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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Dementyev, Dmitry, Bolsunovsky, Alexander
Заглавие : A long-term study of radionuclide concentrations in mushrooms in the 30-km zone around the Mining-and-Chemical Combine (Russia)
Колич.характеристики :10 с
Место публикации : Isot. Environ. Health Stud.: TAYLOR & FRANCIS LTD. - ISSN 1025-6016, DOI 10.1080/10256016.2020.1718124. - ISSN 1477-2639(eISSN)
Примечания : Cited References:25
Предметные рубрики: CS-137
FOREST
RADIOCESIUM
FUNGI
ACCUMULATION
ACCIDENT
Аннотация: Cs-137 concentrations were measured in mushrooms in an area affected by radioactive discharges of the Mining-and-Chemical Combine (MCC) (Rosatom, Russia) in 2002-2017. The sources of radionuclides in the study sites were global fallouts and waterborne and airborne radioactive discharges of the MCC. The mushroom species Suillus granulatus and S. luteus showed the highest Cs-137 concentrations (140-7100 Bq kg(-1)) for this area. Over the entire monitoring period, no significant change in Cs-137 concentration was observed in the Suillus spp. samples collected from the sites with the aerial deposition of radionuclides. In the floodplain site with the radionuclide deposition from water and air, a significant decrease in the average Cs-137 concentration was observed in the period between 2004 and 2017: a three-fold decrease in Suillus spp. and a nine-fold decrease in Lactarius deliciosus. The effective half-lives of Cs-137 in fruiting bodies of the mushrooms L. deliciosus and Suillus spp. in this site were 3.6 +/- 0.6 and 9.2 +/- 2.7 years, respectively.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zotina T. A., Anishchenko, O., V, Trofimova E. A., Dementiev, D., V
Заглавие : Comparative Assessment of the Content of Transition Metals (Cu, Zn, Mn, Pb, and Cd) and Radiocesium (Cs-137) in Pike (Esox lucius) and Burbot (Lota lota) of the Yenisei River
Колич.характеристики :9 с
Коллективы : Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [18-44-240003]; Government of Krasnoyarsk krai; Krasnoyarsk Regional Fund for Support of Scientific and Technical Activity [20-44-240004]
Место публикации : Contemp. Probl. Ecol.: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2022. - Vol. 15, Is. 1. - С. 91-99. - ISSN 1995-4255, DOI 10.1134/S1995425522010115. - ISSN 1995-4263(eISSN)
Примечания : Cited References:36. - This work was supported by the Russian Foundation for Basic Research, grant no. 18-44-240003, and the Government of Krasnoyarsk krai, together with the Krasnoyarsk Regional Fund for Support of Scientific and Technical Activity, grant no. 20-44-240004.
Предметные рубрики: FRESH-WATER FISH
NORTHERN PIKE
HEAVY-METALS
BRAMA L.
FOOD-WEB
SIZE
Аннотация: The trophic position of fish is one of the most important factors controlling the accumulation of potentially toxic elements and compounds in fish tissues, primarily via the spectrum of fish nutrition. In this study, the content of potentially toxic transition metals (Cu, Zn, Mn, Pb, and Cd) and radiocesium (Cs-137) in the edible tissues (muscles and liver) of two representatives of the fish-eating ichthyofauna of the Yenisei River, northern pike (Esox lucius) and burbot (Lota lota), have been comparatively studied relatively to the size of the fish. A significant decrease in the content of radiocesium and zinc in the muscles of pike and zinc in the liver of pike with an increase in body size has been recorded in juvenile pikes with a body weight (W) of less than 0.35 kg. For larger sexually mature pikes, no significant size dependences of the accumulation of metals in tissues are found. A positive correlation is found between the content of Cs-137, Cu, Zn, and Mn in muscles and the size of burbot in the W range from 0.42 to 1.62 kg. The tissues of burbots and pikes of the same size significantly (p 0.05) differ in the concentration of metals in their tissues: concentrations of Zn and Mn are 1.6-2.2 times higher in the muscle of burbot; the concentration of Pb is 1.8 times higher in muscle of pike; Cu is twice as high in the liver of burbot; and Zn and Mn are 4.7 and 1.6 times higher in the liver of pike, respectively. These differences may be due to the different food spectra of pike and burbot. Concentrations of Cu, Zn, and Mn in the liver of pike are 3-7 times higher than in muscle; the concentration of Cu in the liver of burbot is 5 times higher than in muscle. Pb and Cd tend to be higher in liver than muscle for both fish species. Despite the revealed size dependences, the concentrations of potentially toxic metals and radiocesium in the muscles and liver of fish are below the permissible concentrations for food. These results can be used to assess environmental risks for the population consuming fish, as well as to plan for the long-term environmental monitoring of rivers using representatives of piscivorous fish.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Pilla, Rachel M., Mette, Elizabeth M., Williamson, Craig E., Adamovich, Boris V., Adrian, Rita, Anneville, Orlane, Balseiro, Esteban, Ban, Syuhei, Chandra, Sudeep, Colom-Montero, William, Devlin, Shawn P., Dix, Margaret A., Dokulil, Martin T., Feldsine, Natalie A., Feuchtmayr, Heidrun, Fogarty, Natalie K., Gaiser, Evelyn E., Girdner, Scott F., Gonzalez, Maria J., Hambright, K. David, Hamilton, David P., Havens, Karl, Hessen, Dag O., Hetzenauer, Harald, Higgins, Scott N., Huttula, Timo H., Huuskonen, Hannu, Isles, Peter D. F., Joehnk, Klaus D., Keller, Wendel Bill, Klug, Jen, Knoll, Lesley B., Korhonen, Johanna, Korovchinsky, Nikolai M., Koster, Oliver, Kraemer, Benjamin M., Leavitt, Peter R., Leoni, Barbara, Lepori, Fabio, Lepskaya, Ekaterina V., Lottig, Noah R., Luger, Martin S., Maberly, Stephen C., MacIntyre, Sally, McBride, Chris, McIntyre, Peter, Melles, Stephanie J., Modenutti, Beatriz, Muller-Navarra L., Pacholski, Laura, Paterson, Andrew M., Pierson, Don C., Pislegina, Helen V., Plisnier, Pierre-Denis, Richardson, David C., Rimmer, Alon, Rogora, Michela, Rogozin, Denis Y., Rusak, James A., Rusanovskaya, Olga O., Sadro, Steve, Salmaso, Nico, Saros, Jasmine E., Sarvala, Jouko, Saulnier-Talbot, Emilie, Schindler, Daniel E., Shimaraeva, Svetlana V., Silow, Eugene A., Sitoki, Lewis M., Sommaruga, Ruben, Straile, Dietmar, Strock, Kristin E., Swain, Hilary, Tallant, Jason M., Thiery, Wim, Timofeyev, Maxim A., Tolomeev, Alexander P., Tominaga, Koji, Vanni, Michael J., Verburg, Piet, Vinebrooke, Rolf D., Wanzenbock, Josef, Weathers, Kathleen, Weyhenmeyer, Gesa A., Zadereev, Egor S., Zhukova, Tatyana V.
