カテゴリー「ecology・environment」
- Title: Depth distribution of 137Cs, 134Cs, and 131I in soil profile after Fukushima Dai-ichi Nuclear Power Plant Accident
Author: Kato, Hiroaki / Onda, Yuichi / Teramage, Mengistu Reference: Journal of Environmental Radioactivity, 111, p.59-64, Sep 2012 doi: 10.1016/j.jenvrad.2011.10.003
Keywords: Fukushima Dai-ichi Nuclear Power Plant accident; 137Cs; 134Cs; 131I; Depth distribution; Soil profile.
Abstract: Soil, vegetation and other ecological compartments are expected to be highly contaminated by the deposited radionuclides after the Fukushima Dai-ichi Nuclear Power Plant (FDNPP) accident triggered by a magnitude 9.0 earthquake and the resulting tsunami on 11 March 2011. However, there is no field measurement data on the depth distributions of radiocaesium and 131I concentrations in soil profile.
URL: http://www.sciencedirect.com/science/article/pii/S0265931X11002426
- Title: Effects of long-term chronic exposure to radionuclides in plant populations
Author: Geras’kin, S. / Evseeva, T. / Oudalova, A. Reference: Journal of Environmental Radioactivity, In Press, Corrected Proof, Apr 2012 doi: 10.1016/j.jenvrad.2012.03.007
Keywords: Radioactive contamination; Chronic exposure; Plant populations; Reproductive ability; Population genetic structure; Radio-adaptation
Abstract: The results of field studies carried out on different plant species (winter rye and wheat, spring barley, oats, Scots pine, wild vetch, crested hairgrass) in various radioecological situations (nuclear weapon testing, the Chernobyl accident, uranium and radium processing) to investigate the effects of long-term chronic exposure to radionuclides are discussed.
URL: http://www.sciencedirect.com/science/article/pii/S0265931X12000720
- Title: Chernobyl radiocaesium in an upland sheep farm ecosystem
Author: Howard, B.J. / Beresford, N.A.
Reference: British Veterinary Journal, 145 (3), p.212-219, May 1989
doi: 10.1016/0007-1935(89)90073-0
Keywords:
Abstract: Following the deposition of radiocaesium from the Chernobyl accident the movement and slaughter of sheep in upland areas of west Cumbria, Scotland and Wales was restricted. Studies on the radioecology of Cs-137 and Cs-134 have been conducted at a farm within the affected area of west Cumbria since July 1986. The radiocaesium activity of upland sheep was found to decline when they were brought on to the farms’ enclosed pastures and rise when they were returned to the open fell, where the radiocaesium content of vegetation has remained higher than on the pastures.
URL: http://www.sciencedirect.com/science/article/pii/0007193589900730
- Title: Long-term study on the transfer of 137Cs and 90Sr from Chernobyl-contaminated soils to grain crops
Author: Krouglov, S.V. / Filipas, A.S. / Alexakhin, R.M. / Arkhipov, N.P.
Reference: Journal of Environmental Radioactivity, 34 (3), p.267-286, Jan 1997
doi: 10.1016/0265-931X(96)00043-4
Keywords:
Abstract: The level of 137Cs and 90Sr transfer to four grain crops and the change in transfer with time have been studied on two soils contaminated with fragments of nuclear fuel released during the Chernobyl accident. Field experiments were carried out in 1987–1994 inside the heavily contaminated zone around Chernobyl Nuclear Power Plant.
URL: http://www.sciencedirect.com/science/article/pii/0265931X96000434
- Title: Effects of radioactive fallout on soil animal populations in the 30 km zone of the Chernobyl atomic power station
Author: Krivolutzkii, D.A. / Pokarzhevskii, A.D.
Reference: Science of The Total Environment, 112 (1), p.69-77, Feb 1992
doi: 10.1016/0048-9697(92)90239-O
Keywords:
Abstract: Studies were carried out during July and September 1986, April 1987, and October 1988. Radioactive fallout after the Chernobyl atomic power station (APS) accident induced catastrophic effects on populations of small pine-litter faunae within the 3 km zone around the station. Effects on soil faunae were not so marked due to shielding by the soil, or on litter faunae at the edge of the 30 km zone due to distance from the source.
URL: http://www.sciencedirect.com/science/article/pii/004896979290239O
- Title: Transfer of 131I to sheep milk from vegetation contaminated by Chernobyl fallout
Author: Howard, B.J. / Beresford, N.A. / Mayes, R.W. / Lamb, C.S.
