タグ「90Sr」
Title: 90Sr, 238U, 234U, 137Cs, 40K and 239/240Pu in Emmental type cheese produced in different regions of Western Europe
Author: P. Froidevaux, , J.-J. Geering, L. Pillonel, J.-O. Bosset, J.-F. Valley
Reference: Journal of Environmental Radioactivity, Volume 72, Issue 3, 2004, Pages 287–298
DOI: http://dx.doi.org/10.1016/S0265-931X(03)00179-6
Keywords: Strontium-90; Cheese; Uranium isotopes; Milk-to-cheese transfer; Food authenticity
Abstract: A method is presented for the determination of 90Sr and uranium in Emmental type cheese collected in dairy plants from different European countries. Results display a significant correlation (r=0.708, Student t-test=6.02) between the 90Sr content of the cheese and the altitude of grazing. The highest 90Sr activity is 1.13 Bq kg−1 of cheese and the lowest is 0.29 Bq kg−1. Uranium activity is very low with a highest 238U value of 27 mBq kg−1. In addition, 234U/238U ratio shows a large enrichment in 234U for every location. Without any significant indication of the geographic origin of the cheese, this enrichment is believed to be due to the geological features of the pasture, soil and underground water. These results tend to prove that the contamination of milk by uranium originates principally from the water that the cows drink instead of the forage. This finding may have a great importance in models dealing with dairy food contamination by radionuclides following a nuclear accident. Also, the 90Sr content and to a lesser extent the 234U/238U ratio could be used to trace the authenticity of the origin of the cheese. 137Cs activity is lower than the detection limit of 0.1 Bq kg−1 in all the samples collected (n=20). Based on natural 40K activity in cheese (15–21 Bq kg−1), the decontamination factor for the alkaline cations from milk to cheese is about 20. Plutonium activity stays below the detection limit of 0.3 mBq kg−1.
ＵＲＬ：http://www.sciencedirect.com/science/article/pii/S0265931X03001796
Title: Studies of 90Sr presence in milk and commercial dairy products
Author: M. Kruk, J. Solecki
Reference: Journal of Radioanalytical and Nuclear Chemistry , November 2011, Volume 290, Issue 2, pp 325-332
DOI: 10.1007/s10967-011-1395-1
Keywords: 90Sr, Milk, Dairy products, Weighted effective doses
Abstract: The aim of this article was to present the studies of radiological level of some commercial dairy products in Mazovian, Kuyavian—Pomeranian and Lublin regions. They were carried out for 27 commercial dairy products such as two specimens of lean cottage cheese, three specimens of cottage cheese containing a limited percentage of fat, three specimens of fat cottage cheese, three specimens of milk containing 3.2% of fat, three specimens of milk containing 2.0% of fat, two specimens of sour cream containing 12% of fat, three specimens of sour cream containing 18% of fat, one specimen of 30% whipping cream, two specimens of homogenized (strawberry and vanilla) cheese, three specimens of hard rennet cheese, one specimen of powdered milk, one specimen of goat milk. For the given commercial dairy products there were calculated effective doses (μSv) obtained after consumption of 1 kg contaminated product for different age groups.
ＵＲＬ：http://link.springer.com/article/10.1007/s10967-011-1395-1
Title: Long Term Temporal Changes of 90Sr and 137Cs in Seawater, Bottom Sediment and Marine Organism Samples – from the Chernobyl Accident to Immediately after the Fukushima Accident –
Author: Shinji OIKAWA, Teruhisa WATABE, Hyoe TAKATA, Chiyoshi SUZUKI, Motokazu NAKAHARA, Jun MISONOO
Reference: BUNSEKI KAGAKU, Vol. 62 (2013) No. 6 p. 455-474
Doi:http://dx.doi.org/10.2116/bunsekikagaku.62.455
Keywords: radiochemistry, 90Sr, 137Cs, seawater, sediment, marine organism
Abstract: A radioactivity survey program was launched in 1983 to determine the background levels of artificial radionuclides, such as 90Sr and 137Cs in the marine environment off commercial nuclear power stations. In this paper, we report on the long-term temporal changes of 90Sr and 137Cs in seawater, bottom sediment and marine organism samples. Both 90Sr and 137Cs have been detected since the beginning of the program in the seawater samples.
