisotope -- bioaccumulation -- chemical binding -- gamma ray spectrometry -- isotopic fractionation -- monocotyledon -- phytomass -- radionuclide -- river pollution -- submerged vegetation -- aquatic species -- article -- Batrachium kauffmanii -- biomass -- cell structure -- controlled study -- extraction -- Fontinalis antipyretica -- fractionation -- gamma spectrometry -- higher plant -- nonhuman -- plant growth -- Potamogeton lucens -- Potamogetonaceae -- river -- Russian Federation -- Aquatic Organisms -- Biomass -- Chemical Fractionation -- China -- Industrial Waste -- Plants -- Radiation Monitoring -- Radioisotopes -- Rivers -- Water Pollutants, Radioactive -- Russian Federation -- Yenisei River -- Batrachium -- Fontinalis antipyretica -- Potamogeton lucens
Аннотация: The Yenisei River is contaminated with artificial radionuclides released by one of the Russian nuclear plants. The aquatic plants growing in the radioactively contaminated parts of the river contain artificial radionuclides. The aim of the study was to investigate accumulation of artificial radionuclides and stable elements by submerged plants of the Yenisei River and estimate the strength of their binding to plant biomass by using a new sequential extraction scheme. The aquatic plants sampled were: Potamogeton lucens, Fontinalis antipyretica, and Batrachium kauffmanii. Gamma-spectrometric analysis of the samples of aquatic plants has revealed more than 20 radionuclides. We also investigated the chemical fractionation of radionuclides and stable elements in the biomass and rated radionuclides and stable elements based on their distribution in biomass. The greatest number of radionuclides strongly bound to biomass cell structures was found for Potamogeton lucens and the smallest for Batrachium kauffmanii. For Fontinalis antipyretica, the number of distribution patterns that were similar for both radioactive isotopes and their stable counterparts was greater than for the other studied species. The transuranic elements 239Np and 241Am were found in the intracellular fraction of the biomass, and this suggested their active accumulation by the plants. В© 2011 American Chemical Society.

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Держатели документа:
Institute of Biophysics SB, Russian Academy of Sciences, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bolsunovsky, A.

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Actinides and other radionuclides in sediments and submerged plants of the Yenisei River / A. Bolsunovsky, L. Bondareva // Journal of Alloys and Compounds. - 2007. - Vol. 444-445, Is. SPEC. ISS. - P495-499, DOI 10.1016/j.jallcom.2007.01.146 . - ISSN 0925-8388
Кл.слова (ненормированные):
Accumulation -- Actinides in aquatic plants and sediments -- Radiochemical and ?-spectrometric investigations -- Sequential extraction technique -- Yenisei River -- Actinides -- Bioaccumulation -- Plants (botany) -- Radioisotopes -- Rivers -- Sampling -- Sediments -- Mining-and-Chemical combine (MCC) -- Radiochemical and spectrometric investigations -- Sediment samples -- Sequential extraction techniques -- Contamination
Аннотация: The source of radioactive contamination of the Yenisei River floodplain, including contamination with actinides, is the Mining-and-Chemical combine (MCC), which has for many years been producing weapons-grade plutonium. Actinides have been detected not only in the soil and sediment of the river but also in the biomass of aquatic plants. The aim of our investigation was to assess the levels of actinides and other radionuclides in sediments and aquatic plants both near the MCC and at a considerable distance from it, down the Yenisei River. Investigations of the Yenisei River sediment samples revealed high activity concentrations of actinides (Pu isotopes and 241Am), which were 100 times higher than their global fallout levels. Sequential extraction of radionuclides from samples of sediments collected near the MCC showed that the amounts of extracted 241Am were the largest (up to 98% of initial activity). It was found that aquatic plants of the Yenisei River collected both near the MCC discharge site and at a distance up to 200 km downstream contained several actinide isotopes. The aquatic moss, Fontinalis antipyretica, was found to contain higher levels of radionuclides than Potamogeton lucens. Leaves of P. lucens contained higher levels of radionuclides, including 239Np, than stems. Sequential extraction of radionuclides from samples of aquatic plants showed that 239Np levels in exchangeable and adsorption fractions of P. lucens biomass were higher than in the respective fractions of F. antipyretica biomass. В© 2007 Elsevier B.V. All rights reserved.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch, the Russian Academy of Sciences, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bolsunovsky, A.; Bondareva, L.

