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The effect of radionuclide and heavy metal contamination of the Yenisei River on cytogenetics of aquatic plant Elodea canadensis / A. Bolsunovsky [et al.] // Radioprotection. - 2009. - Vol. 44, Is. 5. - P83-88, DOI 10.1051/radiopro/20095021 . - ISSN 0033-8451
Аннотация: The study was done to determine concentrations of radionuclides and heavy metals and to evaluate the frequency of chromosomal aberrations in samples of Elodea canadensis, a submerged plant, collected in different parts of the Yenisei River. Samples were collected in the area subjected to radioactive impact of theMining-and-Chemical Combine (MCC) at Zheleznogorsk and in the control areas, upstream of the MCC. The investigations showed that Elodea biomass in the area affected by MCC operation contained a long inventory of artificial radionuclides typical of the MCC discharges. Upstream of the MCC, in the control sampling areas, the sediments and the Elodea biomass contained only one artificial radionuclide - 137Cs. Thus, the exposure doses to Elodea shoots and roots upstream of the MCC are small (not more than 8 ?Gy/d) and the main contribution to them is made by natural radionuclides. At the MCC discharge site (the village of Atamanovo) and downstream of it, the total dose rate increases almost an order of magnitude, reaching its maximal values - 72 ?Gy/d for Elodea shoots and 58 ? Gy/d for roots. Cytogenetic investigations of Elodea roots showed that at the MCC discharge site (the village of Atamanovo) and downstream of it the occurrence of chromosomal aberrations in ana-telophase and metaphase cells of Elodea was considerably higher than in the control area. It is highly probable that this simultaneous dramatic increase in the total exposure rate and the occurrence of chromosomal aberrations in Elodea is associated with the radiation factor. It is suggested that Elodea is affected not only by the radiation factor but also by the chemical factor - toxicity of heavy metals. В© 2009 EDP Sciences.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, 660036 Krasnoyarsk, Russian Federation
Siberian Federal University, 79 Svobodnyi Ave., 660041 Krasnoyarsk, Russian Federation
Institute of Forest, Siberian Branch, Russian Academy of Sciences, Akademgorodok, 660036 Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bolsunovsky, A.; Muratova, E.; Sukovaty, A.; Kornilova, M.

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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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First evidence for concentrations of transuranium curium in the Yenisei floodplain ecosystem / A. Ya. Bolsunovsky [et al.] // Doklady Earth Sciences. - 2006. - Vol. 409, Is. 5. - P810-813, DOI 10.1134/S1028334X06050308 . - ISSN 1028-334X
Кл.слова (ненормированные):
actinide -- background level -- floodplain -- fluvial deposit -- radionuclide migration -- river pollution -- soil pollution -- Eurasia -- Krasnoyarsk [Russian Federation] -- Russian Federation -- Yenisei River -- Zheleznogorsk

Scopus
Держатели документа:
RAS, Russian Federation
Institute of Biophysics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
GUP MosNPO Radon, Sed'moi Rostovskii per. 2/14, Moscow, 119121, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bolsunovsky, A.Ya.; Ermakov, A.I.; Sobolev, A.I.; Degermendzhi, A.G.

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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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Experimental investigations of the intensity of phosphorus radionuclide uptake by samples of algobacterial community of the Yenisei River / A. Ya. Bolsunovskij, S. V. Kosinenko // Radiatsionnaya Biologiya. Radioekologiya. - 2001. - Vol. 41, Is. 1. - С. 119-123 . - ISSN 0869-8031
Кл.слова (ненормированные):
phosphorus -- alga -- article -- bacterium -- microbiology -- radiation exposure -- Russian Federation -- water pollution -- Algae -- Bacteria -- Phosphorus Radioisotopes -- Siberia -- Water Microbiology -- Water Pollution, Radioactive -- Algae -- Ecosystems -- Phosphorus -- Radioactivity -- Radioisotopes -- River pollution -- Algobacterial community -- Radioecological concentration -- Yenisei River -- Biological radiation effects
Аннотация: The experiments in which phosphorus radionuclide was added to samples of algobacterial community of the Yenisei River taken near the production area of the Mining-and-Chemical Combine (Zheleznogorsk) made possible determining the uptake rates and coefficients of radionuclide accumulation by microorganisms. Radios between processes of adsorption and accumulation of phosphorus radionuclide by components of water seston (suspended matter) have been determined. The portion of the specific radioactivity of phosphorus adsorbed by unit mass of seston (and algae) has been found to be not more than 7% of the activity accumulated by algal cells.

