タグ「134Cs」
Title:Average radiation doses to residents of the South Ukraine caused by the accident at the Chernobyl NPP
Author: Grigorieva L.I.
Reference: Journal: Radiation and Risk (Bulletin of the National Radiation and Epidemiological Registry), Year: 2011 Volume: 20 Issue: 3
Keywords:reconstruction, inhalation and oral intake of 131І, radioisotopes of cesium (137Cs; 134Cs), noble radioactive gases (85mKr; 133mXe), Effective dose, 06Ru, 103Ru, 141Ce, 144Ce, 95mNb, 132Te, 140Ln
Abstract: Results of retrospective reconstruction of average individual radiation doses got by residents of the South Ukraine due to exposure to radioactive fallouts from the Chernobyl NPP are given in the article. In the work radiometry, spectrometry and dosimetry data collected in the territory of Nikolev, Odessa, Kirovograd oblasts and Autonomous Republic of Crimea were used. The study was carried out by the Nikolaev Research Laboratory Larani in 1986 and later.
URL:http://cyberleninka.ru/article/n/srednie-dozy-oblucheniya-zhiteley-yuga-ukrainy-obuslovlennye-avariey-na-chaes
Title: Radioactive cesium (134Cs and 137Cs) content in human placenta after the Fukushima nuclear power plant accident
Author: Makoto Suzuki, Hiroshi Terada, Nobuya Unno, Ichiro Yamaguchi, Naoki Kunugita, Hisanori Minakami
Reference: Journal of Obstetrics and Gynaecology Research, 2 JUL 2013
DOI: 10.1111/jog.12071
Keywords: cesium;human placenta;nuclear power plant accident
Abstract: The degree of contamination with radioactive cesium (134Cs and 137Cs) in the human placenta after the accident at Fukushima nuclear power plant (FNP), which occurred on 11 March 2011, has not been assessed. Material and Methods:134Cs and 137Cs contents were determined in 10 placentas from 10 women who gave birth to term singleton infants during the period between October 2011 and August 2012 using high-purity germanium detectors for gamma ray spectrometry. Five women resided within 50 km of FNP (neighbor group) and gave birth by the end of February 2012, while the other five women resided within 210–290 km of FNP (distant group) and gave birth in July and August 2012.
URL: http://onlinelibrary.wiley.com/doi/10.1111/jog.12071/abstract
Title: Post-Chernobyl investigations of radiocaesium activity concentrations in Adriatic Sea pilchards
Author: Zdenko Franić, Branko Petrinec1, Gina Branica, Gordana Marović, Dragan Kubelka and Zrinka Franić
Reference: Radiat Prot Dosimetry (2012) 151 (2): 314-322.
DOI: 10.1093/rpd/ncs012
Keywords: 134Cs, 137Cs, Adriatic Sea
Abstract: Investigations in the post-Chernobyl period (1986–2009) of radiocaesium activity concentrations in Adriatic pilchards are presented. Compared with pre-Chernobyl period, the Chernobyl nuclear accident caused increase of 137Cs activity concentrations in pilchards. By fitting the measured 137Cs activity concentrations to the theoretical curve was estimated to be 1.5±0.4 y for 1986–90 and 5.8±0.4 y for 1991–2009 and the bimodal behaviour for the ecological half-life of 137Cs in pilchards has been observed. Estimated annual effective doses received by 134Cs and 137Cs intake due to consumption for an adult member of Croatian population are small. Collective dose for the 1986–2009 period was 4.9+0.3 person-Sv. The observed 134Cs/137Cs activity ratio in pilchards was similar to the ratio that has been found in other environmental samples. The concentration factor for pilchards was roughly estimated to be 93.7±39.2 l kg−1, which is consistent with the values observed elsewhere.
URL: http://rpd.oxfordjournals.org/content/151/2/314.full.pdf+html
Author: Mel’chenko A.I., Zhivchikov V.G., Mel’chenko E.A.
Reference: Gazette “ТРУДЫ КУБАНСКОГО ГОСУДАРСТВЕННОГО АГРАРНОГО УНИВЕРСИТЕТА“ (Proceedings of Kuban State Agrarian University), 2011
ISSN: 1999-1703
DOI: 504.53.062.4
Keywords: 134cs, 238u, accumulation, agricultural products
Abstract: Article on detailed experiments, as well as its prevention, on accumulation of radionuclides 134cs and 238u in bracts and cabbages.