Заглавие : Global data set of long-term summertime vertical temperature profiles in 153 lakes
Колич.характеристики :12 с
Коллективы : Belarus Republican Foundation for Fundamental Research; AnaEE-France; SILA (Syndicat Mixte du Lac d'Annecy); Castle Lake Environmental Research and Education Program, University of Nevada at Reno; EC project "Response of European Freshwater Lakes [ENV4-CT97-0453]; EC-project "Climate Impacts on European Lakes" [EVK1-CT-2002-00121]; Austrian Climate and Energy Fund [K09ACK00046]; NSFNational Science Foundation (NSF) [DEB 1950170]; Crater Lake National Park Long-Term Limnological Monitoring Program; Ministry of Business, Innovation and Employment: Enhancing the Health and Resilience of New Zealand lakes [UOWX1503]; National Capital Authority; ACT, Australia [GB/NERC/BAS/AEDC/00063]; Belgian Science Policy OfficeBelgian Federal Science Policy Office; North Temperate Lakes LTER NTL-LTER [1440297]; NSERC CanadaNatural Sciences and Engineering Research Council of Canada (NSERC); Canada Research Chairs, Canada Foundation for InnovationCanada Foundation for InnovationCanada Research Chairs; University of Regina; Commissione Internazionale per la protezione delle acque italo-svizzere; Natural Environment Research CouncilUK Research & Innovation (UKRI)Natural Environment Research Council (NERC) [NE/R016429/1]; U.S. NSF Arctic LTER [DEB1637459, LTER_EU_IT_008]; Canton of Zurich [18-44-06201, 20-64-46003]; Russian Ministry of Higher Education and Research [FZZE-2020-0026, FZZE-2020-0023]; National Science Foundation Long Term Research in Environmental Biology program [DEB-1242626]; National Park Service (the Inventory and Monitoring Program); Acadia National Park monitoring program; Gordon and Betty Moore FoundationGordon and Betty Moore Foundation; Andrew Mellon Foundation; US National Science FoundationNational Science Foundation (NSF) [9318452, 9726877, 0235755, 0743192, 1255159]; Institut fur Seenforschung, Langenargen (Internationale Gewasserschutzkommission fur den Bodensee -IGKB); University of Michigan Biological StationUniversity of Michigan System; Belgian Science Policy Office (BELSPO)Belgian Federal Science Policy Office [CD/AR/02 A]; Waikato Regional Council; NIWA; Swedish Research CouncilSwedish Research CouncilEuropean Commission [2017-00635, NSF DEB 1754276]; Lacawac Sanctuary and Biological Field Station; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [19-04-00362 A, 19-05-00428]
Место публикации : Sci. Data: NATURE PORTFOLIO, 2021. - Vol. 8, Is. 1. - Ст.200. - ISSN 2052-4463(eISSN), DOI 10.1038/s41597-021-00983-y
Примечания : Cited References:45. - This work was conceived at the Global Lake Ecological Observatory Network (GLEON), and benefited from continued participation and travel support from GLEON. This manuscript is dedicated to the late Karl Havens and Alon Rimmer, who provided data for this manuscript. Funding and support for this work came from the following sources: the Belarus Republican Foundation for Fundamental Research; the IGB Long-term Ecological Research Programme; SOERE OLA, AnaEE-France, INRA Thonon les Bains, SILA (Syndicat Mixte du Lac d'Annecy), CISALB (Comite Intercommunautaire pour l'Assainissement du Lac du Bourget), and CIPEL (Commission Internationale pour la protection des eaux du Leman); Shiga Prefectural Fisheries Experiment Station (SPFES); Castle Lake Environmental Research and Education Program, University of Nevada at Reno and UC Davis; the Flathead Lake Monitoring program funded through a consortium of state and private funds, and thank the generous citizens of Flathead Lake for their continued support of lake monitoring; the Institute for water ecology, fish biology and lake research and the Institute for Limnology of the Austrian Academy of Sciences (until 2011), and acknowledge the sampling efforts by many individuals over the long period of investigation, especially H. Gassner, M. Luger, H. Ficker, and R. Kurmayer; the EC project "Response of European Freshwater Lakes to Environmental and Climatic Change" (REFLECT, ENV4-CT97-0453), the EC-project "Climate Impacts on European Lakes" (CLIME, EVK1-CT-2002-00121), the project "Risk Analysis of Direct and Indirect Climate effects on deep Austrian Lake Ecosystems" (RADICAL) funded by the Austrian Climate and Energy Fund (No. K09ACK00046) -Austrian Climate Research Programme (ACRP, http://www.klimafonds.gv.at); O. Garcia and E. Bocel for data analysis and management; D. Cabrera, M.W. Dix, G. Ochaeta, S. van Tuylen, M. Orozco, E. Symonds for sampling efforts; NSF grant No. 0947096 to E. Rejmankova, U.S. PeaceCorps and Ministerio de Ambiente y Recursos Naturales of Guatemala; H. Swain, L. Battoe, K. Main, N. Deyrup (Archbold Biological Station), the Florida Lakewatch program, E. Gaiser (Florida International University); the Crater Lake National Park Long-Term Limnological Monitoring Program; the City of Tulsa (R. West and A. Johnson), the Grand River Dam Authority (R. M. Zamor), W.M. Matthews and US ACE (T. Clyde), and the Oklahoma Water Resources Board; Bay of Plenty Regional Council; Ministry of Business, Innovation and Employment: Enhancing the Health and Resilience of New Zealand lakes (UOWX1503); the field and laboratory staff of the South Florida Water Management District for collecting and analyzing the samples; the Norwegian Water Resources and Energy Directorate (NVE), by courtesy of A. S. Kvambekk; the Lake Champlain Long-term Monitoring program (VT DEC and NY DEC); the National Capital Authority, ACT, Australia; Ontario Ministry of Environment, Conservation and Parks; FirstLight Power Resources and Friends of the Lake, especially G. Bollard and R. White; the Finnish Environment Institute SYKE database (Hertta) and S. Mitikka; N. Spinelli and the Lake Wallenpaupack Watershed Management District; Lakes Heywood, Moss, and Sombre: Long-Term Monitoring of Signy Lake Chemistry by BAS 1963-2004. Ref: GB/NERC/BAS/AEDC/00063, and dataset supplied by the Polar Data Centre under Open Government License (c) NERC-BAS, Lake Nkugute: Beadle (1966), CLANIMAE project funded by the Belgian Science Policy Office; Dr. L.; Garibaldi; NSF awards #1418698 and North Temperate Lakes LTER NTL-LTER #1440297; NSERC Canada, Canada Research Chairs, Canada Foundation for Innovation, Province of Saskatchewan, University of Regina, and Queen's University Belfast; Commissione Internazionale per la protezione delle acque italo-svizzere, Ufficio della protezione delle acque e dell'approvvigionamento idrico del Canton Ticino; KamchatNIRO scientists; Natural Environment Research Council award number NE/R016429/1 as part of the UK-SCaPE programme delivering National Capability; U.S. NSF Arctic LTER DEB1637459; Belgian Science Policy (Choltic, Climlake, Climfish); Ontario Ministry of Natural Resources' Harkness Laboratory of Fisheries Research, especially T. Middel; Max-Planck-Institute for Limnology Plon; staff at Erken Laboratory; Mohonk Preserve and D. Smiley; Lake Sunapee Protective Association; KLL database; International Commission for the Protection of Swiss-Italian Waters (CIPAIS) and the LTER (Long Term Ecological Research) Italian network, site "Southern Alpine lakes", LTER_EU_IT_008; staff and students at MECP's Dorset Environmental Science Centre; the LTER (Long-Term Ecological Research) Italian network, site "Southern Alpine lakes", IT08-005-A (http://www.lteritalia.it), with the support of the ARPA Veneto; Prof. L. Chapman, McGill University (Montreal, Quebec, Canada); Amt fur Abfall, Wasser, Energie und Luft (AWEL) of the Canton of Zurich; grants of RSCF project #18-44-06201 and #20-64-46003, of Russian Ministry of Higher Education and Research (projects. FZZE-2020-0026;. FZZE-2020-0023), and of Foundation for support of applied ecological studies "Lake Baikal" (https://baikalfoundation.ru/project/tochka-1/); National Science Foundation Long Term Research in Environmental Biology program (DEB-1242626); the National Park Service (the Inventory and Monitoring Program as well as the Air Resources Division) and Acadia National Park and the Acadia National Park monitoring program; Gordon and Betty Moore Foundation, the Andrew Mellon Foundation, the US National Science Foundation and the Bristol Bay salmon processors; J. Franzoi, G. Larsen, and S. Morales, and the LTSER platform Tyrolean Alps, which belongs to the national and international long-term ecological research network (LTER-Austria, LTER Europe and ILTER); Institut fur Seenforschung, Langenargen (Internationale Gewasserschutzkommission fur den Bodensee -IGKB); University of Michigan Biological Station (A. Schubel) and Cooperative Institute for Great Lakes Research (R. Miller); the Belgian Science Policy Office (BELSPO) is acknowledged for supporting research on Lake Kivu through the research project EAGLES (CD/AR/02 A); US National Science Foundation awards 9318452, 9726877, 0235755, 0743192 and 1255159; West Coast Regional Council, the Bay of Plenty Regional Council, and Waikato Regional Council, and NIWA; D. Schindler (funding and data access) and B. Parker (logistical support and data management); Swedish Infrastructure for Ecosystem Science (SITES) and the Swedish Research Council under the grant no 2017-00635; NSF DEB 1754276 and NSF DEB 1950170, the Ohio Eminent Scholar in Ecosystem Ecology fund, and Lacawac Sanctuary and Biological Field Station; Russian Foundation for Basic Research, grant. 19-04-00362 A and. 19-05-00428.
Предметные рубрики: CLIMATE-CHANGE
THERMAL STRATIFICATION
OXYGEN DEPLETION
FISH
Аннотация: Climate change and other anthropogenic stressors have led to long-term changes in the thermal structure, including surface temperatures, deepwater temperatures, and vertical thermal gradients, in many lakes around the world. Though many studies highlight warming of surface water temperatures in lakes worldwide, less is known about long-term trends in full vertical thermal structure and deepwater temperatures, which have been changing less consistently in both direction and magnitude. Here, we present a globally-expansive data set of summertime in-situ vertical temperature profiles from 153 lakes, with one time series beginning as early as 1894. We also compiled lake geographic, morphometric, and water quality variables that can influence vertical thermal structure through a variety of potential mechanisms in these lakes. These long-term time series of vertical temperature profiles and corresponding lake characteristics serve as valuable data to help understand changes and drivers of lake thermal structure in a time of rapid global and ecological change.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Esimbekova E. N., Torgashina I. G., Kalyabina V. P., Kratasyuk V. A.
Заглавие : Enzymatic Biotesting: Scientific Basis and Application
Колич.характеристики :15 с
Коллективы : Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [19-14-50238\19]
Место публикации : Contemp. Probl. Ecol.: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2021. - Vol. 14, Is. 3. - С. 290-304. - ISSN 1995-4255, DOI 10.1134/S1995425521030069. - ISSN 1995-4263(eISSN)
Примечания : Cited References:128. - This study was carried out with financial support from the Russian Foundation for Basic Research, project no. 19-14-50238\19.
Предметные рубрики: ORGANOPHOSPHORUS PESTICIDES
CHRONIC EXPOSURE
BIOSENSOR
Аннотация: The paper provides a review of the current state of research in the field of biotesting, and the problems of environmental studies and ways to solve them are discussed. The basic principles and examples of using enzymes for detecting toxicants in various environmental samples are considered. Based on an analysis of numerous published data, the advantages and limitations, as well as the prospects for using enzymes for performing biotesting tasks, are assessed. A separate section of the review is devoted to bioluminescent enzymatic bioassays developed by the authors and successfully used for environmental monitoring of water, soil, and air. The necessity of developing a battery of enzymatic bioassays is substantiated. It allows one to have the most complete and accurate information about the degree of pollution of environmental objects.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ronzhin N. O., Mogilnaya O. A., Posokhina E. D., Bondar V. S.