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.; Kosinenko, S.V.

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Radioactive contamination of populated areas of the Krasnoyarsk krai in the region of location of the Mining-Chemical Combine [Text] / A. Y. Bolsunovskii [et al.] // Radiochemistry. - 1999. - Vol. 41, Is. 6. - P604-609. - Cited References: 6 . - 6. - ISSN 1066-3622

РУБ Chemistry, Analytical + Chemistry, Inorganic & Nuclear

Аннотация: Radionuclide content in soil samples collected from populated areas of the Krasnoyarsk krai in the region of location of the Mining-Chemical Combine (MCC), RF Ministry of Nuclear Power Engineering (Minatom), Zheleznogorsk, is determined. The samples were analyzed in the State Sanitary Epidemiological Inspection Center of the Krasnoyarsk krai (Krasnoyarsk, Russia) and analytical and Radiochemical Laboratory (Spiez, Switzerland). In the soil samples collected from the areas that are not subject to the impact of MCC (due to contaminated water discharge and airborne effluents) the maximal content of the most radiologically significant technogenic radionuclide Cs-137 was found to be 45 Bq/kg, which does not exceed the global level: In flood land it amounts to 631 Bq/kg, and the absolutely maximal content (6507 Bq/kg) was found in the samples collected at a depth of 50-80 cm from the Gorodskoi Isl. near the Yeniseisk town. The Pu-239,Pu-240 content in top horizons of soil outside the MCC impact zone ranges from 0.2 to 0.6 Bq/kg. In the flood areas of populated localities at the Yenisei River the Pu-239,Pu-240 content increases to 3.2 Bq/kg in top horizons and more significantly in deeper horizons. The maximal Pu-239,Pu-240 content (8-10 and 10.6-28.9 Bq/kg determined by the Russian and Swiss Researchers, respectively) is found in the samples collected from Yeniseisk at a depth of 50-80 cm. These results suggest that Pu is supplied from MCC to the flood areas of populated localities with the river water. An increased Pu-239,Pu-240 content was also found in soil samples collected from the free-fall areas of the Atamanovo and Bol'shoi Balchug settlements located near the MCC sanitary zone.

Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Div, Krasnoyarsk, Russia
State Sanit Epidemiol Inspect Ctr Krasnoyarsk Kra, Krasnoyarsk, Russia
GR, LC Lab Spiez, Sekt Sicherheitsfragen Zent Analyt & Radiochem, Spiez, Switzerland : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bolsunovskii, A.Y.; Aturova, V.P.; Burger, M...; Schmid, E...; Astner, M...; Brunner, B...; Degermendzhi, A.G.; Kovalenko, V.V.; Kurkatov, S.V.

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539.1.047:576.356
С 71


    Спектр хромосомных аберраций в корневой меристеме E. Canadensis из районов реки Енисей с разными типами техногенного загрязнения [Текст] / Институт биофизики СО РАН // Экологическая генетика. - 2016. - Том XIV, № 2. - С. 57-66DOI 10.17816/ecogen14257-66
   Перевод заглавия: Types of cytogenetic abnormalities in apical root meristem of Elodea сanadensis from Yenisei River areas with different types of anthropogenic pollution