URL: http://elibrary.ru/item.asp?id=17050712
Title: Long-term investigations of radiocaesium activity concentrations in carp in North Croatia after the Chernobyl accident
Author: Zdenko Franić, Gordana Marović
Reference: Journal of Environmental Radioactivity, Volume 94, Issue 2, May 2007, Pages 75-85
DOI: http://dx.doi.org/10.1016/j.jenvrad.2007.01.001
Keywords: Carp; Concentration factor; 137Cs; 134Cs; Chernobyl accident; Dose; Fish consumption
Abstract: Long-term investigations of radiocaesium activity concentrations in carp in the Republic of Croatia are presented. The radiocaesium levels in carp decreased exponentially and the effective ecological half-life of 137Cs was estimated to be about 1 year during 1987–2002 and 5 years during 1993–2005.
The observed 134Cs:137Cs activity ratio in carp was found to be similar to the ratio observed in other environmental samples.
The concentration factor for carp (wet weight) was estimated to be 128 ± 74 L kg−1, which is in reasonable agreement with model prediction based on K+ concentrations in water.
Estimated annual effective dose received by adult members of the Croatian population due to consumption of carp contaminated with 134Cs and 137Cs are small: per capita dose from this source during 1987–2005 was estimated to be 0.5 ± 0.2 μSv.
Due to minor freshwater fish consumption in Croatia and low radiocaesium activity concentrations in carp, it can be concluded that carp consumption was not a critical pathway for the transfer of radiocaesium from fallout to humans after the Chernobyl accident.
URL: http://www.sciencedirect.com/science/article/pii/S0265931X07000252
Title: Efficiency of decontaminating agricultural plants from radioactive contamination, depending on their specific contamination by the way of irrigation with water containing radionuclides
Author: Mel’chenko A.I., Mel’chenko E.A., Mel’chenko V.A., Sukhomlinova A.G.
Reference: Proceedings of Kuban State Agrarian University, (Russian: “ТРУДЫ КУБАНСКОГО ГОСУДАРСТВЕННОГО АГРАРНОГО УНИВЕРСИТЕТА“), 1(34), 2012:166-172.
ISSN: 1999-1703
Keywords: radionuclide accumulation, agricultural products, 134Cs; 65Zn (zinc); 115m Cd (cadmium); 238U (uranium)
Abstract: Describes diverse conditions of accumulation of radionuclides in agricultural plants, depending on various ways of irrigation with contaminated water on the plants: by rain, furrow, drip and intersoil. Two ways of decontaminating plants: 1- washing after contamination, 2- cleaning. Experiments with radionuclides 134Cs, 65Zn, 115m Cd and 238U.
URL: http://elibrary.ru/item.asp?id=17391353
Title: Nuclear weapon and Chernobyl debris in the troposphere and lower stratosphere
Author: Ludwika Kownacka, Zbigniew Jaworowski
Reference: Science of The Total Environment, Volume 144, Issues 1–3, 29 April 1994, Pages 201-215
DOI: http://dx.doi.org/10.1016/0048-9697(94)90439-1
Keywords: Radionuclides; Troposphere; Stratosphere; Nuclear tests; Chernobyl
Abstract: High altitude aircraft sampling of aerosols has been carried out at 4–7 levels up to 15 km over Poland. From 1973 to 1991 a total of 102 vertical concentration profiles of 90Sr, 134Cs and 137Cs, and 83 profiles of 144Ce were determined. One year after the sub-megaton nuclear test in 1980, 137Cs was almost completely removed from the stratosphere. The Chernobyl debris was found in the stratosphere from the third day after the accident until the end of 1991. In May 1986 the concentration of 134Cs and 137Cs at stratospheric altitudes reached about 0.5% of that between the ground level and 3 km. Residence times of Chernobyl radiocesium in the lower stratosphere systematically increased between 1987 and 1991, in variance with those of the debris from nuclear tests. The vertical concentration profiles and the long residence times of radiocesium indicate that the non-violent meteorological processes were transporting the Chernobyl debris into the lower stratosphere, immediately and long after the accident. We postulate that the same quiescent processes transport vast amounts of resuspended particulate organics from the surface of land and sea into high altitudes, and may thus bear on the chemistry of the stratosphere.
