タグ「137Cs」
- Title: The history of the Chernobyl 137Cs contamination of the flood plain soils and its relation to physical and chemical properties of the soil horizons (a case study)
Author: Korobova, E. / Linnik, V. / Chizhikova, N.
Reference: Journal of Geochemical Exploration, 96 (2-3), p.236-255, Feb 2008
doi: 10.1016/j.gexplo.2007.04.014
Keywords: 137Cs; Alluvial soils; Chernobyl contamination of the flood plain; Granulometry; Clay mineralogy; Adsorption
Abstract: A study of the 137Cs distribution and mobility in alluvial soil profiles was performed in the basin of the Iput river (Bryansk region) to reveal peculiarities of the flood plain contamination after the accident at the Chernobyl NPP. Four study plots have been located on the medium and low-level riverside flood plain of the rivers Iput and its right tributary Buldynka.
URL: http://www.sciencedirect.com/science/article/pii/S037567420700057X
- Title: Sedimentation rates measurements in former channels of the upper Rhône river using Chernobyl 137Cs and 134Cs as tracers.
Author: Rostan, J C / Juget, J / Brun, A M
Reference: The Science of the total environment, 193 (3), p.251-262, Jan 1997
doi:
Keywords: Fluvial hydrosystem; Radionuclide; Sedimentation rate; Sediment organic carbon
Abstract: Former river channels are aquatic ecosystems with a different geomorphology generated by fluvial dynamics more or less linked to the main channel. They present different ecological successions to become terrestrial ecosystems and are thus supposed to have different sedimentation rates. The aim of this paper is to assess this sedimentation rate using radioactive tracer methodology commonly used in lake studies.
URL: http://www.sciencedirect.com/science/article/pii/S004896979605348X
- Title: Dynamics of 137Cs in the forests of the 30-km zone around the Chernobyl nuclear power plant.
Author: Mamikhin, S V / Tikhomirov, F A / Shcheglov, A I
Reference: The Science of the total environment, 193 (3), p.169-177, Jan 1997
doi:
Keywords: Radionuclides; Forest; Dynamics
Abstract: Dynamics of the 137Cs content in the components of the forests in the 30-km zone around the Chernobyl nuclear power plant (NPP) in 1986-1994 are associated mainly with such factors as the size of radioactive particles in the fallout, ecosystem humidification and soil type, tree age. The influence of particle size was especially noticeable between 1986-1987 and was displayed by low biological availability of radionuclides in the near part of the zone (within the 10-km radius circle around the NPP) in comparison with more distant regions (within the 30-km radius circle).
URL: http://www.ncbi.nlm.nih.gov/pubmed/9092076?dopt=Abstract
- Title: Amount of 137Cs and 134Cs radionuclides in the Black Sea produced by the Chernobyl accident
Author: Eremeev, V.N. / Ivanov, L.M. / Kirwan, A.D., Jr / Margolina, T.M.
Reference: Journal of Environmental Radioactivity, 27 (1), p.49-63, Jan 1995
doi: 10.1016/0265-931X(94)00032-R
Keywords:
Abstract: Revised estimates of the amount of the nuclides 137Cs and 134Cs in the Black Sea resulting from the Chernobyl accident are reported. These results are at some variance with those reported by Chudinovskikh and Eremeev (Practical Ecology of Black Sea Areas, Naukova dumka, Kiev, 1990, pp. 46–56) and Nikitin et al. (Atomic Energy, 65 (1988) 134-7). The analysis here employs a spectral method whereas these other studies utilized less accurate methods. The study illustrates that the choice of numerical techniques for assimilating in-situ data into a model is important.
URL: http://www.sciencedirect.com/science/article/pii/0265931X9400032R
- Title: Impact of Scots pine (Pinus sylvestris L.) plantings on long term 137Cs and 90Sr recycling from a waste burial site in the Chernobyl Red Forest
Author: Thiry, Yves / Colle, Claude / Yoschenko, Vasyl / Levchuk, Svjatoslav / Van Hees, May / Hurtevent, Pierre / Kashparov, Valery
Reference: Journal of Environmental Radioactivity, 100 (12), p.1062-1068, Dec 2009
doi: 10.1016/j.jenvrad.2009.05.003
Keywords: Radiocaesium; Radiostrontium; Forest; Biological cycle; Waste; Remediation; Afforestation
Abstract: Plantings of Scots pine (Pinus sylvestris L.) on a waste burial site in the Chernobyl Red Forest was shown to greatly influence the long term redistribution of radioactivity contained in sub-surfaces trenches. After 15 years of growth, aboveground biomass of the average tree growing on waste trench no.22 had accumulated 1.7 times more 137Cs than that of trees growing off the trench, and 5.4 times more 90Sr.
URL: http://www.sciencedirect.com/science/article/pii/S0265931X0900109X
- Title: Distributions of 137Cs and 210Pb in moss collected from Belarus and Slovakia
Author: Aleksiayenak, Yu.V. / Frontasyeva, M.V. / Florek, M. / Sykora, I. / Holy, K. / Masarik, J. / Brestakova, L. / (…) / Ramatlhape, K.I.