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New data on transuranium elements in the ecosystem of the Yenisei river floodplain / A. Bolsunovsky, A. Ermakov, A. Sobolev // Radiochimica Acta. - 2007. - Vol. 95, Is. 9. - P547-552, DOI 10.1524/ract.2007.95.9.547 . - ISSN 0033-8230
Кл.слова (ненормированные):
243,244Cm -- Blackcurrant -- Sediment and floodplain soil of the Yenisei river -- Soil-plant transfer factor (TF) -- Transuranium elements
Аннотация: The aim of the study is to investigate levels of transuranium elements in the ecosystem of the Yenisei river floodplain in the vicinity of the Mining-and-Chemical Combine of Rosatom. For the first time, the transuranium isotopes 243,244Cm have been detected in sediment, floodplain soil, and a berry shrub (Ribes nigrum - the blackcurrant) in the flood-plain of the Yenisei river. The highest level of curium isotopes registered in the sediment of the Yenisei river is 21.4 Bq/kg (dry), which is more than twice higher than maximum curium levels reported for soils sampled not far from the Chernobyl Nuclear Plant. Blackcurrant plants growing on radioactively contaminated soils contain the same transuranium elements as the soil (plutonium isotopes, americium, and curium). The highest activity concentrations of all transuranic elements have been found in ashed roots of the blackcurrant plants: 239,240Pu - 9.3 Bq/kg, 241Am - 6.9 Bq/kg, and 243,244Cm - 1.8 Bq/kg. The highest soil-plant transfer factor (TF) for 243,244Cm is determined for roots - 0.073; the TF of 243,244Cm in berries is 0.027. The TF for 239,240Pu in berries is 0.006, which is several times lower than the TF for 243,244Cm. Analysis of our results and the literature data suggests that TFs for 243,244Cm are higher than those for 239,240Pu and 241Am. В© by Oldenbourg Wissenschaftsverlag.

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Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
SIA RADON, Moscow, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bolsunovsky, A.; Ermakov, A.; Sobolev, A.

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Artificial radionuclides in aquatic plants of the Yenisei River in the area affected by effluents of a Russian plutonium complex / A. Bolsunovsky // Aquatic Ecology. - 2004. - Vol. 38, Is. 1. - P57-62, DOI 10.1023/B:AECO.0000020950.43944.ec . - ISSN 1386-2588
Кл.слова (ненормированные):
?-radionuclides -- Aquatic plants -- Concentration factor -- Isotopes of plutonium -- aquatic plant -- bioaccumulation -- effluent -- radionuclide -- Eurasia -- Russian Federation -- Yenisei River -- Bryophyta -- Fontinalis -- Fontinalis antipyretica -- Potamogeton -- Potamogeton lucens
Аннотация: The Yenisei River, one of the largest rivers in the world, is contaminated with artificial radionuclides released by one of the Russian nuclear plants, which produces weapons-grade plutonium and has been in operation for many years. The aim of the study that was conducted between 1997 and 2002 was to investigate accumulation of artificial radionuclides by aquatic plants of the Yenisei River. The aquatic plants sampled were: Potamogeton lucens (shining weed) and Fontinalis antipyretica (water moss). The ?-spectrometric analysis of the samples of aquatic plants for artificial radionuclides has revealed a wide spectrum of long-lived and short-lived radionuclides. Artificial radionuclides such as 51Cr, 54Mn, 58Co, 60Co, 65Zn, 137Cs, and 152Eu were found in aquatic plants collected both near the plutonium complex and 194 km downstream in the river. The radiochemical analysis of aquatic plants revealed strontium and isotopes of plutonium. Fontinalis antipyretica had very high concentration factors of the principal radionuclides: 14220, 3110 and 500 of 51Cr, 46Sc and 239Np, respectively.

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Держатели документа:
Institute of Biophysics SB RAS, Akademgorodok, Krasnoyarsk 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bolsunovsky, A.

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Artificial radionuclides in sediment of the Yenisei River / A. Bolsunovsky // Chemistry and Ecology. - 2010. - Vol. 26, Is. 6. - P401-409, DOI 10.1080/02757540.2010.504668 . - ISSN 0275-7540
Кл.слова (ненормированные):
Artificial radionuclides -- River sediments -- Sequential extraction -- Yenisei river -- cesium isotope -- cobalt isotope -- concentration (composition) -- europium -- extraction method -- industrial waste -- radionuclide -- river pollution -- sediment chemistry -- Krasnoyarsk [Russian Federation] -- Russian Federation -- Yenisei River -- Zheleznogorsk
Аннотация: Releases from the nuclear facility Mining-and-Chemical Combine (MCC) located at Zheleznogorsk have contributed to the radionuclide contamination of the Yenisei River since operations commenced in 1958. The aim of this study was to assess the activity concentrations of artificial radionuclides and the strength of their binding in Yenisei River sediments. Investigation of Yenisei River sediment samples revealed the presence of artificial radionuclides typical of the MCC radioactive discharge: namely, isotopes of europium, caesium, 60Co and transuranium elements. The concentrations of artificial radionuclides in the sediment layers remain relatively high as far as 200 km downstream of the MCC. In sediment cores collected upstream of the MCC, ? -spectrometric measurements registered only one artificial radionuclide, 137Cs, with a maximal activity of 8 BqВ·kg -1. Sequential extraction performed on samples of the upper layers of the sediment core showed different degrees of potential environmental availability for artificial radionuclides: the highest was recorded for 241Am and 152Eu (up to 85% of initial activity), followed by 60Co (up to 32%), and finally, 137Cs (up to 15%). In a few samples, 241Am was present in the unextractable form, which may be accounted for by the presence of reactor fuel microparticles. В© 2010 Taylor & Francis.