ＵＲＬ：https://www.jstage.jst.go.jp/article/bunsekikagaku/62/6/62_455/_article/-char/ja/
Title: Doses and risks from the water use received by the population of southwest areas of Bryansk region
Author: Katkova M.N.
Reference: Journal: Radiation and Risk (Bulletin of the National Radiation and Epidemiological Registry), Year: 2008, Volume: 17, Issue: 1
Keywords: exposure dose, water use, risk, radionuclides of 90 Sr and 137Cs, Chernobyl accident
Abstract: In the present work the estimation of risk for the population of southwest areas of Bryansk region exposed to radiation fallout after Chernobyl accident is carried out. The life risk of disease for the population of the specified areas is estimated by a cancer through a dose received from water use. The basic ways of radionuclide receipt in an organism of inhabitants of southwest areas of Bryansk region on a water chain are: an external exposure from polluted flood-land of water body, consumption of water from the sources of the drinking water supply located in the polluted zone, and consumption of fish caught from a local water body. As object of research the population living in area of Lake Kozhanovskoe is accepted. The contribution of radionuclides o f9 Sr and 137Cs in a total dose from water use is estimated. Priority sources of risk for the population from water use to which it is necessary to pay special attention at carrying out of protective actions in the specified territories are revealed.
URL:http://cyberleninka.ru/article/n/dozy-i-riski-ot-vodopolzovaniya-poluchaemye-naseleniem-yugo-zapadnyh-rayonov-bryanskoy-oblasti
Title: Estimation of the ratio of 90Sr and 137Cs activities in the Chernobyl depositions in the territory of the Russian Federation
Author: Ermilov A.P., Ziborov A.M.
Reference: Journal: Radiation and Risk (Bulletin of the National Radiation and Epidemiological Registry), Year: 2001 Issue: 12
Keywords: contamination, cesium-137, strontium-90
Abstract: Correlative relationship between activities of 90Sr to 137Cs in condenses of the Chernobyl fallouts on April 26, 1986 was detected. The ratio was estimated with the use of data of the Institute of Global Climate and Ecology of the State Committee of Hydrometeorology and Russian Academy of Sciences. The data derived from measurements of 90Sr, 137Cs and 239+240Pu in soil samples taken in Bryansk, Kaluga, Oriol and Ryazan regions in 1992. The contribution of the condensation of 90Sr in the soil samples of the Chernobyl fallout in Russia was found to be governing factor when specific activity of 137Cs was > 2000 Bq/kg.
URL:http://cyberleninka.ru/article/n/otsenka-otnosheniya-aktivnosti-90sr-k-aktivnosti-137cs-v-chernobylskih-vypadeniyah-na-territorii-rossiyskoy-federatsii
Author: Slinchak A.I.
Reference: Journal: Journal of the Pskov State University. Series: Natural and physical and mathematical sciences, Year: 2007, Issue 2
Keywords: radioactive contamination, iodine, cesium-137, strontium-90
Abstract: [… The dynamics of radioactive contamination of the affected areas are divided into four periods:
1 – April-July 1986, the condition of radiation contamination was constituted, mainly short-lived radionuclides such as iodine-131, iodine-133, iodine-135, lanthanum-140, barium-140, molybdenum-99, tellurium-132, and neptunium-239; radionuclides with a half-life of 1 year; 2 – 1986-1987., Along with the long-lived radionuclides, were present, in appreciable quantities, radionuclides serenium-144, ruthenium-106, cesium-134, and curium-242; 3 – Since 1988 the radioactive situation has been constituted mainly by radionuclides cesium-137 and strontium-90, and in the evacuation zone; plutonium-238, plutonium-239, plutonium-240 and plutonium-241; 4 – contamination of soil, except those specified in the third period of radionuclides, will be determined by the daughter isotope Pu-241 – americium-241. ..]
