Radioactive elements in atmospheric precipitations of the Western Siberia
作者： Mikhail Melgunov , Kseniya Mezina , Boris Sherbov , Yuliya Vosel , Inna Zhurkova
DOI: 10.1051/E3SCONF/20199810003
关键词:
摘要: The radionuclide composition of the atmospheric precipitations (rain and snow) fell out on the territory of the South of the Western Siberia in 2016-2017 was studied. It is shown that, the maximum of deposition of 7Be and 210Pb were observed in a foothill zone (618 and 171 Bq/m2), the minimum in the Alpine zone (104 and 27 Bq/m2), for the forest-steppe zone these values are 237-340 Bq/m2 and 73-93 Bq/m2. Deposition density of 137Cs in comparison with 210Pb and 7Be is small and does not exceed 1 Bq/m2. Average values of total specific activities of 210Pb and 7Be in rain waters are 242 and 2434 mBq/l, in the snowmelt 506 and 1611 mBq/l. 7Be/210Pb activity ratio in rain waters more than three times higher, than in snowmelt: 10,1 to 3,2. The highest values of 7Be/210Pb activity ratios are observed in the finest fraction (<0.45 µm) of the suspended matter: 19 in rain and 10 in snowmelt waters.
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sci-hub.se 参考文章(28)
Carlos M. Alonso-Hernández, Yasser Morera-Gómez, Héctor Cartas-Águila, Aniel Guillén-Arruebarrena, Atmospheric deposition patterns of 210Pb and 7Be in Cienfuegos, Cuba Journal of Environmental Radioactivity. ,vol. 138, pp. 149- 155 ,(2014) , 10.1016/J.JENVRAD.2014.08.023
A. Aba, A. M. Al-Dousari, A. Ismaeel, Depositional characteristics of 7Be and 210Pb in Kuwaiti dust Journal of Radioanalytical and Nuclear Chemistry. ,vol. 307, pp. 15- 23 ,(2016) , 10.1007/S10967-015-4129-Y
E. Gordo, E. Liger, C. Dueñas, M.C. Fernández, S. Cañete, M. Pérez, Study of 7Be and 210Pb as radiotracers of African intrusions in Malaga (Spain) Journal of Environmental Radioactivity. ,vol. 148, pp. 141- 153 ,(2015) , 10.1016/J.JENVRAD.2015.06.028
Stefan Rehfeld, Martin Heimann, Three dimensional atmospheric transport simulation of the radioactive tracers 210Pb, 7Be, 10Be, and 90Sr Journal of Geophysical Research. ,vol. 100, pp. 26141- 26161 ,(1995) , 10.1029/95JD01003
S.R. Daish, A.A. Dale, C.J. Dale, R. May, J.E. Rowe, The temporal variations of 7Be, 210Pb and 210Po in air in England Journal of Environmental Radioactivity. ,vol. 84, pp. 457- 467 ,(2005) , 10.1016/J.JENVRAD.2005.05.003
M. Krmar, K. Wattanavatee, D. Radnović, J. Slivka, T. Bhongsuwan, M.V. Frontasyeva, S.S. Pavlov, Airborne radionuclides in mosses collected at different latitudes Journal of Environmental Radioactivity. ,vol. 117, pp. 45- 48 ,(2013) , 10.1016/J.JENVRAD.2011.08.009
Liu Jiwen, Valeriia N. Starovoitova, Douglas P. Wells, Long-term variations in the surface air 7Be concentration and climatic changes. Journal of Environmental Radioactivity. ,vol. 116, pp. 42- 47 ,(2013) , 10.1016/J.JENVRAD.2012.08.015
Bertil R.R. Persson, Elis Holm, (7)Be, (210)Pb, and (210)Po in the surface air from the Arctic to Antarctica. Journal of Environmental Radioactivity. ,vol. 138, pp. 364- 374 ,(2014) , 10.1016/J.JENVRAD.2014.01.008
D. Lal, P.K. Malhotra, B. Peters, On the production of radioisotopes in the atmosphere by cosmic radiation and their application to meteorology Journal of Atmospheric and Terrestrial Physics. ,vol. 12, pp. 306- 328 ,(1958) , 10.1016/0021-9169(58)90062-X
M. Baskaran, Glenn E. Shaw, Residence time of arctic haze aerosols using the concentrations and activity ratios of 210Po, 210Pb and 7Be Journal of Aerosol Science. ,vol. 32, pp. 443- 452 ,(2001) , 10.1016/S0021-8502(00)00093-8