Заглавие : Reusable System for Phenol Detection in an Aqueous Medium Based on Nanodiamonds and Extracellular Oxidase from Basidiomycete Neonothopanus nambi
Колич.характеристики :5 с
Место публикации : Dokl. Biochem. Biophys.: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2021. - Vol. 499, Is. 1. - С. 220-224. - ISSN 1607-6729, DOI 10.1134/S1607672921040141. - ISSN 1608-3091(eISSN)
Примечания : Cited References:15
Предметные рубрики: PEROXIDASES
EXPRESSION
Аннотация: A reusable system for phenol determination in an aqueous medium was obtained by adsorption of extracellular oxidase from fungus Neonothopanus nambi onto modified nanodiamonds (MND) synthesized by detonation. It was found that the enzyme strongly binds to MND and exhibits catalytic activity in the reaction of co-oxidation of phenol with 4-aminoantipyrine without the addition of hydrogen peroxide. In the presence of the MND-oxidase complex, a significantly (by an order of magnitude) higher yield of the reaction product is recorded as compared to the yield in the presence of a free enzyme; the mechanism of the revealed effect is discussed. Model experiments have demonstrated the multiple use of the MND-oxidase complex for testing phenol in aqueous samples. The immobilized enzyme exhibits functional activity during long-term (2 months) storage of the MND-oxidase complex at 4 degrees C. The data obtained create the prerequisites for using the created system in environmental monitoring of water pollution with phenol.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ronzhin, Nikita O., Posokhina, Ekaterina D., Mikhlina, Elena, V, Mikhlin, Yuri L., Simunin, Mikhail M., Tarasova, Lyudmila S., Vorobyev, Sergey A., Bondar, Vladimir S., Ryzhkov, Ilya I.
Заглавие : A new composite material based on alumina nanofibers and detonation nanodiamonds: synthesis, characterization, and sensing application
Колич.характеристики :14 с
Коллективы : Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [18-29-19078]
Место публикации : J. Nanopart. Res.: SPRINGER, 2021. - Vol. 23, Is. 9. - Ст.199. - ISSN 1388-0764, DOI 10.1007/s11051-021-05309-y. - ISSN 1572-896X(eISSN)
Примечания : Cited References:57. - This work is partially supported by the Russian Foundation for Basic Research, Project 18-29-19078 (E. V. Mikhlina, M. M. Simunin, I. Ryzhkov).
Предметные рубрики: ELECTROCHEMICAL ENERGY-STORAGE
SELECTIVE DETECTION
PHENOL DETECTION
Аннотация: The development of inexpensive, easy-to-produce, and easy-to-use analytical tools for detection of harmful and toxic substances is a relevant research problem with direct applications in environmental monitoring and protection. In this work, we propose a novel composite material based on alumina nanofibers and detonation nanodiamonds for detection of phenol in aqueous medium. The composite material was obtained by mixing an aqueous suspension of alumina nanofibers with a diameter of 10-15 nm and a length of several microns and a hydrosol of nanodiamonds with an average cluster size of 70 nm. The mechanisms underlying the interaction of these nanomaterials are clarified and the physicochemical properties of the composite are investigated. The SEM and TEM studies show that the obtained composite has a network structure, in which clusters of nanodiamonds (10-20 nm in diameter) are distributed over the surface of nanofibers. Coupling of nanomaterials occurs due to opposite signs of their zeta potentials, which results in electrostatic attraction and subsequent chemical bonding as indicated by the X-ray photoelectron spectroscopy and simultaneous thermal analysis. The bonding apparently occurs between functional groups (mainly carboxyl) on the surface of nanodiamonds and amphoteric hydroxyl groups on the surface of alumina nanofibers. The proposed composite allows an easy-to-perform colorimetric analysis for qualitative and quantitative determination of phenol in aqueous samples with linear response over a wide range of concentrations (0.5-106 mu M). Multiple tests have shown that the composite is reusable and retains its catalytic function for at least 1 year during storage at room temperature.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Babich, Valery V., Darin, Andrey, V, Kalugin, Ivan A., Markovich, Tatyana, I, Zykov, Viktor V., Rogozin, Denis Yu
Заглавие : SEASONAL VARIABILITY OF SEDIMENTATION FLOWS IN SALT MEROMICTIC LAKE SHIRA (KHAKASSIA)
Колич.характеристики :13 с
Коллективы : Ministry of Science and Higher Education of the Russian Federation; RFBRRussian Foundation for Basic Research (RFBR) [21-54-52001, 19-05-50046]
Место публикации : Bull. Tomsk Polytech. Univ.-Geo Assets Eng.: TOMSK POLYTECHNIC UNIV, PUBLISHING HOUSE, 2021. - Vol. 332, Is. 12. - С. 22-34. - ISSN 2500-1019, DOI 10.18799/24131830/2021/12/3178. - ISSN 2413-1830(eISSN)
Примечания : Cited References:29. - The work was carried out on state assignment of IGM SB RAS, supported by the Ministry of Science and Higher Education of the Russian Federation, with partial support of the RFBR - grant 21-54-52001 (setting of traps, sampling) and grant 19-05-50046 (micro-XRF-SR).