Reference: Journal of Environmental Radioactivity, 19 (2), p.155-161, Jan 1993
doi: 10.1016/0265-931X(93)90074-H
Keywords:
Abstract: he transfer of 131I to sheep milk was measured in a controlled feeding experiment using herbage recently contaminated by fallout from the Chernobyl accident. The transfer coefficient (fm) of131I from the Chernobyl-contaminated herbage was 0·29±0·017 day litre−1. The daily proportion of 131I intake which was secreted in milk was 56±0·035%. This is an order of magnitude higher than for cattle and agrees with the higher transfer of stable iodine from plasma to milk which occurs in sheep and goats.
URL: http://www.sciencedirect.com/science/article/pii/0265931X9390074H
- Title: Transfer of 137Cs from water to fish is not linear in two northern lakes
Author: Tuovinen, Tiina S. / Saengkul, Chutarat / Ylipieti, Jarkko / Solatie, Dina / Juutilainen, Jukka
Reference: Hydrobiologia, 700 (1), p.131-139, Jan 2013
doi: 10.1007/s10750-012-1224-8
Keywords: Radioecology, Transfer factor, Linearity assumption, Trophic transfer, 137Cs, Aquatic
Abstract: Empirical data on the behavior of radionuclides in the biosphere are needed for validating radioecological models. In this study, data collected from two lakes in Northern Finland were used to investigate the transfer of 137Cs from lake water into fish during a 20-year period after the Chernobyl nuclear power plant accident. The results indicated that transfer of 137Cs in the food chains investigated is nonlinear: the water-to-fish concentration ratios (CRs) decreased with increasing 137Cs concentration in water.
URL: http://link.springer.com/article/10.1007%2Fs10750-012-1224-8
- Title: Radionuclide content in lichen thallus in the forests adjacent to the Chernobyl atomic power plant
Author: Biazrov, L.G.
Reference: Science of The Total Environment, 157, p.25-28, Dec 1994
doi: 10.1016/0048-9697(94)90561-4
Keywords: Radionuclides; Lichens; Thalli; Chernobyl
Abstract: The concentrations of 106Ru, 134Cs, 137Cs, and 144Ce in thalli of lichens Hypogymnia physodes and Cladina mitis, in the bark of pine tree Pinus silvestris are very high in the immediate vicinity of the Chernobyl atomic power plant. They decrease with increasing distance from the centre of the accident. However, even outside the 30-km zone of population evacuation, they surpass concentrations of these radionuclides from global fallout by hundreds of times.
URL: http://www.sciencedirect.com/science/article/pii/0048969794905614
- Title: Chemical fractionation of radioactive caesium in airborne particles containing bomb fallout, chernobyl fallout and atmospheric material from the sellafield site
Author: Hilton, J. / Cambray, R.S. / Green, N.
Reference: Journal of Environmental Radioactivity, 15 (2), p.103-111, Jan 1991
doi: 10.1016/0265-931X(91)90046-I
Keywords:
Abstract: Airborne particulate material was collected at Didcot (UK) in June 1959, a period of elevated atmospheric 137Cs concentrations due to atmospheric weapons testing; in May 1986, during the peak of Chernobyl deposition; and in 1987, from a location close to the Sellafield reprocessing plant. The samples were selectively extracted chemically in an attempt to identify the different forms of radiocaesium. Approximately 70% of the Chernobyl material was found to be water-soluble, compared to only 8% of the weapons fallout and 50% of the Sellafield material.
URL: http://www.sciencedirect.com/science/article/pii/0265931X9190046I
- Title: Chernobyl nuclear accident hydrologic analysis and emergency evaluation of radionuclide distributions in the Dnieper River, Ukraine, during the 1993 summer flood
Author: Voitsekhovitch, O.V. / Zheleznyak, M.J. / Onishi, Y.
Reference: Jun 1994
doi: 10.2172/10168428
Keywords:
Abstract: This report describes joint activities of Program 7.1.F, “Radionuclide Transport in Water and Soil Systems,“ of the USA/Commonwealth of Independent States (CIS) Joint Coordinating Committee of Civilian Nuclear Reactor Safety to study the hydrogeochemical behavior of radionuclides released to the Pripyat and Dnieper rivers from the Chernobyl Nuclear Power Plant in Ukraine. These joint activities included rapid evaluation of radionuclide distributions in the Pripyat and Dnieper river system and field data evaluation and modeling for the 1993 summer flood to assist the Ukrainian government in their emergency response during the flood.
URL: http://www.osti.gov/bridge/product.biblio.jsp?query_id=2&page=0&osti_id=10168428