URL: http://cyberleninka.ru/article/n/ekologicheskie-problemy-chernobylya
Title: Accumulation and distribution of radionuclides in forest ecosystems of the Krasnoyarsk region
Author: Rudenko, Lyudmila Nikolayevna
Reference: Krasnoyarsk, 2003
Keywords: dynamics, pattern of accumulation, distribution of radionuclides, cesium-137, strontium-90, hardwoods, Krasnoyarsk region
Abstract: The purpose of the thesis was to conclude from the scientific and methodological rationale, the study of the dynamics and patterns of accumulation and distribution of radionuclides cesium-137 and strontium-90 among the hardwood of the Krasnoyarsk region.
URL:http://www.dissercat.com/content/nakoplenie-i-raspredelenie-tekhnogennykh-radionuklidov-v-lesnykh-ekosistemakh-krasnoyarskogo
Title: ORGANIZATIONAL-LEGAL PROBLEMS OF MINIMIZING THE CONSEQUENCES OF THE CHERNOBYL DISASTER WITHIN THE UNION STATE OF BELARUS AND RUSSIA
Author: Demichev D.M.
Reference: “Legal science” 2012 No.3
Keywords: CHERNOBYL ACCIDENT, MINIMIZATION OF CONSEQUENCES OF ACCIDENT, RADIOACTIVE POLLUTION OF TERRITORIES, RADIONUCLIDES, RADIOACTIVE SUBSTANCES: CAESIUM-137, STRONTIUM-90, PLUTONIUM-239, PARTICIPANTS OF ELIMINATION OF CONSEQUENCES OF FAILURE ON THE CHERNOBYL NUCLEAR POWER STATION, UNION OF BELARUS AND RUSSIA, UNION STATE, REHABILITATION OF THE POLLUTED TERRITORIES
Abstract: in article social, economic, medical and legal consequences of accident on the Chernobyl NPP in Republic of Belarus, the Russian Federation reveal, the role of state authorities in realization of joint programs on overcoming of the specified consequences within the Union State reveals, offers on improvement of functioning of the mechanism of rehabilitation of the polluted territories locate.
URL: http://cyberleninka.ru/article/n/organizatsionno-pravovye-problemy-minimizatsii-posledstviy-chernobylskoy-katastrofy-v-ramkah-soyuznogo-gosudarstva-belarusi-i-rossii
Title: The quality of milk in cows within polluted areas with cesium-137 and strontium-90 (Chernobyl disaster)
Author: Kalinin, Boris Nikolayevich
Reference: Moscow, 2000
Keywords: cesium-137, strontium-90, milk, cows, Klintsovsky district, Bryansk region, radioactive contamination
Abstract: The aim of the present study was to determine the dynamics of the daily excretion of cesium-137 and strontium-90 from milk cows on farms “Victory” (Pobeda) and “Dawn” (Rassvet) Klintsovsky region in Bryansk region. According to Pasternak A.D. these farms are located in the area of radioactive contamination with the level 1-5 Ci/km2 cesium-137 and 0.15-3 Ci/km2 Sr-90.
URL:http://www.dissercat.com/content/kachestvo-moloka-u-korov-v-usloviyakh-zagryazneniya-territorii-tseziem-137-i-strontsiem-90-v
Title: Animal health characteristics of eggs and chicken meat contaminated with strontium-90 from the Chernobyl accident
Author: Okushko, Olga Mikhailovna
Reference: Moscow 2003
Keywords: veterinary-sanitary examination, poultry products, strontium-90 contamination
Abstract: The aim of this work was to study the effect of ionizing radiation within areas of different density of the polluted territories, on the body of chickens, their egg production, biological properties of eggs, survival among chicks and the veterinary-sanitary characteristics of poultry reared under the free-range conditions in the individual areas of the Bryansk region.
URL:http://www.dissercat.com/content/veterinarno-sanitarnaya-kharakteristika-yaits-i-myasa-kur-zagryaznennykh-strontsiem-90-avari