Предметные рубрики: CENTRAL TIBETAN PLATEAU
NAM-CO
VARVE
Аннотация: The relevance of the work is caused by the need to study seasonal variations in the volume and composition of sedimentation flows in modern lakes and their relationship with weather and climatic factors, which can serve as a basis for reconstructing climatic changes in the past. The main aim: to assess seasonal changes in the mass, velocity and chemical composition of sedimentary material entering Lake Shira on the basis of generalization and analysis of the results of multiyear annual monitoring of the material of sedimentation traps incubated in the lake. Object of the study was the drainless, slightly saline meromictic lake Shira, located in the steppe intermontane depression on the territory of the Republic of Khakassia. Methods: long-term seasonal monitoring of sedimentary material forming bottom sediments using sedimentation traps incubated in the lake; study of the obtained material for a wide range of parameters (biological, hydrochemical, lithological-geochemical, granulometric, etc.) by various conventional methods, including the method of X-ray fluorescence microanalysis on synchrotron radiation beams (XRF-SI), adapted for the study of bottom samples; computer statistical analysis of the data obtained (multiple regression method, cross-correlation analysis, etc.) in order to identify the relationship between regional temperatures and the chemical composition of the deposited material with the construction of a regression model. Results. Based on the study of the amount and elemental composition of the sedimentary material of the seasonal bottom traps of Lake Shira, collected for 2012-2017, a dynamic model of the seasonal influx of sedimentary flows in lakes of this landscape-geochemical type was formulated. It has been established that the most intensive sedimentation of the material occurs in the summer-autumn period, less - in the winter-spring period. At the same time, in spring, the accumulation of allochthonous (terrigenous) aleurite material, supplied with flood waters, predominates; in the summer-autumn period, simultaneously with the deposition of clastogenic pelitic material, biogenic and chemogenic materials are accumulated in sediments in large quantities. In winter, clastogenic and biogenic processes of sedimentation practically stop, only chemogenic sedimentation of carbonates is observed. It was established that the sedimentation of allochthonous material entering the reservoir occurs during two-three months, which indicates a certain inertness of sedimentation. The presence of a stable relationship between the mass and chemical composition of terrigenous material entering the lake with the regional temperature of the near-surface air, which is one of the main regulators of the water balance of the reservoir, is shown.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Fefilova, Elena, Dubovskaya, Olga, Kononova, Olga, Frolova, Larisa, Abramova, Ekaterina, Nigamatzyanova, Gulnara
Заглавие : Data on taxa composition of freshwater zooplankton and meiobenthos across Arctic regions of Russia
Колич.характеристики :7 с
Коллективы : Institute of Biophysics of the Federal Research Center "Krasnoyarsk Science Center" of the Siberian Branch of the Russian Academy of Sciences [51.1.1]; Siberian Federal University [FSRZ-2020-0006]; Russian Science FoundationRussian Science Foundation (RSF) [20-17-00135]; Kazan Federal University [671-2020-0049]; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [18-05-00406]; Russian Foundation for Basic Research (RFBR)Russian Foundation for Basic Research (RFBR) [20-04-00145_a]
Место публикации : Data Brief: ELSEVIER, 2021. - Vol. 36. - Ст.107112. - ISSN 2352-3409, DOI 10.1016/j.dib.2021.107112
Примечания : Cited References:17. - The work was performed in part as Federal Tasks to the Department of Animal Ecology of the Institute of Biology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences (AAAA-A17-117112850235-2) (to EF and OK), to the Institute of Biophysics of the Federal Research Center "Krasnoyarsk Science Center" of the Siberian Branch of the Russian Academy of Sciences (project No. 51.1.1) and the Siberian Federal University (project No. FSRZ-2020-0006) (to OD). The paleolimnological part of this work was supported by grant from Russian Science Foundation (project 20-17-00135). L. Frolova and G. Nigamatzyanova were supported by the subsidy allocated to Kazan Federal University for the state assignment #671-2020-0049 in the sphere of scientific activities and by the Russian Foundation for Basic Research (grant 18-05-00406). The work was partly financially supported by the Russian Foundation for Basic Research (RFBR) grant: 20-04-00145_a (to EF). Monitoring investigations in the Lena River Delta were conducted under the framework of Russian-German, "Lena" expeditions (Alfred Wegener Institute, Potsdam, Germany) with logistic and technical support of Scientific Research Station "Samoylov Island" (the Trofimuk Institute of Petroleum-Gas, Geology and Geophysics SB RAS, Novosibirsk) (to EA).
Предметные рубрики: CRUSTACEA
RECORDS
LAKES
Аннотация: We present the presence/absence species list (Table 1) of rotifer, cladoceran, and copepod (Calanoida, Harpacticoida, and Cyclopoida) fauna from seven Arctic regions of Russia (the Kola Peninsula, the Pechora River Delta, the Bolshezemelskaya tundra, the Polar Ural, the Putorana Plateau, the Lena River Delta, and the Indigirka River Basin) based on our own and literature data. Our own records were obtained by analyzing samples of zooplankton, meiobenthos, and two cores of bottom sediments (from the Kola Peninsula and the Bolshezemelskaya tundra lakes) that we collected once in July or August in 1992, 1995-2017. To supplement the list, we used relevant literature with periods of research from the 1960s to the 2010s. The list is almost identical to "Dataset 2: Zooplankton and Meiofauna across Arctic Regions of Russia", which was analyzed but not published in [1]. The detailed analysis of this list revealed the specific composition of the aquatic fauna associated with the climatic and geographical factors [1]. The data provide information on the current state of biodiversity and species richness in Arctic fresh waters and can serve as the basis for monitoring these environments and predicting how they are likely to change in the future. (C) 2021 The Author(s). Published by Elsevier Inc.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Fefilova E., Dubovskaya O., Kononova O., Frolova L., Abramova E., Nigamatzyanova G.
Заглавие : Data on taxa composition of freshwater zooplankton and meiobenthos across Arctic regions of Russia
Место публикации : Data Brief: Elsevier Inc., 2021. - Vol. 36. - Ст.107112. - ISSN 23523409 (ISSN), DOI 10.1016/j.dib.2021.107112
Аннотация: We present the presence/absence species list (Table 1) of rotifer, cladoceran, and copepod (Calanoida, Harpacticoida, and Cyclopoida) fauna from seven Arctic regions of Russia (the Kola Peninsula, the Pechora River Delta, the Bolshezemelskaya tundra, the Polar Ural, the Putorana Plateau, the Lena River Delta, and the Indigirka River Basin) based on our own and literature data. Our own records were obtained by analyzing samples of zooplankton, meiobenthos, and two cores of bottom sediments (from the Kola Peninsula and the Bolshezemelskaya tundra lakes) that we collected once in July or August in 1992, 1995–2017. To supplement the list, we used relevant literature with periods of research from the 1960s to the 2010s. The list is almost identical to “Dataset 2: Zooplankton and Meiofauna across Arctic Regions of Russia”, which was analyzed but not published in [1]. The detailed analysis of this list revealed the specific composition of the aquatic fauna associated with the climatic and geographical factors [1]. The data provide information on the current state of biodiversity and species richness in Arctic fresh waters and can serve as the basis for monitoring these environments and predicting how they are likely to change in the future. © 2021
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kratasyuk, Valentina A., Kolosova, Elizaveta M., Sutormin, Oleg S., Lonshakova-Mukina, Viktoriya, I, Baygin, Matvey M., Rimatskaya, Nadezhda, V, Sukovataya, Irina E., Shpedt, Alexander A.
Заглавие : Software for Matching Standard Activity Enzyme Biosensors for Soil Pollution Analysis
Колич.характеристики :10 с
Коллективы : RFBRRussian Foundation for Basic Research (RFBR); Krasnoyarsk Territory and Krasnoyarsk Regional Fund of Science [20-44-243001]; Ministry of Science and Higher Education of the Russian Federation [FSRZ-2020-0006]
Место публикации : Sensors: MDPI, 2021. - Vol. 21, Is. 3. - Ст.1017. - ISSN 1424-8220(eISSN), DOI 10.3390/s21031017
Примечания : Cited References:20. - This research was funded by RFBR, Krasnoyarsk Territory and Krasnoyarsk Regional Fund of Science, Grant number 20-44-243001 and the Ministry of Science and Higher Education of the Russian Federation, Grant number FSRZ-2020-0006.
