Title: Long-term 137Cs contamination of mushrooms following the Chernobyl fallout
Author: D. Mascanzoni
Reference: Journal of Radioanalytical and Nuclear Chemistry July 2001, Volume 249, Issue 1, pp 245-249
DOI: 10.1023/A:1013263114576
Keywords: 137Cs, contamination, mushrooms, Europe, Sweden
Abstract: In the aftermath of the Chernobyl accident high concentrations of 137 Cs were found in mushrooms in several European countries and in Sweden. Two edible mushrooms species were selected for a long-term investigation in order to evaluate the 137Cs contamination over a long time. Samples of Suillus variegatus and Cantharellus spp. were collected from 1986to 1998 and their 137 Cs contents assessed. The results show that the activity of 137Cs remained more or less constant in Suillus variegatus, while it increased in Cantharellus spp. This reflects the forest ecosystem of the mushrooms, where nutrient-poor substrates, rich in organic substance and with high pH maintain 137Cs available for uptake. A decay-correction of the time distribution shows that radioactive decay appears to be the main factor affecting the content of 137Cs in mushrooms, at least in the medium term.
ＵＲＬ：http://link.springer.com/article/10.1023/A%3A1013263114576
Title: Dry, wet and cumulative fallout and milk contamination in Bratislava (Czecho-Slovakia) after the Chernobyl accident
Author: V. Koprda
Reference: Journal of Radioanalytical and Nuclear Chemistry 19 November 1990, Volume 146, Issue 5, pp 323-331
DOI: 10.1007/BF02164235
Keywords: milk contamination, Slovakia
Abstract: The total γ-radioactivity of dry, wet and cumulative fallout and the radioactivity of cow milk was measured in Bratislava in the first month after the Chernobyl accident. The obtained results are in good agreement with the results of the monitoring net in Slovakia.
ＵＲＬ：http://link.springer.com/article/10.1007/BF02164235
Title: Radioactive pollution of Turkish biotas one year after the Chernobyl accident
Author: · H. Akçay, · G. Ardisson
Reference: Journal of Radioanalytical and Nuclear Chemistry 1 November 1988, Volume 128, Issue 4, pp 273-281
DOI: 10.1007/BF02166951
Keywords: Radioactive pollution, Turkey, biota
Abstract: Long-lived fission radionuclides spread out after the Chernobyl accident have been measured in samples collected from the Black Sea and at the Aegean coasts of Turkey between June 15 and September 15, 1987. Nondestructive analysis was performed using high resolution γ-spectroscopy. The activity remaining 16 months after the event was found to be enhanced in coniferous needles as well as in lichens, while foodstuff did not show any appreciable contamination. The relatively high106Ru/134Cs and144Ce/134Cs ratios compared to those found in analogous samples from Southern Europe, might result from a fractionation between refractory and volatile elements.
ＵＲＬ：http://link.springer.com/article/10.1007/BF02166951
Title: Radiation induced cardiac valve disease in a man from Chernobyl
Author: Bose AS, Shetty V, Sadiq A, Shani J, Jacobowitz I.
Reference: J Am Soc Echocardiogr. 2009 Aug;22(8):973.e1-3.
doi: 10.1016/j.echo.2009.03.027.
Keywords: Radiation-induced valve disease; Aortic stenosis; Mitral regurgitation
Abstract: A young man presented with a new heart murmur. History revealed that the patient was from Ukraine, which was affected by the Chernobyl nuclear plant explosion in 1986. Physical examination revealed murmurs of mitral regurgitation and aortic stenosis. Transesophageal echocardiography revealed severely calcified mitral and calcified tricuspid aortic valves with mitral and aortic regurgitation and aortic stenosis. Following valve replacement surgery, pathologic examination of the valves showed severe dystrophic calcifications and changes suggestive of a chronic inflammatory process such as radiation-induced valve disease. In the absence of another etiology explaining such severe valve disease in a young man, it can only be surmised that heavy radiation exposure from the nuclear plant caused this significant valve damage.
ＵＲＬ：http://www.ncbi.nlm.nih.gov/pubmed/19647162
Title: Cytogenetic Effects of Radiation on Agricultural Plants Observed in the Chernobyl region during the First Years after the Accident
Author: Stanislav A. GERASKIN, Vladimir G. DIKAREV, Yevgenia Ya. ZYABLITSKAYA, Alla A. OUDALOVA and Yevgeniy V. SPIRIN
Reference: Всероссийский Научно-Исследовательский Институт Сельскохозяйственной Радиологии и Агроэкологии
Keywords: cytogenetic effects, radiation, agricultural plants, first years after the accident, Belarus
Abstract: The cytogenetic consequences of radioactive contamination by the fallout after the accident at the Chernobyl NPP in 1986 to agricultural crops have been studied.