Scopus
Держатели документа:
Institute of Biophysics of the Siberian Branch of Russian Academy of Sciences, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bolsunovsky, A.

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Sediments of the Yenisei River: Monitoring of radionuclide levels and estimation of sedimentation rates / A. Bolsunovsky, D. Dementyev // IAHS-AISH Publication. - 2010. - Vol. 337: Symposium on Sediment Dynamics for a Changing Future (14 June 2010 through 18 June 2010, Warsaw) Conference code: 84220. - P143-148
Кл.слова (ненормированные):
Artificial and natural radionuclides -- Dating methods -- River sediments -- Sedimentation rates -- Yenisei river -- Dating methods -- Natural radionuclides -- River sediments -- Sedimentation rates -- Yenisei river -- Anoxic sediments -- Cesium -- Europium -- Lead -- Nuclear energy -- Nuclear weapons -- Plutonium -- Radioisotopes -- River pollution -- Sedimentation -- Sedimentology -- Strontium -- Uranium -- Rivers -- cesium isotope -- cobalt isotope -- europium -- fluvial deposit -- plutonium isotope -- radioactive pollution -- radioactive waste -- radionuclide -- sampling -- sediment core -- sediment pollution -- sedimentation rate -- Krasnoyarsk [Russian Federation] -- Russian Federation -- Yenisei River
Аннотация: The Yenisei River, one of the largest rivers in the world, is contaminated with artificial radionuclides released by a Russian nuclear facility producing weapon-grade plutonium, which has been in operation for many years. Examination of Yenisei River sediment samples revealed the presence of artificial radionuclides typical of radioactive discharge from the Mining-and-Chemical- Combine (MCC) nuclear facility: isotopes of europium ( 152Eu, 154Eu, and 155Eu), caesium ( 137Cs and 134Cs), 60Co, 90Sr, and transuranium elements. Maximum radionuclide concentrations in sediments remained high as far as 240 km downstream of the MCC. In sediment cores collected upstream of the MCC, ?-spectrometric measurements registered only one artificial radionuclide, 137Cs, with a maximum activity of approx. 8 Bq kg -1 dry mass. Sediments of the Yenisei River also contain natural radionuclides. Sedimentation rates in several sections of the Yenisei River were determined using, different approaches: the 210Pb dating method and the ratios of artificial radionuclides - 137Cs/ 60Co and 152Eu/ 154Eu. With increasing distance downstream of the city of Krasnoyarsk, sedimentation rates increased from 0.88 cm year -1 to 1.30-1.51 cm year -1. Copyright В© 2010 IAHS Press.

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Держатели документа:
Institute of Biophysics SB RAS, Akademgorodok, 660036, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bolsunovsky, A.; Dementyev, D.

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10.