Аннотация: This work is dedicated to developing enzyme biosensor software to solve problems regarding soil pollution analysis. An algorithm and specialised software have been developed which stores, analyses and visualises data using JavaScript programming language. The developed software is based on matching data of 51 non-commercial standard soil samples and their inhibitory effects on three enzyme systems of varying complexity. This approach is able to identify the influence of chemical properties soil samples, without toxic agents, on enzyme biosensors. Such software may find wide use in environmental monitoring.
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11.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kratasyuk V. A., Kolosova E. M., Sutormin O. S., Lonshakova-Mukina V. I., Baygin M. M., Rimatskaya N. V., Sukovataya I. E., Shpedt A. A.
Заглавие : Software for matching standard activity enzyme biosensors for soil pollution analysis
Место публикации : Sensors: MDPI AG, 2021. - Vol. 21, Is. 3. - Ст.1017. - С. 1-10. - ISSN 14248220 (ISSN), DOI 10.3390/s21031017
Аннотация: This work is dedicated to developing enzyme biosensor software to solve problems regarding soil pollution analysis. An algorithm and specialised software have been developed which stores, analyses and visualises data using JavaScript programming language. The developed software is based on matching data of 51 non-commercial standard soil samples and their inhibitory effects on three enzyme systems of varying complexity. This approach is able to identify the influence of chemical properties soil samples, without toxic agents, on enzyme biosensors. Such software may find wide use in environmental monitoring. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Schartau, Ann Kristin, Mariash, Heather L., Christoffersen, Kirsten S., Bogan, Daniel, Dubovskaya, Olga P., Fefilova, Elena B., Hayden, Brian, Ingvason, Haraldur R., Ivanova, Elena A., Kononova, Olga N., Kravchuk, Elena S., Lento, Jennifer, Majaneva, Markus, Novichkova, Anna A., Rautio, Milla, Ruhland, Kathleen M., Shaftel, Rebecca, Smol, John P., Vrede, Tobias, Kahilainen, Kimmo K.
Заглавие : First circumpolar assessment of Arctic freshwater phytoplankton and zooplankton diversity: Spatial patterns and environmental factors
Колич.характеристики :18 с
Коллективы : RFBRRussian Foundation for Basic Research (RFBR) [20-04-00145_a]
Место публикации : Freshw. Biol.: WILEY, 2021. - Article in press. - ISSN 0046-5070, DOI 10.1111/fwb.13783. - ISSN 1365-2427(eISSN)
Примечания : Cited References:78. - RFBR, Grant/Award Number: 20-04-00145_a
Предметные рубрики: HIGH-LATITUDE LAKES
CLIMATE-CHANGE
SPECIES RICHNESS
BETA DIVERSITY
Аннотация: Arctic freshwaters are facing multiple environmental pressures, including rapid climate change and increasing land-use activities. Freshwater plankton assemblages are expected to reflect the effects of these stressors through shifts in species distributions and changes to biodiversity. These changes may occur rapidly due to the short generation times and high dispersal capabilities of both phyto- and zooplankton. Spatial patterns and contemporary trends in plankton diversity throughout the circumpolar region were assessed using data from more than 300 lakes in the U.S.A. (Alaska), Canada, Greenland, Iceland, the Faroe Islands, Norway, Sweden, Finland, and Russia. The main objectives of this study were: (1) to assess spatial patterns of plankton diversity focusing on pelagic communities; (2) to assess dominant component of beta diversity (turnover or nestedness); (3) to identify which environmental factors best explain diversity; and (4) to provide recommendations for future monitoring and assessment of freshwater plankton communities across the Arctic region. Phytoplankton and crustacean zooplankton diversity varied substantially across the Arctic and was positively related to summer air temperature. However, for zooplankton, the positive correlation between summer temperature and species numbers decreased with increasing latitude. Taxonomic richness was lower in the high Arctic compared to the sub- and low Arctic for zooplankton but this pattern was less clear for phytoplankton. Fennoscandia and inland regions of Russia represented hotspots for, respectively, phytoplankton and zooplankton diversity, whereas isolated regions had lower taxonomic richness. Ecoregions with high alpha diversity generally also had high beta diversity, and turnover was the most important component of beta diversity in all ecoregions. For both phytoplankton and zooplankton, climatic variables were the most important environmental factors influencing diversity patterns, consistent with previous studies that examined shorter temperature gradients. However, barriers to dispersal may have also played a role in limiting diversity on islands. A better understanding of how diversity patterns are determined by colonisation history, environmental variables, and biotic interactions requires more monitoring data with locations dispersed evenly across the circumpolar Arctic. Furthermore, the importance of turnover in regional diversity patterns indicates that more extensive sampling is required to fully characterise the species pool of Arctic lakes.
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13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Schartau A. K., Mariash H. L., Christoffersen K. S., Bogan D., Dubovskaya O. P., Fefilova E. B., Hayden B., Ingvason H. R., Ivanova E. A., Kononova O. N., Kravchuk E. S., Lento J., Majaneva M., Novichkova A. A., Rautio M., Ruhland K. M., Shaftel R., Smol J. P., Vrede T., Kahilainen K. K.
Заглавие : First circumpolar assessment of Arctic freshwater phytoplankton and zooplankton diversity: Spatial patterns and environmental factors
Место публикации : Freshw. Biol.: Blackwell Publishing Ltd, 2021. - Article in press. - ISSN 00465070 (ISSN), DOI 10.1111/fwb.13783
Аннотация: Arctic freshwaters are facing multiple environmental pressures, including rapid climate change and increasing land-use activities. Freshwater plankton assemblages are expected to reflect the effects of these stressors through shifts in species distributions and changes to biodiversity. These changes may occur rapidly due to the short generation times and high dispersal capabilities of both phyto- and zooplankton. Spatial patterns and contemporary trends in plankton diversity throughout the circumpolar region were assessed using data from more than 300 lakes in the U.S.A. (Alaska), Canada, Greenland, Iceland, the Faroe Islands, Norway, Sweden, Finland, and Russia. The main objectives of this study were: (1) to assess spatial patterns of plankton diversity focusing on pelagic communities; (2) to assess dominant component of ? diversity (turnover or nestedness); (3) to identify which environmental factors best explain diversity; and (4) to provide recommendations for future monitoring and assessment of freshwater plankton communities across the Arctic region. Phytoplankton and crustacean zooplankton diversity varied substantially across the Arctic and was positively related to summer air temperature. However, for zooplankton, the positive correlation between summer temperature and species numbers decreased with increasing latitude. Taxonomic richness was lower in the high Arctic compared to the sub- and low Arctic for zooplankton but this pattern was less clear for phytoplankton. Fennoscandia and inland regions of Russia represented hotspots for, respectively, phytoplankton and zooplankton diversity, whereas isolated regions had lower taxonomic richness. Ecoregions with high ? diversity generally also had high ? diversity, and turnover was the most important component of ? diversity in all ecoregions. For both phytoplankton and zooplankton, climatic variables were the most important environmental factors influencing diversity patterns, consistent with previous studies that examined shorter temperature gradients. However, barriers to dispersal may have also played a role in limiting diversity on islands. A better understanding of how diversity patterns are determined by colonisation history, environmental variables, and biotic interactions requires more monitoring data with locations dispersed evenly across the circumpolar Arctic. Furthermore, the importance of turnover in regional diversity patterns indicates that more extensive sampling is required to fully characterise the species pool of Arctic lakes. © 2021 The Authors. Freshwater Biology published by John Wiley & Sons Ltd.