ＵＲＬ：http://www.rri.kyoto-u.ac.jp/NSRG/reports/kr79/kr79pdf/Geraskin.pdf
Title: Chromosomal Aberrations in Blood Lymphocytes of the Residents of 30-km Chornobyl NPP Exclusion Zone
Author: Larysa BEZDROBNA, Tetyana TSYGANOK, Olena ROMANOVA, Larysa TARASENKO, Volodymyr TRYSHYN and Ludmila KLIMKINA
Reference: Institute for Nuclear Research, National Academy of Science of Ukraine
Keywords: lymphocytes, Chernobyl exclusion zone, chromosomal aberrations, Ukraine
Abstract: A comparative сytogenetic examination of 33 self-settlers in the 30 km ChNPP Exclusion Zone and 31 residents in villages of Yahotyn district, Kyiv region was carried out in 1998-99.
ＵＲＬ：http://www.rri.kyoto-u.ac.jp/NSRG/reports/kr79/kr79pdf/Bezdrobna.pdf
Title: Analysis of Chromosome Aberrations in Human Lymphocytes after Accidental Exposure to Ionizing Radiation
Author: Galina SNIGIRYOVA and Vladimir SHEVCHENKO
Reference: Russian Scientific Center of Roentgeno-Radiology, MOH RF, N.I. Vavilov Institute of General Genetics, RAS
Keywords: chromosomes, ionizing radiation, liquidators
Abstract: Analysis of the results of cytogenetic examination and reconstruction of irradiation doses by the frequency of chromosome aberrations in the liquidators of the consequences of the Chernobyl NPP accident.
URL：http://www.rri.kyoto-u.ac.jp/NSRG/reports/kr79/kr79pdf/Snigiryova.pdf
Title: Content of Radionuclides of Chernobyl Origin in Food Products for the Belarusian Population
Author: Vladimir P. MATSKO and Tetsuji IMANAKA
Reference: Research Reactor Institute, Kyoto University, July 2002
Keywords: Belarus, food, population, radionuclides
Abstract: Recent data on radionuclide contents of Chernobyl origin in food products and drinking water for the Belarusian population are reviewed. Strontium-90 and Cesium-137 are main radionuclides contributing to internal irradiation to the population. Contamination levels in food products from the social sector of agriculture (collective farms, agricultural co-operatives) are found to be generally below the current legal admissible level of RAL-99 that are defined to make internal dose of the population less than 1 mSv/yr. On the other hand, exceedings of RAL-99 are often found in food products from the private sector, especially in settlements of Gomel region where the contamination is the most serious in Belarus. Special attention should be paid to the non-farm products in the contaminated areas: mushrooms, berries, fish and meat of wild animals. For example, about 37,000 Bq/kg of 137Cs in fresh mushroom was registered in a settlement of Gomel region, which corresponds to 100 times of RAL-99 values. Concerning drinking water, the situation is quite good and no execeedings have been registered for the last 10 years.
ＵＲＬ：http://www.rri.kyoto-u.ac.jp/NSRG/reports/kr79/KURRI-KR-79.htm
Title: Radioactive Contamination of Food in Stepanivka Village, Zhytomyr Region, Ukraine: in 1992 and in 2001
Author: Volodymyr TYKHYY
Reference: Research Reactor Institute, Kyoto University, July 2002
Keywords: contamination, food, Zhytomir region, Ukraine
Abstract: Two series of measurements of radioactive contamination in food samples were performed in 1992 and in 2001 in a village contaminated by the Chernobyl accident. The village, Stepanivka is located 120 km to the west of Chernobyl NPP and has a typical level of Cs-137 surface contamination around that area (3 – 5 Ci/km2). The study was performed by the Independent Environmental Laboratory in Kyiv, jointly founded by the Ukrainian NGO “Green World”, Greenpeace International and the International Renaissance Foundation. It is shown that the Cs-137 contamination in milk in 2001 became 9 times lower than in 1992, while the Cs-137 contamination in wild mushrooms and berries remained at the same level. Annual intake of Cs-137 by the people in Stepanivka through food products and water was about 3 times lower in 2001 than in 1992. On the contrary to the trend of Cs-137, activity of Sr-90 in milk and dried berries was significantly higher in 2001 than in 1992.
ＵＲＬ：http://www.rri.kyoto-u.ac.jp/NSRG/reports/kr79/KURRI-KR-79.htm
Title: The Chernobyl Reactor: Design Features and Reasons for Accident
Author: Mikhail V. MALKO
Reference: Research Reactor Institute, Kyoto University, July 2002
Keywords: reasons, Chernobyl
Abstract: The report describes the main features of the Chernobyl reactor and possible reasons of the accident that happened on 26 April 1986. Analysis of scientific results established after the accident demonstrates that shortcomings in the design, and freak infringements of safety regulations for the construction as well as inadequate documentation for reactor operation were the main reason of the Chernobyl accident. Various scenarios proposed for this accident are also analyzed in the report. It is concluded that a very high probability of the nuclear explosions at the reactor of the Unit 4 of the Chernobyl accident exists. The power of it could be equivalent to 200 tons of the trinitrotoluene(TNT).
ＵＲＬ：http://www.rri.kyoto-u.ac.jp/NSRG/reports/kr79/KURRI-KR-79.htm