Microbiological and isotopic-geochemical investigations of meromictic lakes in Khakasia in winter / A. S. Savvichev [и др.] // Mikrobiologiya. - 2005. - Vol. 74, Is. 4. - С. 552-561 . - ISSN 0026-3656
Кл.слова (ненормированные):
Meromictic water bodies -- Microbial production and oxidation of methane -- Photosynthesis -- Stable isotopes of carbon (? 13C) and sulfur (? 34S) -- Sulfate reduction -- Bacteria (microorganisms) -- Chlorobi -- Chromatiaceae -- Lamprocystis purpurea -- Pelodictyon luteolum -- Photobacteria -- carbon -- fresh water -- methane -- sulfate -- sulfur -- article -- bacterial phenomena and functions -- bacterium -- comparative study -- isolation and purification -- metabolism -- microbiology -- oxidation reduction reaction -- photosynthesis -- Russian Federation -- season -- species difference -- Bacteria -- Bacterial Physiology -- Carbon Isotopes -- Fresh Water -- Methane -- Oxidation-Reduction -- Photosynthesis -- Seasons -- Siberia -- Species Specificity -- Sulfates -- Sulfur Isotopes -- Water Microbiology
Аннотация: Microbiological and isotopic-geochemical investigations of the brackish meromictic lakes Shira and Shunet were performed in the steppe region of Khakasia in winter. Measurements made with a submersed sensor demonstrated that one-meter ice transmits light in a quantity sufficient for oxygenic and anoxygenic photosynthesis. As in the summer season, in the community of phototrophic bacteria found in Lake Shira, the purple sulfur bacteria Amoebobacter purpureus dominated, whereas, in Lake Shunet, the green sulfur bacteria Pelodictyon luteolum were predominant. Photosynthetic production, measured using the radioisotopic method, was several times lower than that in summer. The rates of sulfate reduction and production and oxidation of methane in the water column and bottom sediments were also lower than those recorded in summer. The process of anaerobic methane oxidation in the sediments was an exception, being more intense in winter than in summer. The data from radioisotopic measurements of the rates of microbial processes correlate well with the results of determination of the isotopic composition of organic and mineral carbon (? 13C) and hydrogen sulfide and sulfate (? 34S) and suggest considerable seasonal variations in the activity of the microbial community in the water bodies investigated.

Scopus
Держатели документа:
Winogradsky Institute of Microbiology, Russian Academy of Sciences, pr. 60-letiya Oktyabrya, Moscow, 117811, Russian Federation
Institute of Biophysics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk 36, 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Savvichev, A.S.; Rusanov, I.I.; Rogozin, D.Yu.; Zakharova, E.E.; Lunina, O.N.; Bryantseva, I.A.; Yusupov, S.K.; Pimenov, N.V.; Degermendzhi, A.G.; Ivanov, M.V.

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11.

Microbiological and isotopic-geochemical investigations of meromictic lakes in Khakasia in winter / A. S. Savvichev [et al.] // Microbiology. - 2005. - Vol. 74, Is. 4. - P477-485, DOI 10.1007/s11021-005-0092-x . - ISSN 0026-2617
Кл.слова (ненормированные):
Meromictic water bodies -- Microbial production and oxidation of methane -- Photosynthesis -- Stable isotopes of carbon (?13C) and sulfur (?34S) -- Sulfate reduction -- Chlorobi -- Chromatiaceae -- Lamprocystis purpurea -- Pelodictyon luteolum -- Photobacteria
Аннотация: Microbiological and isotopic-geochemical investigations of the brackish meromictic lakes Shira and Shunet were performed in the steppe region of Khakasia in winter. Measurements made with a submersed sensor demonstrated that one-meter ice transmits light in a quantity sufficient for oxygenic and anoxygenic photosynthesis. As in the summer season, in the community of phototrophic bacteria found in Lake Shira, the purple sulfur bacteria Amoebobacter purpureus dominated, whereas, in Lake Shunet, the green sulfur bacteria Pelodictyon luteolum were predominant. Photosynthetic production, measured using the radioisotopic method, was several times lower than that in summer. The rates of sulfate reduction and production and oxidation of methane in the water column and bottom sediments were also lower than those recorded in summer. The process of anaerobic methane oxidation in the sediments was an exception, being more intense in winter than in summer. The data from radioisotopic measurements of the rates of microbial processes correlate well with the results of determination of the isotopic composition of organic and mineral carbon (?13C) and hydrogen sulfide and sulfate (?34S) and suggest considerable seasonal variations in the activity of the microbial community in the water bodies investigated. В© 2005 Pleiades Publishing, Inc.

Scopus
Держатели документа:
Winogradsky Institute of Microbiology, Russian Academy of Sciences, pr. 60-letiya Oktyabrya, Moscow, 117312, Russian Federation
Institute of Biophysics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk 36, 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Savvichev, A.S.; Rusanov, I.I.; Rogozin, D.Yu.; Zakharova, E.E.; Lunina, O.N.; Bryantseva, I.A.; Yusupov, S.K.; Pimenov, N.V.; Degermendzhi, A.G.; Ivanov, M.V.

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12.