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14.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Esimbekova E. N., Torgashina I. G., Kalyabina V. P., Kratasyuk V. A.
Заглавие : Enzymatic Biotesting: Scientific Basis and Application
Место публикации : Contemp. Probl. Ecol.: Pleiades journals, 2021. - Vol. 14, Is. 3. - С. 290-304. - ISSN 19954255 (ISSN), DOI 10.1134/S1995425521030069
Примечания : Cited By :1
Аннотация: Abstract: The paper provides a review of the current state of research in the field of biotesting, and the problems of environmental studies and ways to solve them are discussed. The basic principles and examples of using enzymes for detecting toxicants in various environmental samples are considered. Based on an analysis of numerous published data, the advantages and limitations, as well as the prospects for using enzymes for performing biotesting tasks, are assessed. A separate section of the review is devoted to bioluminescent enzymatic bioassays developed by the authors and successfully used for environmental monitoring of water, soil, and air. The necessity of developing a battery of enzymatic bioassays is substantiated. It allows one to have the most complete and accurate information about the degree of pollution of environmental objects. © 2021, Pleiades Publishing, Ltd.
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15.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Krasitskaya, Vasilisa V., Goncharova, Natalia S., Biriukov, Vladislav V., Bashmakova, Eugenia E., Kabilov, Marsel R., Baykov, Ivan K., Sokolov, Aleksey E., Frank, Ludmila A.
Заглавие : The Ca2+-Regulated Photoprotein Obelin as a Tool for SELEX Monitoring and DNA Aptamer Affinity Evaluation
Колич.характеристики :6 с
Коллективы : Russian Foundation for Basic Research (RFBR)Russian Foundation for Basic Research (RFBR) [18-38-00531]
Место публикации : Photochem. Photobiol.: WILEY, 2020. - Article in press. - ISSN 0031-8655, DOI 10.1111/php.13274. - ISSN 1751-1097(eISSN)
Примечания : Cited References:25. - This work has been supported by the Russian Foundation for Basic Research (RFBR) under the grant no 18-38-00531.
Предметные рубрики: CARDIAC TROPONIN-I
BIOLUMINESCENCE
IMMUNOASSAY
APTASENSOR
DIAGNOSIS
Аннотация: Bioluminescent solid-phase analysis was proposed to monitor the selection process and to determine binding characteristics of the aptamer-target complexes during design and development of the specific aptamers. The assay involves Ca2+-regulated photoprotein obelin as a simple, sensitive and fast reporter. Applicability and the prospects of the approach were exemplified by identification of DNA aptamers to cardiac troponin I, a highly specific early biomarker for acute myocardial infarction. Two structurally different aptamers specific to various epitopes of troponin I were obtained and then tested in a model bioluminescent assay.
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16.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Polyakova, Galina, Pashenova, Natalia, Senashova, Vera, Podolyak, Natalia, Kudryasheva, Nadezhda
Заглавие : Pine Stands as Bioindicators: Justification for Air Toxicity Monitoring in an Industrial Metropolis
Колич.характеристики :13 с
Коллективы : Russian Academy of SciencesRussian Academy of Sciences [0356-2018-0742, 0356-2017-0017]; RFBRRussian Foundation for Basic Research (RFBR) [15-04-06575]; RFBR-Krasnoyarsk Regional Foundation [18-44-240004, 18-44-242002]
Место публикации : Environments: MDPI, 2020. - Vol. 7, Is. 4. - Ст.28. - ISSN 2076-3298(eISSN), DOI 10.3390/environments7040028
Примечания : Cited References:35. - This work was supported by the state budget allocated to the fundamental research at the Russian Academy of Sciences, projects 0356-2018-0742 and 0356-2017-0017, and by RFBR grant 15-04-06575, RFBR-Krasnoyarsk Regional Foundation N 18-44-240004, grant 18-44-242002.
Предметные рубрики: HORMESIS
Аннотация: Five permanent sample plots (SPs; 200-250 trees per plot) were established in middle-aged high-grade suburban pine stands near the industrial city of Krasnoyarsk, Siberia, Russia. Needle damage, inventory parameters of the stands, and the defense response of the stem phloem were evaluated annually for the years 2002-2019 and attributed to acute or chronic toxic exposures (creeping fire or industrial pollutants, respectively). The results form a basis for using trees as bioindicators. A newly elaborated stem lesion test was formed from a hypothesis on the upward sugar transport for the regeneration of an injured crown, based on Eschrich's model of bidirectional sugar transport in the phloem. The formation of a phloem lesion was induced by inoculation of the stem with a mycelial extract of the ophiostomatoid fungus Ceratocystis laricicola. The lesion length and its shift relative to the inoculation hole were measured. An increase in the length of needles at early stages of stand weakening by pollutants was found to correspond to the hormesis model (Selye's adaptation syndrome). A possibility of assessing the chronology of pollutant toxicity and the duration of the recovery period after creeping fire was shown.
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17.

Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Kovalev A. A., Ivanova Yu. D., Sukhovolskiy A. A., Volkov V. E., Sukhovolskiy V. G.
