Features of 137Cs accumulation in fish of different trophic levels in water reservoirs, contaminated as a result of the Chernobyl nuclear power plant accident.

Title: Features of 137Cs accumulation in fish of different trophic levels in water reservoirs, contaminated as a result of the Chernobyl nuclear power plant accident.

Author: Polyakova, Natalia Igorevna

Reference: Moscow, 2008

Keywords: accumulation of cesium-137, ichthyology, fish, water reservoirs, contamination with radionuclides

Abstract: The aim of this work was a detailed study of the l37Cs accumulation features in fish of different trophic levels in reservoirs of different types (river, lake, water reservoir), contaminated after the Chernobyl accident.

URL:http://www.dissercat.com/content/osobennosti-nakopleniya-137cs-u-ryb-raznykh-troficheskikh-urovnei-iz-vodoemov-zagryaznennykh

137Cs and 90Sr in bodies of surface water in Bryansk oblast in 1987–2002 (English)

Author: S. M. Vakulovskii, Ya. I. Gaziev, L. V. Kolesnikova, G. I. Petrenko, É. G. Tertyshnik, A. D. Uvarov

Reference: Kluwer Academic Publishers-Consultants Bureau, 2006

ISSN: 1063-4258

DOI: 10.1007/s10512-006-0052-1

Keywords: 137cs, 90sr, river, lake

Abstract: The dynamics of the radioactive contamination with 137Cs and 90Sr of the Besed’ and Iput’ rivers in 1987–2004 and the nondraining Lake Svyatoe on the Besed’ River and the slowly draining Lake Kozhanovskoe in 1992–2002 is prsented. Data on the contamination of the components and shorelines of reservoirs are presented. It is shown that the radioactive contamination of these rivers is decreasing; the present level of contamination is much lower than the intervention level. The radionuclide content in the nondraining and slowly draining lakes remains high. Specifically, the 137Cs concentration in the waters of Lake Svyatoe on the Besed’ River is at the intervention level, and the 137Cs concentration in the fish in Lake Kozhanovskoe is ten times higher than the established norms.

URL: http://link.springer.com/article/10.1007%2Fs10512-006-0052-1#

Radionuclides and microelements in natural waters in the zone of a uranium-vanadium deposit (Republic of Karelia) (English)

Author: Lukin A.A., Mel’nik N.A.

Reference: Gazette “Water Resources”, 2006

ISSN: 0097-8087

DOI: 10.1134/S009780780601009X

Keywords: radionuclides, water, soil, fish, concentration of uranium and vanadium

Abstract: The results of studies performed in the area of a uranium-vanadium deposit are used to characterize the concentration and distribution of microelements and radionuclides in water, soil, and fish. The exposure rate on the surface of the examined samples is found to be equal to 15�20 �r/h, i.e., to lie at the background level, which means that these samples are not an external radiation hazard for population. Concentrations of U and V in water somewhat greater than background values were recorded, though they are lower than MAC for fishery water bodies. The collected data show that a delicate equilibrium has formed in this territory, although the hydrochemical characteristics have not changed within the recent 40 years, and radionuclide content of water, soil, bottom sediments, and fish are at an extremely low level.

URL: http://direct.bl.uk/bld/PlaceOrder.do?UIN=183368045&ETOC=RN&from=searchengine

Application of potassium chloride to a Chernobyl-contaminated lake: modelling the dynamics of radiocaesium in an aquatic ecosystem and decontamination of fish

Title: Application of potassium chloride to a Chernobyl-contaminated lake: modelling the dynamics of radiocaesium in an aquatic ecosystem and decontamination of fish

Author: James T Smith, Anatoly V Kudelsky, Igor N Ryabov, Rolf H Hadderingh, Anatoly A Bulgakov

Reference: Science of The Total Environment, Volume 305, Issues 1–3, 15 April 2003, Pages 217-227

DOI: http://dx.doi.org/10.1016/S0048-9697(02)00477-1

Keywords: Chernobyl; Fish; Radiocaesium; Countermeasures

Abstract: This study tests a whole-lake experiment to reduce the bioaccumulation of radiocaesium (¹³⁷Cs) in fish in lakes contaminated by the Chernobyl accident. In many lakes in the Chernobyl contaminated areas, radiocaesium activity concentrations in fish are still significantly higher (up to 100 times in some species) than acceptable limits for human consumption. Estimates of the long-term rate of decline of ¹³⁷Cs in fish in these regions, in the absence of countermeasures, show that radioactivity in fish in some lakes may remain above acceptable consumption limits for a further 50–100 years from the present date. In February 1998 we applied 15 t of potassium chloride to Lake Svyatoe, Kostiukovichy. The addition of potassium chloride fertilizer to the lake resulted in a decrease in activity concentration of ¹³⁷Cs to approximately 40% of pre-countermeasure values in a number of different fish species. In contrast to Lake Svyatoe, ¹³⁷Cs activity concentrations in fish from four control lakes showed no systematic decrease over the study period. Simplified models for transfers of ¹³⁷Cs in lakes successfully ‘blind’ predicted the changes in ¹³⁷Cs in water and fish resulting from this major alteration of the potassium concentration of the lake. The experiment represents the first test of a predictive model for the dynamics of radiocaesium in response to a major perturbation in potassium (its major competitor ion) in a whole lake ecosystem.