Accumulation of artificial radionuclides by the Yenisei river aquatic plants in the area affected by the activity of the Mining-and-Chemical Combine / A. Ya. Bolsunovskij [и др.] // Radiatsionnaya Biologiya. Radioekologiya. - 2002. - Vol. 42, Is. 2. - С. 194-199 . - ISSN 0869-8031
Кл.слова (ненормированные):
Contamination -- Ecosystems -- Environmental impact -- Gamma ray spectrometers -- Radioisotopes -- River pollution -- Radioecological concentration -- Radioisotope accumulation -- The Yenisei river -- Ecology -- plutonium -- radioisotope -- strontium -- article -- chemical industry -- chemistry -- comparative study -- gamma spectrometry -- industrial waste -- mining -- nuclear reactor -- plant -- radiochemistry -- Russian Federation -- water pollutant -- Chemical Industry -- Industrial Waste -- Mining -- Nuclear Reactors -- Plants -- Plutonium -- Radiochemistry -- Radioisotopes -- Siberia -- Spectrometry, Gamma -- Strontium Radioisotopes -- Water Pollutants, Radioactive
Аннотация: The aim of the paper is to investigate accumulation of artificial radionuclides by the Yenisei river aquatic plants collected in the area affected by the activity of the Mining-and-Chemical Combine (Zheleznogorsk) from 1997 to 2000. The samples of aquatic plants were of four species: Potamogeton lucens, Fontinalis antipyretica, Elodea canadensis, and Ceratophyllum demersum. The gamma-spectrometric analysis of the samples of aquatic plants for artificial radionuclides revealed a wide spectrum of radionuclides. Radionuclides of activation origin were found in the aquatic plants taken both near the Combine and 200 km down of it. The radiochemical analysis of aquatic plants revealed strontium and plutonium isotopes. Among the aquatic plants, the highest concentration factors for the principal radionuclides were recorded in Fontinalis antipyretica (water moss).

Scopus
Держатели документа:
Inst. of Biophysics, Siberian Branch, RAS, Krasnoyarsk, 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bolsunovskij, A.Ya.; Ermakov, A.I.; Burger, M.; Degermendzhy, A.G.; Sobolev, A.I.

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13.

Stable isotope composition of fatty acids in organisms of different trophic levels in the yenisei river / M. I. Gladyshev [et al.] // PLoS ONE. - 2012. - Vol. 7, Is. 3. - Ст. e34059, DOI 10.1371/journal.pone.0034059 . - ISSN 1932-6203
Кл.слова (ненормированные):
carbon 13 -- fatty acid -- carbon -- Apatania crymophila -- article -- benthos -- Eulimnogammarus viridis -- fatty acid analysis -- fatty acid desaturation -- Fontinalis antipyretica -- food chain -- food web -- freshwater fish -- isotope analysis -- lipid composition -- microalga -- moss -- nonhuman -- pelagic zone -- river ecosystem -- Russian Federation -- stable isotope analysis -- Thymallus arcticus -- trophic level -- animal -- chemistry -- larva -- metabolism -- river -- Bryophyta -- Gammaridae -- Trichoptera -- Animals -- Carbon Isotopes -- Fatty Acids -- Food Chain -- Larva -- Microalgae -- Rivers
Аннотация: We studied four-link food chain, periphytic microalgae and water moss (producers), trichopteran larvae (consumers I), gammarids (omnivorous - consumers II) and Siberian grayling (consumers III) at a littoral site of the Yenisei River on the basis of three years monthly sampling. Analysis of bulk carbon stable isotopes and compound specific isotope analysis of fatty acids (FA) were done. As found, there was a gradual depletion in 13C contents of fatty acids, including essential FA upward the food chain. In all the trophic levels a parabolic dependence of ? 13C values of fatty acids on their degree of unsaturation/chain length occurred, with 18:2n-6 and 18:3n-3 in its lowest point. The pattern in the ? 13C differences between individual fatty acids was quite similar to that reported in literature for marine pelagic food webs. Hypotheses on isotope fractionation were suggested to explain the findings. В© 2012 Gladyshev et al.

Scopus
Держатели документа:
Institute of Biophysics of Siberian Branch of Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Gladyshev, M.I.; Sushchik, N.N.; Kalachova, G.S.; Makhutova, O.N.

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14.

New process for transuranide preconcentration in water samples from the Yenisei River [Text] / L. G. Bondareva [et al.] // Dokl. Chem. - 2008. - Vol. 423. - P311-313, DOI 10.1134/S001250080812001X. - Cited References: 14 . - 3. - ISSN 0012-5008

РУБ Chemistry, Multidisciplinary
Рубрики:
ACTINIDES
ISOTOPES

Держатели документа:
[Bondareva, L. G.
Bolsunovskii, A. Ya.
Degermendzhi, A. G.] Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia
[Trapeznikov, A. V.] Russian Acad Sci, Ural Div, Inst Plant & Anim Ecol, Ekaterinburg 690144, Russia : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bondareva, L.G.; Bolsunovskii, A.Y.; Trapeznikov, A.V.; Degermendzhi, A.G.