УДК

539.1.047:576.356

Рубрики:
Хромосомные аберрации
Кл.слова (ненормированные):
генотоксичность -- аномалии митоза -- элодея канадская -- мосты -- агглютинация -- фрагментация хромосом
Аннотация: Показано изменение спектра хромосомных аномалий в корневой меристеме Elodea canadensis Michx. (элодея канадская), произрастающей в районах с разными типами техногенного загрязнения (радиационного и химического) донных отложений реки Енисей. В пробах элодеи, собранной в зоне радиоактивного загрязнения реки сбросами Горно-химического комбината Росатома (г. Железногорск), преобладающим типом аномалий были хромосомные аберрации (мосты, агглютинация, фрагментация хромосом), а также множественные аномалии в одной клетке. В пробах элодеи из районов реки Енисей с нерадиоактивным (химическим) загрязнением донных отложений предприятиями г. Красноярска преобладали аномалии, связанные с нарушением митотического веретена деления клетки.
The spectrum of cytogenetic abnormalities in the apical root meristem of Elodea сanadensis Michx. (elodea) from the Yenisei River was studied depending on the type of anthropogenic pollution. We compared elodea samples from areas with radiation-contaminated sediments (area affected by Rosatom Mining and Chemical Combine, MCC, Zheleznogorsk) and areas with chemical pollution (Krasnoyarsk). Materials and methods. The apical root meristem of elodea was fixed in acetic alcohol (96 % ethanol and glacial acetic acid, 3 : 1) and stained with 1 % aceto-orcein. The cytogenetic analysis of metaphase and ana-telophase elodea cells was carried out with temporal squashed preparations using an Olympus CX31 microscope. Results. At metaphase stage, the predominant types of abnormalities in elodea cells were disoriented chromosomes (up to 9 % of total metaphase cells) and chromosome agglutination (6 %). In the area affected by the MCC an increased content of ring chromosomes in elodea cells was detected, but in terms of frequency of their occurrence no significant differences were revealed between samples from areas with different types of pollution. Among abnormalities at ana-telophase stage, bridges (to 20% of dividing cells) and disoriented chromosomes (up to 8%) dominated. The following abnormalities were also detected: multipolar and asymmetrical mitoses, agglutination and cells with multiple chromosome abnormalities. It was shown that in areas with the highest content of 137Cs in bottom sediments the frequency of cells with bridges and multiple chromosome abnormalities significantly increased as compared to samples from other areas. Conclusion. In the radioactive contamination area of the Yenisei River the spectrum of abnormalities was dominated by chromosome aberrations (bridges, agglutination, chromosome fragmentation) and multiple abnormalities in one and the same cell. In areas with non-radioactive (chemical) contamination of sediments, mitotic spindle irregularities prevailed

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

Доп.точки доступа:
Медведева, Марина Юрьевна; Болсуновский, Александр Яковлевич; Институт биофизики Сибирского отделения Российской Академии наук (Красноярск)

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577.34
С 57


    Содержание техногенных радионуклидов в промысловых рыбах р. Енисей в период работы реакторного производства на Горно-химическом комбинате и после его остановки [Текст] : статья / Татьяна Анатольевна Зотина [и др.] // Вопросы радиационной безопасности. - 2016. - № 2. - С. 28-35 . - ISSN 1816-9643
   Перевод заглавия: Concentration of Artificial Radionuclides in Commercial Fish Species of the Yenisei River During the Operation and After the Shutdown of the Nuclear Power Plant at the Mining-and-Chemical Combine

УДК

577.34

574.524

597.5

Кл.слова (ненормированные):
хариус -- Елец -- щука -- Thymallus arcticus -- Leuciscus leuciscus baicalensis -- Esox lucius -- grayling -- dace -- pike
Аннотация: Река Енисей загрязнена техногенными радионуклидами в результате производства оружейного плутония на Горно-химическом комбинате (ГХК) в г. Железногорске (Россия) в течение более 50 лет. Последнее реакторное производство на ГХК было остановлено в 2010 г. В данной работе представлены данные по накоплению техногенных радионуклидов промысловыми рыбами (щукой, Esox lucius; хариусом, Thymallus arcticus, и ельцом, Leuciscus leuciscus baicalensis), обитающими на радиоактивно загрязненном участке р.Енисей в 2005-2014 гг. Из числа техногенных радионуклидов, которые регистрировались в мышцах рыб во время работы последнего ядерного реактора (32P, 60Co, 65Zn, 137Cs), только 137Cs регистрировался в течение четырех лет после остановки реакторного производства на ГХК. Содержание 137Cs в мышцах рыб было значительно ниже установленных в Российской Федерации санитарных норм. Содержание 137Cs в мышцах хищных рыб было выше, чем в мышцах мирных. Содержание 137Cs в ихтиофауне р. Енисей не снизилось после остановки последнего реакторного производства на ГХК, в то время как содержание радионуклидов с наведенной активностью снизилось значительно. Это можно объяснить неизменным потоком 137Cs в р. Енисей со сбросами радиохимического производства ГХК и депозитами 137Cs в донных отложениях. Можно ожидать, что концентрация 137Cs в мышцах рыб не снизится в ближайшие десятилетия.
The Yenisei River is contaminated with artificial radionuclides due to the weapons-grade plutonium production at the Mining-and-Chemical Combine (MCC) at Zheleznogorsk (Russia) for more than 50 years. The last reactor plant at the MCC was shut down in 2010. The research presents the data on accumulation of artificial radionuclides in wild fish (pike, Esox lucius; grayling, Thymallus arcticus; and dace, Leuciscus leuciscus baicalensis) inhabiting the radioactively contaminated part of the Yenisei River between 2005 and 2014. Among artificial radionuclides that were detected in fish muscles when the last nuclear reactor plant was operating (32P, 60Co, 65Zn, 137Cs), only 137Cs was recorded four years after the shutdown of the nuclear power plant at the MCC. The concentrations of 137Cs in fish muscles were considerably below the sanitary norms for this radionuclide in the Russian Federation. Piscivorous fish species accumulated higher concentration of 137Cs in their muscles than non-predatory species. Concentration of 137Cs in fish fauna of the Yenisei River did not decrease after the shutdown of the last nuclear power plant at the MCC, while the concentration of radionuclides with induced activity decreased considerably. This can be explained by the constant inflow of 137Cs into the Yenisei River due to discharges from the radiochemical plant at the MCC and the deposits of 137Cs in the bottom sediments. We can expect that the concentration of 137Cs in fish muscles will not decrease in the next few decades.