URL: http://www.sciencedirect.com/science/article/pii/S0048969702004771

Preventive gradation of lakes with respect to 90Sr accumulation by fish in northwestern Russia (English)

Author: Bakunov N.A., Savatyugin L.M., Bolshiyanov D.Yu.

Reference: Gazette “ЭКОЛОГИЯ“ (Ecology), 2007

ISSN: 0367-0597

DOI: 10.1134/S1067413607020142

Keywords: lake, 90sr, fish

Abstract:

URL: http://elibrary.ru/item.asp?id=13563775

Radionuclides contamination in fish in the exclusion zone of Chernobyl.

Author: Gudkov D.I., Kaglyan A.E., Kireev S.I., Nazarov A.B., Klenus V.G.

Reference: Gazette “РАДИАЦИОННАЯ БИОЛОГИЯ. РАДИОЭКОЛОГИЯ “ (Radiation Biology, Radioecology), 2008

ISSN: 0869-8031

DOI: 10.1134/S0869803108010049

Keywords: fish, soil, contamination 90sr 137cs, transuranic elements

Abstract: Observes the contamination of 90sr and 137 cs, as well as transuranic elements, in the organism of fish (specified by species) in the exclusion area of Chernobyl. The article also describes the migration of radionuclides from water bodies into soil.

URL: http://elibrary.ru/item.asp?id=9603820

Levels of cesium, mercury and lead in fish, and cesium in pond sediments in an inhabited region of the Ukraine near Chernobyl

• Title: Levels of cesium, mercury and lead in fish, and cesium in pond sediments in an inhabited region of the Ukraine near Chernobyl

Author: Jagoe, Charles H / Chesser, Ronald K / Smith, Michael H / Lomakin, Michael D / Lingenfelser, Susan K / Dallas, Cham E

Reference: Environmental Pollution, 98 (2), p.223-232, Nov 1997            

doi: 10.1016/S0269-7491(97)00135-8

Keywords: Radiocesium; mercury; lead; crucian carp; Chernobyl

Abstract: Samples of crucian carp (Carassius carassius) and sediments collected from 14 ponds within and outside the 30 km exclusion zone southeast of Chernobyl were analyzed for radiocesium; major anions and cations in water were determined for each pond, and other atmospherically- transported pollutants (Pb and Hg) were measured in fish muscle.

URL: http://www.sciencedirect.com/science/article/pii/S0269749197001358

Radiocaesium concentration factors of Chernobyl-contaminated fish: a study of the influence of potassium, and “blind” testing of a previously developed model

• Title: Radiocaesium concentration factors of Chernobyl-contaminated fish: a study of the influence of potassium, and “blind” testing of a previously developed model

Author: Smith, James T / Kudelsky, Anatoly V / Ryabov, Igor N / Hadderingh, Rolf H

Reference: Journal of Environmental Radioactivity, 48 (3), p.359-369, May 2000

doi: 10.1016/S0265-931X(99)00089-2

Keywords: Radiocaesium; Fish; Chernobyl; Modelling

Abstract: The radiocaesium concentration factors (CF) of different fish species in 10 lakes in Russia, Belarus and Ukraine were measured between 6 and 11 yr after the Chernobyl accident. Clear inverse relations were observed between fish CF and lakewater K⁺ concentration.

URL: http://www.sciencedirect.com/science/article/pii/S0265931X99000892

Modelling the dynamics of fish contamination by Chernobyl radiocaesium: an analytical solution based on potassium mass balance

• Title: Modelling the dynamics of fish contamination by Chernobyl radiocaesium: an analytical solution based on potassium mass balance

Author: Koulikov, Alexei O. / Meili, Markus

Reference: Journal of Environmental Radioactivity, 66 (3), p.309-326, Jan 2003

doi: 10.1016/S0265-931X(02)00134-0

Keywords: Modelling; Radiocaesium; Fish; Chernobyl

Abstract: After the sudden fallout from the Chernobyl nuclear accident in 1986, activities and bioaccumulation factors of radiocaesium (¹³⁷Cs, ¹³⁴Cs) fluctuated strongly over several years before reaching quasi-equilibrium, with patterns significantly differing among organisms.

URL: http://www.sciencedirect.com/science/article/pii/S0265931X02001340

Long-Term Observation of Radioactivity Contamination in Fish around Chernobyl

• Title: Long-Term Observation of Radioactivity Contamination in Fish around Chernobyl

Author: Igor N. RYABOV

Reference: A.N.Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Aug 2002

doi:

Keywords:

Abstract: Dynamics of 137Cs accumulation by marketable fishes in different kinds of water bodies (cooling pond, water reservoir, lake) polluted by radionuclides after the Chernobyl accident has been studied. The highest concentration of 137Cs, reaching 500 kBq/kg w.w. (wet weight) was registered in fish inhabiting the cooling pond of ChNPP in 1986. During the last 15 years the level of radionuclides in fishes of all water bodies came down, but rates of lowering are different.

URL: http://www.rri.kyoto-u.ac.jp/NSRG/reports/kr79/kr79pdf/Ryabov.pdf