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15.

Hot particles in the Krasnoyarsk Krai [Text] / A. Y. Bolsunovskii [et al.] // Radiochemistry. - 1998. - Vol. 40, Is. 3. - P278-281. - Cited References: 22 . - 4. - ISSN 1066-3622

РУБ Chemistry, Analytical + Chemistry, Inorganic & Nuclear
Рубрики:
CHERNOBYL
ACCIDENT
RADIONUCLIDES
Аннотация: The radionuclidic composition of several high-level hot particles (PIP) found during field work in the region of the Atamanovskii island of the Yenisei river just near the Krasnoyarsk Mining Chemical Plant (MCP) was determined. The activity ratios of Pu and Cs isotopes in these particles revealed their reactor origin. The age of HPs was estimated in terms of one possible pathway of their formation.

Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Div, Krasnoyarsk, Russia
Russian Acad Sci, VI Vernadskii Inst Geochem & Analyt Chem, Moscow, Russia : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bolsunovskii, A.Y.; Goryachenkova, T.A.; Cherkezyan, V.O.; Myasoedov, B.F.

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16.

HOT PARTICLES IN THE FLOODPLAIN OF THE YENISEI RIVER [Text] / A. . Bolsunovsky ; ed.: DH Oughton, Oughton, // RADIOACTIVE PARTICLES IN THE ENVIRONMENT. Ser. NATO Science for Peace and Security Series C - Environmental Security : SPRINGER, 2009. - NATO Advanced Research Workshop on Hot Particles Released from Different Nuclear Sources (MAY 07-10, 2007, Yalta, UKRAINE). - P111-121, DOI 10.1007/978-90-481-2949-2_6. - Cited References: 8 . - 11. - ISBN 1871-4668. - ISBN 978-90-481-2947-8

РУБ Environmental Sciences
Рубрики:
RADIONUCLIDES
RUSSIA
Кл.слова (ненормированные):
hot particles -- Yenisei River -- floodplain soils and sediments -- plutonium complex -- cesium and plutonium isotopes -- (241)Am -- dating of particles
Аннотация: The purpose of this study was to investigate radionuclide composition of the hot particles found in the floodplain of the Yenisei River and to discuss their possible Sources. Since 1995, researchers of the Institute of Biophysics have found a considerable number of hot particles that contain up to 29,000 kBq/particle of (137)Cs in the Yenisei River floodplain. Investigations of the particles in Krasnoyarsk, Moscow, and Novosibirsk have confirmed their reactor origin and made it possible to roughly estimate their age. Based oil comparative analysis of (137)Cs/(134)Cs ratios, all the particles can be divided into two or three major groups, suggesting that over the 50-year period of the MCC operation, there have been two or three emergency situations at the MCC reactors, with nuclear fuel microparticles released into the Yenisei. Microparticles containing up to 36 Bq/particle of (241)Am were detected in soil and sediment samples collected at the Yenisei River. In some of these particles the (137)Cs/(241)Am ratio is high but in the others - low. It remains unknown how these particles have been formed. However, these microparticles Occur in floodplain soils and sediments very frequently and, thus, can be considered to be the main form in which radionuclides are present in the Yenisei River floodplain. The presence of a large number of hot particles of different origin in the floodplain of the Yenisei River from the MCC production area down to the town of Yeniseisk (and, probably, farther downstream) is a source of potential health hazard to people.

Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bolsunovsky, A...; Oughton, DH \ed.\; Oughton, \ed.\

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17.

(19)F NMR study on the biodegradation of fluorophenols by various Rhodococcus species [Text] / V. S. Bondar [et al.] // Biodegradation. - 1998. - Vol. 9: NMR in Environmental Sciences Symposium (OCT 24, 1997, EDE, NETHERLANDS), Is. 6. - P475-486, DOI 10.1023/A:1008391906885. - Cited References: 37 . - ISSN 0923-9820