РИНЦ
Держатели документа:
Институт биофизики СО РАН

Доп.точки доступа:
Зотина, Татьяна Анатольевна; Zotina T.A.; Трофимова, Елена Александровна; Trofimova E. A.; Дементьев, Дмитрий Владимирович; Dementyev D. V.; Карпов, Антон Дмитриевич; Karpov A.D.; Паньков, Егор Викторович; Pankov E.V.; Болсуновский, Александр Яковлевич; Bolsunovsky A.Y.

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Concentrations of metals in water of the Yenisei River between Krasnoyarsk and the Angara River outfall in 2010-2015 / D. V. Dementyev [и др.] // Bull. Tomsk Polytech. Univ. Geo Assets Eng. - 2017. - Vol. 328, Is. 3. - С. 54-63 . - ISSN 2500-1019
Кл.слова (ненормированные):
Heavy metals -- Microelements -- Screening -- The Yenisei River -- Water -- Water quality
Аннотация: The relevance of the study is determined by the necessity to obtain the data on concentrations of chemical elements in water of the Yenisei River, which is continuously affected by human activities. The aim of the study is to determine concentrations of such chemical elements as Na, K, Ca, Mg, Zn, Cu, Ba, Al, Mn, U, Mo, Cr, Ni, As, Co, Sr, Fe, Pb, Cd, and Bi in water of the Yenisei River between the city of Krasnoyarsk and the outfall of the Angara River. The methods used in the study. Total contents of the elements were determined by inductively coupled plasma mass spectrometry, using an Agilent 7500a instrument. The results. The study showed the changes in average concentrations of 20 chemical elements in water of the Yenisei River between the city of Krasnoyarsk and the outfall of the Angara River (the village Strelka), for 2010-2015. Comparison of the data obtained with the levels of maximum permissible concentrations showed that the examined part of the Yenisei River contained the increased concentrations of Fe, Cu, Mn, Al, and Zn. For the study period, the magnitudes of average concentrations of Fe reached 1...2 maximum permissible concentrations (MPC) and Cu concentrations reached 1...5 MPC The average concentrations of Mn amounted to 1...3 MPC in the parts of the river over 90 km downstream of Krasnoyarsk (at the villages Atamanovo and Strelka). Cu, Fe, and Zn concentrations tend to increase somewhat in the parts of the river over 90 km downstream of Krasnoyarsk, which may be caused by the influence of the industrial complex of the town Zheleznogorsk and the outfall of the Kan River, with the large industrial facilities located along its banks, in Zelenogorsk, in particular.

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WOS
Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences FRC KSC SB RAS, 50/50 Akademgorodok, Krasnoyarsk, Russian Federation
ICCT SB RAS FRC KSC SB RAS, 50/24 Akademgorodok, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Dementyev, D. V.; Bolsunovsky, A. Y.; Borisov, R. V.; Alexandrova, Y. V.

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10.

Types of Cytogenetic Abnormalities in the Apical Root Meristem of Elodea canadensis from the Yenisei River Areas with Different Types of Anthropogenic Pollution / M. Y. Medvedeva, A. Y. Bolsunovsky // Russ. J. Genet. Appl. Res. - 2018. - Vol. 8, Is. 2. - P115-123, DOI 10.1134/S2079059718020089 . - ISSN 2079-0597
Кл.слова (ненормированные):
anthropogenic contamination of bottom sediments -- Elodea canadensis -- genotoxicity -- mitotic abnormalities -- Yenisei River
Аннотация: The change in the spectrum of chromosomal abnormalities in the apical root meristem of Elodea canadensis Michx. (elodea) growing in areas with different types of anthropogenic (radioactive and chemical) pollution of the bottom sediments of the Yenisei River is shown. In the samples of elodea collected in the zone of radioactive contamination of the river by discharges of the Rosatom Mining and Chemical Combine (MCC, Zheleznogorsk), the predominant type of abnormalities consist of chromosomal aberrations (bridges, stickiness, chromosomal fragmentation), as well as multiple abnormalities in one cell. The elodea samples from the areas of the Yenisei River with nonradioactive (chemical) contamination of bottom sediments by the enterprises of the city of Krasnoyarsk are predominantly characterized by abnormalities associated with the disturbance of the mitotic spindle of cell division. © 2018, Pleiades Publishing, Ltd.