Заглавие : Mathematical models for determining the boundaries of forest areas unstable to the appearance of insects using satellite data (MODIS)
Место публикации : IOP Conference Series: Materials Science and Engineering: Institute of Physics Publishing, 2020. - Vol. 734: 2nd International Scientific Conference on Advanced Technologies in Aerospace, Mechanical and Automation Engineering, MIST: Aerospace 2019 (18 November 2019 through 21 November 2019, ) Conference code: 157461, Is. 1. - Ст.012091. - , DOI 10.1088/1757-899X/734/1/012091
Аннотация: The proposed approach allows us to evaluate the response of forest stands to local weather changes and resistance to insect attack without using data from weather stations, sometimes located far from experimental forest areas. All raw data were obtained during the season using remote sensing data (MODIS / AQUA). The ability to pre-determine decrease and loss of forest stands resistance to possible insect attacks can be extremely important for solving the tasks of forest-entomological monitoring and calculating the risk of forest insect's outbreaks. © Published under licence by IOP Publishing Ltd.
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18.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bolsunovsky A., Dementyev D., Trofimova E.
Заглавие : Biomonitoring of radioactive contamination of the Yenisei River using aquatic plants
Место публикации : J. Environ. Radioact.: Elsevier Ltd, 2020. - Vol. 211. - Ст.106100. - ISSN 0265931X (ISSN) , DOI 10.1016/j.jenvrad.2019.106100
Аннотация: The Yenisei River is contaminated by artificial radionuclides released by one of the Russian facilities producing weapons-grade plutonium (the Mining-and-Chemical Combine, MCC), which has been in operation for 60 years. The paper presents results of long-term monitoring of radionuclide concentrations in six aquatic plant species collected from the 1400 km Yenisei River stretch downstream of the city of Krasnoyarsk. Before the last MCC reactor was shut down (in 2010), up to 30 artificial radionuclides were detected in the plant biomass, and 2 and 5 years after the reactor shutdown, 11 and 3–5 radionuclides, respectively, were detected. The highest concentrations of radionuclides were recorded in Fontinalis antipyretica. The aquatic plant Elodea canadensis, which commonly occurs in the Yenisei River, was used in the cytogenetic study. High frequencies of chromosomal aberrations (up to 33%) were revealed in cells of Elodea canadensis roots from the Yenisei region affected by the MCC radioactive discharge, at dose rates of 45–72 ?Gy/d, while in the cells of the plant roots from the reference areas, the frequency of chromosomal aberrations was 5–7%, at dose rates below 2 ?Gy/d. The higher frequencies of chromosomal aberrations in Elodea canadensis collected from the parts of the River with increased concentrations of artificial radionuclides are associated with the radiation factor. The aquatic plant Elodea canadensis can be recommended as a bio-indicator for radioactively contaminated aquatic ecosystems. © 2019 Elsevier Ltd
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19.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bolsunovsky, Alexander, Dementyev, Dmitry, Trofimova, Elena
Заглавие : Biomonitoring of radioactive contamination of the Yenisei River using aquatic plants
Колич.характеристики :12 с
Коллективы : Krasnoyarsk Regional Fund of Science - Russian Foundation for Basic Research [18-44-240001]
Место публикации : J. Environ. Radioact.: ELSEVIER SCI LTD, 2020. - Vol. 211. - Ст.106100. - ISSN 0265-931X, DOI 10.1016/j.jenvrad.2019.106100. - ISSN 1879-1700(eISSN)
Примечания : Cited References:39. - The authors are grateful to researchers T. Zotina, M. Medvedeva, A. Zueva, E. Iniatkina, and Yu. Kladko of the Institute of Biophysics SB RAS (Krasnoyarsk, Russia) for their assistance in collecting plant samples and conducting cytogenetic analysis. The study was partly supported by grant of the Krasnoyarsk Regional Fund of Science - Russian Foundation for Basic Research No. 18-44-240001.
Предметные рубрики: GAMMA-EMITTING RADIONUCLIDES
ELODEA-CANADENSIS
NONHUMAN BIOTA
Аннотация: The Yenisei River is contaminated by artificial radionuclides released by one of the Russian facilities producing weapons-grade plutonium (the Mining-and-Chemical Combine, MCC), which has been in operation for 60 years. The paper presents results of long-term monitoring of radionuclide concentrations in six aquatic plant species collected from the 1400 km Yenisei River stretch downstream of the city of Krasnoyarsk. Before the last MCC reactor was shut down (in 2010), up to 30 artificial radionuclides were detected in the plant biomass, and 2 and 5 years after the reactor shutdown, 11 and 3-5 radionuclides, respectively, were detected. The highest concentrations of radionuclides were recorded in Fontinalis antipyretica. The aquatic plant Elodea canadensis, which commonly occurs in the Yenisei River, was used in the cytogenetic study. High frequencies of chromosomal aberrations (up to 33%) were revealed in cells of Elodea canadensis roots from the Yenisei region affected by the MCC radioactive discharge, at dose rates of 45-72 mu Gy/d, while in the cells of the plant roots from the reference areas, the frequency of chromosomal aberrations was 5-7%, at dose rates below 2 mu Gy/d. The higher frequencies of chromosomal aberrations in Elodea canadensis collected from the parts of the River with increased concentrations of artificial radionuclides are associated with the radiation factor. The aquatic plant Elodea canadensis can be recommended as a bio-indicator for radioactively contaminated aquatic ecosystems.
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20.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Dementyev D., Bolsunovsky A.
Заглавие : A long-term study of radionuclide concentrations in mushrooms in the 30-km zone around the Mining-and-Chemical Combine (Russia)
Место публикации : Isot. Environ. Health Stud.: Taylor and Francis Ltd., 2020. - Article in press. - ISSN 10256016 (ISSN), DOI 10.1080/10256016.2020.1718124
Аннотация: 137Cs concentrations were measured in mushrooms in an area affected by radioactive discharges of the Mining-and-Chemical Combine (MCC) (Rosatom, Russia) in 2002–2017. The sources of radionuclides in the study sites were global fallouts and waterborne and airborne radioactive discharges of the MCC. The mushroom species Suillus granulatus and S. luteus showed the highest 137Cs concentrations (140–7100 Bq kg?1) for this area. Over the entire monitoring period, no significant change in 137Cs concentration was observed in the Suillus spp. samples collected from the sites with the aerial deposition of radionuclides. In the floodplain site with the radionuclide deposition from water and air, a significant decrease in the average 137Cs concentration was observed in the period between 2004 and 2017: a three-fold decrease in Suillus spp. and a nine-fold decrease in Lactarius deliciosus. The effective half-lives of 137Cs in fruiting bodies of the mushrooms L. deliciosus and Suillus spp. in this site were 3.6 ± 0.6 and 9.2 ± 2.7 years, respectively. © 2020, © 2020 Informa UK Limited, trading as Taylor & Francis Group.
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