РУБ Biotechnology & Applied Microbiology
Рубрики:
NUCLEAR-MAGNETIC-RESONANCE
   PSEUDOMONAS-PUTIDA MT-2
   PHENOL HYDROXYLASE
   BACTERIAL-DEGRADATION
   3-OXOADIPATE PATHWAY
   FLUOROBENZOIC ACID
   CONVERSION
   METABOLISM
   CYCLOISOMERASES
   2-CHLORO-CIS,CIS-MUCONATE
Кл.слова (ненормированные):
biodegradation -- fluorophenols -- (19)F NMR -- oxidative defluorination -- Rhodococcus species
Аннотация: Of all NMR observable isotopes (19)F is the one perhaps most convenient for studies on biodegradation of environmental pollutants. The reasons underlying this potential of (19)F NMR are discussed and illustrated on the basis of a study on the biodegradation of fluorophenols by four Rhodococcus strains. The results indicate marked differences between the biodegradation pathways of fluorophenols among the various Rhodococcus species. This holds not only for the level and nature of the fluorinated biodegradation pathway intermediates that accumulate, but also for the regioselectivity of the initial hydroxylation step. Several of the Rhodococcus species contain a phenol hydroxylase that catalyses the oxidative defluorination of ortho-fluorinated di- and trifluorophenols. Furthermore, it is illustrated how the (19)F NMR technique can be used as a tool in the process of identification of an accumulated unknown metabolite, in this case most likely 5-fluoromaleylacetate. Altogether, the (19)F NMR technique proved valid to obtain detailed information on the microbial biodegradation pathways of fluorinated organics, but also to provide information on the specificity of enzymes generally considered unstable and, for this reason, not much studied so far.

Держатели документа:
Agr Univ Wageningen, Dept Biomol Sci, Biochem Lab, NL-6703 HA Wageningen, Netherlands
Russian Acad Sci, Inst Biochem & Physiol Microorganisms, Pushchino 142292, Russia
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bondar, V.S.; Boersma, M.G.; Golovlev, E.L.; Vervoort, J...; Van Berkel, WJH; Finkelstein, Z.I.; Solyanikova, I.P.; Golovleva, L.A.; Rietjens, IMCM

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18.

Radioactive contamination of pine (Pinus sylvestris) in Krasnoyarsk (Russia) following fallout from the Fukushima accident / A. Bolsunovsky, D. Dementyev // J. Environ. Radioact. - 2014. - Vol. 138. - P87-91, DOI 10.1016/j.jenvrad.2014.08.003 . - ISSN 0265-931X
Кл.слова (ненормированные):
Fukushima accident -- Pine samples -- Radiocesium activity ratio -- Radionuclides -- Russia -- Activity ratios -- Fukushima accidents -- Pinus sylvestris -- Radioactive contamination -- Russia -- Radioisotopes -- Pinus sylvestris
Аннотация: Following the Fukushima accident in March 2011, samples of pine trees (Pinus sylvestris) were collected from three sites near the city of Krasnoyarsk (Siberia, Russia) during 2011-2012 and analyzed for artificial radionuclides. Concentrations of Fukushima-derived radionuclides in the samples of pine needles in April 2011 reached 5.51 ± 0.52 Bq kg-1 131I, 0.92 ± 0.04 Bq kg-1 134Cs, and 1.51 ± 0.07 Bq kg-1 137Cs. An important finding was the detection of 134Cs from the Fukushima accident not only in the pine needles and branches but also in the new shoots in 2012, which suggested a transfer of Fukushima cesium isotopes from branches to shoots. In 2011 and 2012, the 137Cs/134Cs ratio for pine needles and branches collected in sampling areas Krasnoyarsk-1 and Krasnoyarsk-2 was greater than 1 (varying within a range of 1.2-2.6), suggesting the presence of “older“, pre-Fukushima accident 137Cs. Calculations showed that for pine samples growing in areas of the Krasnoyarskii Krai unaffected by contamination from the nuclear facility, the activity of the Fukushima-derived cesium isotopes was two-three times higher than the activity of the pre-accident 137Cs.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch of Russian Academy of Sciences, 50-50 AkademgorodokKrasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bolsunovsky, A.; Dementyev, D.

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19.

Hot particles of the Yenisei River flood plain, Russia [Text] / A. Y. Bolsunovsky, V. O. Tcherkezian // J. Environ. Radioact. - 2001. - Vol. 57, Is. 3. - P. 167-174, DOI 10.1016/S0265-931X(01)00021-2. - Cited References: 12 . - ISSN 0265-931X

РУБ Environmental Sciences
Рубрики:
CONTAMINATION
CHERNOBYL
ACCIDENT
Кл.слова (ненормированные):
hot particles -- Yenisei river -- plutonium complex -- caesium and plutonium isotopes -- dating of particles
Аннотация: Some high-activity hot particles (HP) were found in the flood plain of the Yenisei River, near the Krasnoyarsk Mining-and-Chemical Combine (MCC). and their radionuclide compositions were determined. The ratios of plutonium and caesium isotopes in the particles are indicative of their reactor origin. The Cs-137 activity of the particles amounts to 29,200 kBq/particle, which is higher than the corresponding activities of the fuel particles that formed as a result of the accident at the Chernobyl NPP, All the particles have been divided into two major groups according to the Cs-137/Cs-134 ratio: in the first group, the Cs-137/Cs-134 ratio is more than or equal to 3000, and in the second the Cs-137/Cs-134 ratio is less than or equal to 1000. The particles of the first and the second groups were preliminarily estimated to be formed 30 and 20 years ago, which suggests that there must have been at least two accidents at the MCC reactors, with part of the fuel released into the Yenisei River. (C) 2001 Elsevier Science Ltd. All rights reserved.