URL: http://www.sciencedirect.com/science/article/pii/0048969794904391
Title: Radioactivity measurements in air over Europe after the Chernobyl accident
Author: Frank Raes, Giovanni Graziani, David Stanners, Franco Girardi
Reference: Atmospheric Environment. Part A. General Topics, Volume 24, Issue 4, 1990, Pages 909-916
DOI: http://dx.doi.org/10.1016/0960-1686(90)90293-V
Keywords: Chernobyl; air concentrations; LRT; Cs-134/Cs-137
Abstract: A comprehensive European data set of radioactivity in air caused by the accident at the Chernobyl nuclear power plant is presented. For the first 2 weeks after the beginning of the release, levels of particulate I-131, Cs-134 and Cs-137 (85 locations) and of total I-131 (10 locations) are given. All data are stored in a computerized data base. For the first time the passage of the Chernobyl cloud over Europe is mapped after re-averaging the time histories in each location to produce coherent daily concentrations. Cs-134/Cs-137 ratios were analyzed: the ‘European’ average ratio calculated from 1239 samples is 0.55, with a standard deviation of 0.25.
URL: http://www.sciencedirect.com/science/article/pii/096016869090293V
Title:Specific activity and activity ratios of radionuclides in soil collected about 20 km from the Fukushima Daiichi Nuclear Power Plant: Radionuclide release to the south and southwest.
Author: Tagami, Keiko / Uchida, Shigeo / Uchihori, Yukio / Ishii, Nobuyoshi / Kitamura, Hisashi / Shirakawa, Yoshiyuki
Reference: The Science of the total environment, 409 (22), p.4885-4888, Oct 2011
doi: http://dx.doi.org/10.1016/j.scitotenv.2011.07.067
Keywords: Radioactivity ratio; Fukushima Daiichi Nuclear Power Plant; Soil; Cesium-137; Cesium-134; Iodine-131
Abstract: ► Soil samples were collected at about 20 km south of Fukushima Daiichi Nuclear Power Plant. ► The concentrations of 131I, 134, 136, 137Cs and 129mTe were obtained, but 103Ru was not. ► This suggests that noble gasses and volatile radionuclides predominated in the releases. ► Activity ratio of 134Cs/137Cs from the power plant to the south was abound 0.90.
URL: http://www.ncbi.nlm.nih.gov/pubmed/21906779?dopt=Abstract
Title: ACCUMULATION OF RADIOCESIUM BY MUSHROOMS IN THE ENVIRONMENT: A LITERATURE REVIEW AND IMAGE GALLERY
Author: Duff, M / Mary Ramsey, M
Reference: Journal of Environmental Radioactivity, 2006 Nov 05
Keywords: 54 ENVIRONMENTAL SCIENCES; CONTAMINATION; IMAGES; MUSHROOMS; SAMPLING; SOURCE TERMS; CESIUM 137; BIOLOGICAL ACCUMULATION; CESIUM 134
Abstract: During the last 50 years, a large amount of information on radionuclide accumulators or ‘sentinel-type’ organisms in the environment has been published. Much of this work focused on the risks of food-chain transfer of radionuclides to higher organisms such as reindeer and man. However, until the 1980’s and 1990’s, there has been little published data on the radiocesium ({sup 134}Cs and {sup 137}Cs) accumulation by mushrooms. This presentation will consist of a review of the published data for {sup 134,137}Cs accumulation by mushrooms in nature. The review will consider the time of sampling, sample location characteristics, the radiocesium source term and other aspects that promote {sup 134,137}Cs uptake by mushrooms. This review will focus on published data for mushrooms that demonstrate a large propensity for use in the environmental biomonitoring of radiocesium contamination. It will also provide photographs and descriptions of habitats for many of these mushrooms to facilitate their collection for biomonitoring.
URL: http://www.osti.gov/bridge/product.biblio.jsp?query_id=2&page=0&osti_id=895047