Reference: Journal of Environmental Radioactivity, 117, p.19-24, Mar 2013
doi: 10.1016/j.jenvrad.2012.01.018
Keywords: 137Cs and 210Pb in moss; 137Cs in surface air; Chernobyl fallout; Gamma spectroscopy
Abstract: ► Belarus moss was used as a biological indicator of 137Cs and 210Pb. ► Comparison with concentration of 137Cs and 210Pb in moss from Slovakia. ► Moss samples reflect the original distribution of Chernobyl fallout in Belarus. ► Regular decrease of the annual average activity of 137Cs in surface air in Slovakia. ► Median concentration of 210Pb in moss from Belarus is 2.3 times lower than in Slovakia.
URL: http://www.sciencedirect.com/science/article/pii/S0265931X1200029X
Title: Cesium accumulation by fish following acute input to lakes: a comparison of experimental and Chernobyl-impacted systems
Author:Pinder J E 3rd, Hinton T G, Whicker F W, Smith J T
Reference: Journal of Environmental Radioactivity, 100 (6), p.456-467, Jun 2009
doi: 10.1016/j.jenvrad.2009.03.004
Keywords:137Cs;133Cs;Fish;Uptake rates;Loss rates;Maximum concentrations;Pond 4;Chernobyl
Abstract: An uptake parameter u (L kg−1 d−1) and a loss rate parameter k (d−1) were estimated for the patterns of accumulation and loss of 133Cs by three fish species following an experimental 133Cs addition into a pond in South Carolina, USA. These u and k parameters were compared to similar estimates for fish from other experimental ponds and from lakes that received 137Cs deposition from Chernobyl. The maximum Cs concentrations in fish were largely determined by initial Cs concentrations in the water column. These maximum concentrations in fish and the times required to reach these maxima are potentially useful indicators for assessments of risks to humans from fish consumption.
URL: http://www.sciencedirect.com/science/article/pii/S0265931X09000411
- Title: Strontium-90 and caesium-137 activity concentrations in bats in the Chernobyl exclusion zoneAuthor: Gashchak, Sergey / Beresford, Nicholas Anthony / Maksimenko, Andrey / Vlaschenko, Anton S
Reference: Radiation and environmental biophysics, 49 (4), p.635-644, Nov 2010
doi: 10.1007/s00411-010-0322-0
Keywords:
Abstract: Bats are a protected species and as such may be an object of protection in radiological assessments of the environment. However, there have previously been only few radioecological studies of species of bats. In this paper, results for >140 measurements of (90)Sr and (137)Cs in 10 species of bats collected within the Chernobyl zone are presented. There was some indication of a decreasing transfer of (90)Sr with increasing deposition, although this was inconsistent across species and explained little of the observed variability. There was no difference between male and female bats in the transfer (expressed as the ratio of whole-body activity concentrations to those in soil) of either radionuclide. There was considerable variability in transfer across all species groups. At two sites where there were sufficient data, Eptesicus serotinus was found to have higher transfer than other species.
URL: http://www.ncbi.nlm.nih.gov/pubmed/20714905?dopt=Abstract
- Title: FREQUENCY DISTRIBUTIONS OF 90SR AND 137CS CONCENTRATIONS IN AN ECOSYSTEM OF THE ‘RED FOREST’ AREA IN THE CHERNOBYL EXCLUSION ZONE
Author: Gaschak, Sergey P / Makliuk, Yulia A / Maksimenko, Andrey M / Bondarkov, Mikhail D / Chizhevsky, Igor / Caldwell, Eric F / Jannik, G Timothy / Farfán, Eduardo B
Reference:Health physics, 101 (4), p.409-415, Oct 2011
doi:
Keywords: Chernobyl, bioaccumulation factor, 90Sr, 137Cs
Abstract: In the most highly contaminated region of the Chernobyl Exclusion Zone: the ‘Red Forest’ site, the accumulation of the major dose-affecting radionuclides (90Sr and 137Cs) within the components of an ecological system encompassing 3,000 m2 were characterized. The sampled components included soils (top 0-10 cm depth), Molina caerulea (blue moor grass), Camponotus vagus (carpenter ants) and Pelobates fuscus (spade-footed toad).
URL: http://www.ncbi.nlm.nih.gov/pubmed/21878766?dopt=Abstract
Title: METHOD FOR SIMULTANEOUS 90SR AND 137CS IN-VIVO MEASUREMENTS OF SMALL ANIMALS AND OTHER ENVIRONMENTAL MEDIA DEVELOPED FOR THE CONDITIONS OF THE CHERNOBYL EXCLUSION ZONE
Author: Bondarkov, Mikhail D / Maksimenko, Andrey M / Gaschak, Sergey P / Zheltonozhsky, Viktor A / Jannik, G Timothy / Farfán, Eduardo B
Reference: Health physics, 101 (4), p.383-392, Oct 2011
doi:
Keywords: Chernobyl, 90Sr, 137Cs, whole body counting
Abstract: To perform in vivo simultaneous measurements of the 90Sr and 137Cs content in the bodies of animals living in the Chernobyl Exclusion Zone (ChEZ), an appropriate method and equipment were developed and installed in a mobile gamma beta spectrometry laboratory. This technique was designed for animals of relatively small sizes (up to 50 g).
URL: http://www.ncbi.nlm.nih.gov/pubmed/21878764?dopt=Abstract
