Abstract
The concentration of Rn daughters in outdoor air in Montreal was measured 222 times over a 1 yr period from April 1988 to March 1989. The values measured display a mean of 4.4 Bq m−3, a median of 2.6 Bq m−3, a mode of 2.2 Bq m−3 and a standard deviation of 4.4 Bq m−3. The concentrations show a pronounced seasonal variation. They are highest in summer and lowest in winter. It is believed that this behavior is due to the cold climate. The histogram of concentrations has a coefficient of skewness of 2.3 and a coefficient of kurtosis of 9.7.
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References
Atomic Energy Control Board: 1980, ‘Guidelines for the Measurement of Airborne Rn Daughters in Mines’, Regulatory Document R-4.
Colle, R.: 1980, `The Physics and Interaction Properties of Rn and its Progeny, in Rn in Buildings, NBS Spec, Publ. 581, Gaithersburg, U.S.A., pp. 1–18.
Environmental Protection Agency: 1986, A Citizen's Guide To Rn. EPA-86-004.
George, A. C. and Breslin, A. J.: 1980, ‘The Distribution of Ambient Rn and Rn Daughters in Residential Buildings in the New-Jersey New-York Area’, in Natural Radiation Environment III, Vol. 2, NTIS, Springfield, U.S.A., pp. 1272–1292.
Gold, S., Barkhau, H. W., Shleien, B., and Kahn, B.: 1964, in J. A. S. Adams and W. M. Lowder (eds), The Natural Radiation Environment, The University of Chicago Press, pp. 369–382.
Hofmann, W., Katz, R., and Zhang, G. X.: 1985, Zhonhua Fangshe Yixue Yu Fanghu Zarhi 5, 140.
Kletz, T. A.: 1980, AIEA Bull. 20, 2.
Kovach, E. M.: 1944, Trans. Am. Geophys. Union 64, 521.
Kusnetz, H. L.: 1956, Ind. Hygiene Quart. 17, 85.
Lindeken, C. L. and Petrock, I.: 1964, Health Phys. 10, 495.
Megumi, K. and Mamuro, T.: 1973, J. Geophys. Res. 78, 1804.
National Council on Radiation Protection and Measurements: 1984, ‘Evaluation of Occupational and Environmental Exposures to Rn and Rn Daughters in the United states’, Report No. 78, Bethesda, U.S.A.
Nishikawa, T. and Okabe, S.: 1988, Radiat. Prot. Dosim. 24, 93.
Spiegel, M. R.: 1975, Probability and Statistics, McGraw-Hill.
Tanner, A. B.: 1980, ‘Rn Migration in the Ground: A Supplementary Review’, in Natural Radiation Environment III, Vol. 1, NTIS, Springfield, U.S.A., pp. 5–56.
UNSCEAR: 1982, Ionizing Radiation: Sources and Biological Effects, United Nations, New York, U.S.A., Sales No. E.82.IX.8.
Wilkening, M. H.: 1959, J. Geophys. Res. 64, 521.
Wolfs, F., Hofstede, H., De Meijer, R. J. and Put, L. W.: 1984, Health Phys. 47, 271.
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Chah, B., Zikovsky, L. Seasonal variation of radon daughters in outdoor air in Montreal. Water Air Soil Pollut 51, 133–138 (1990). https://doi.org/10.1007/BF00211510
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DOI: https://doi.org/10.1007/BF00211510