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Смотреть статью
Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Medvedeva, M. Y.; Bolsunovsky, A. Y.

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11.

A comparative study of biota and sediments as monitors of plutonium in the Yenisei River (Siberia, Russia) / T. A. Zotina, M. S. Melgunov, D. V. Dementyev [et al.] // J. Environ. Radioact. - 2021. - Vol. 237. - Ст. 106723, DOI 10.1016/j.jenvrad.2021.106723. - Cited References:50. - The authors are grateful to the staff of the Radioecology Laboratory (Institute of Biophysics SB RAS, Krasnoyarsk) and the head of the Laboratory, Dr. Alexander Bolsunovsky, for their help in sample collection and processing, to Irina Makarova (Institute of Geology and Mineralogy SB RAS, Novosibirsk) for radiochemical separation of plutonium, and to Elena Krasova for linguistic check and improvements. We also appreciate comments of anonymous reviewers, which allowed us to improve our manuscript. The research was supported by the grants of Russian Foundation for Basic Research, Government of the Krasnoyarsk Territory, and Krasnoyarsk Regional Scientific Foundation No. 20-44-240004 and 18-44-240003, and the State Assignment for Fundamental Research to IBP SB RAS and IGM SB RAS. . - ISSN 0265-931X. - ISSN 1879-1700

РУБ Environmental Sciences
Рубрики:
PU-240/PU-239 ATOM RATIO
ARTIFICIAL RADIONUCLIDES
WATER
Кл.слова (ненормированные):
Americium -- Cesium -- Submerged macrophyte -- Zoobenthos
Аннотация: MOX-fuel production and spent nuclear fuel reprocessing started recently at the Mining-and-Chemical Combine (MCC, Zheleznogorsk, Russia) have caused an increase in controlled releases of plutonium to the Yenisei River. In this study, we analyzed time-dependent trends of plutonium (239,240Pu and 238Pu) in biota and bottom sediments of the Yenisei during 2008-2019, to estimate comparatively the potential of abundant representatives of biota as bio-monitors of contamination of the Yenisei by plutonium. Gamma-emitting radionuclides (40 K; 60Co; 137Cs; 152Eu; 241Am) were measured in environmental samples of the Yenisei as well. Samples of bottom sediments, water moss (Fontinalis antipyretica), shining pondweed (Potamogeton lucens), caddisfly larvae with casings (Apatania crymophila), and amphipods (Eulimnogammarus viridis and Palaseopsis cancelloides) were collected downstream and upstream of the radioactive discharge site. Environmental samples of the Yenisei collected downstream of the radioactive discharge site differed considerably in activity concentrations of plutonium but were similar in time-dependent trends of plutonium, reflecting the trends of annual discharges of plutonium. In 2018, the year of a sharp increase in controlled discharge of plutonium, the concentration of 239,240Pu in water moss (26 Bq kg-1 d.w.) was higher than in sediments (14 Bq kg-1 d.w.). In other years, the highest activity concentration of 2391,240Pu was observed in bottom sediments. In view of the higher magnitude of increase in plutonium concentration, water moss and shining pondweed can be considered as more sensitive indicators of increased fresh releases of plutonium than bottom sediments. Taking into account the food-related mechanism of plutonium uptake by amphipods, this representative of biota can be regarded as a sensitive monitor of bioavailable plutonium in the Yenisei.

WOS
Держатели документа:
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Inst Biophys,Fed Res Ctr, 50-50 Akademgorodok, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Fundamental Biol & Biotechnol, 79 Svobodny Av, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Siberian Branch, Inst Geol & Mineral, 3 Academician Koptyug Av, Novosibirsk 630090, Russia.

Доп.точки доступа:
Zotina, Tatiana A.; Melgunov, Michail S.; Dementyev, D. V.; Miroshnichenko, L. V.; Alexandrova, Y. V.; Russian Foundation for Basic Research, Government of the Krasnoyarsk Territory; Krasnoyarsk Regional Scientific Foundation [20-44-240004, 18-44-240003]; State Assignment for Fundamental Research

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