WOS
Держатели документа:
RAS, SB, Inst Biophys, Krasnoyarsk 660036, Russia
RAS, Vernadsky Inst Geochem & Analyt Chem, Moscow 117975, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bolsunovsky, A.Y.; Tcherkezian, V.O.

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20.

577.34
И 73


    Интенсивность накопления урана-238 представителями разных экологических уровней экосистемы р. Енисей [Текст] / Сибирское Отделение Российской академии наук, Институт биофизики СО РАН ; Институт биофизики СО РАН // Вестник Томского государственного университета. Биология. - 2016. - № 2 (34) . - С. 161-171DOI 10.17223/19988591/34/11
   Перевод заглавия: Accumulation of uranium-238 by representatives of different ecological levels in the Yenisei River ecosystem

УДК

577.34

597.5

Кл.слова (ненормированные):
коэффициент накопления -- трофический уровень -- Philolimnogammarus viridis -- Fointinalis antipyretica -- Thymallus arcticus -- Esox lucius)
Аннотация: В результате многолетних исследований (2010-2013) получены данные по накоплению урана-238 в гидробионтах разных трофических уровней экосистемы р. Енисей. Пробы водного мха (Fointinalis antipyretica), зообентоса (Philolimnogammarus viridis и Ph. Cyaneus), сибирского хариуса (Thymallus arcticus) и щуки (Esox lucius) отбирали в районе ранее зарегистрированного повышенного содержания урана в воде р. Енисей (вблизи радиоактивных сбросов Горно-химического комбината Росатома). Показано, что уран способен эффективно накапливаться из воды в биомассе всех исследованных гидробионтов. Максимальные коэффициенты накопления (КН) урана получены для водного мха, что многократно превышает КН урана для зообентоса и мышечной ткани рыб. Средние значения КН урана для зообентоса статистически значимо превышают КН в мышцах рыб за весь период наблюдения. Не выявлено статистически значимых отличий в накоплении урана рыбами разного трофического уровня (хариус и щука)
The aim of the research was a comparative evaluation of the intensity of uranium-238 accumulation in the biomass of aquatic organisms, occupying different trophic levels in the ecosystem of the Yenisei river. Previously, uranium-238 at concentrations higher than the background ones was detected in water and sediment samples of the Yenisei River collected close to the discharge site of one of the Rosatom facilities (the Mining-and-Chemical Combine). However, radioecological studies of the Yenisei River ecosystem have not focused on uranium isotopes in aquatic organisms so far. The toxic effects of uranium on living organisms are known to be based on its both radioactive and chemical properties. We conducted a study on accumulation of uranium-238 in aquatic organisms at different trophic levels in the Yenisei River ecosystem between 2010 and 2013. We collected samples of aquatic moss (Fointinalis antipyretica), zoobenthos (Philolimnogammarus viridis and Ph. cyaneus), arctic grayling (Thymallus arcticus), and pike (Esox lucius) from the Yenisei region at a distance of 85-90 km downstream of Krasnoyarsk (5-10 km downstream of the radioactive discharge of the Mining-and-Chemical Combine). Data on samples are shown in Table 1. We determined uranium concentration in the samples of aquatic organisms by neutron activation analysis, in water - by ICP-MS (Table 2). The study shows that uranium can be effectively concentrated from water and accumulate in the biomass of all aquatic organisms used in experiments. The highest uranium concentration factors (CFs) were obtained for aquatic moss, and they were several times higher than the uranium CFs for zoobenthos and fish muscles. Based on the uranium concentration from water, all aquatic organisms of the Yenisei River used in this study can be ranked as follows: aquatic moss > gammarids > grayling = pike. No statistically significant difference has been found between uranium accumulation by fish of different trophic levels (Arctic grayling and pike). The uranium CFs obtained in this study is comparable with the literature data on the CFs of artificial radionuclides for aquatic moss and fish of the Yenisei River

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Держатели документа:
Институт биофизики Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Болсуновский, Александр Яковлевич; Трофимова, Елена Александровна; Дементьев, Дмитрий Владимирович; Карпов, Антон Дмитриевич; Институт биофизики Сибирского отделения Российской Академии наук (Красноярск)

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