Washout of Tritiated Water Vapor by Precipitation in the Vicinity of Wolsong Nuclear Power Plant Site

  • Kim, C.K. (Korea Institute of Nuclear Safety) ;
  • Lee, S.K. (Korea Institute of Nuclear Safety) ;
  • Rho, B.H. (Korea Institute of Nuclear Safety) ;
  • Park, G.J. (Kyungpook National University) ;
  • Kim, W. (Kyungpook National University) ;
  • Kang, H.D. (Kyungpook National University)
  • Published : 2003.12.30

Abstract

On a basis of the washout model and concentrations of anthropogenic tritium in rainwater around the Wolsong site, the washout coefficients of tritium by rainwater were calculated, and the validity of washout deposition model are estimated. As the result of that, the washout coefficients in 10 sampling stations around Wolsong site were in the range of $2.9{\times}10^{-5}\;-\;16{\times}10^{-5}\;s^{-1}$ with the mean value of $7.21{\times}10^{-5}\;s^{-1}$. The validity of the washout deposition model was confirmed by comparing the observed data with the calculated ones.

References

  1. United Nations Scientific Committee on the Effects of Atomic Radiation UNSCEAR 2000 report, Vol. I, United Nations, New York (2000)
  2. Jacob, T., Deposition of 85Kr and tritium deposition released from a nuclear fuel processing plant. Health Phys., Vol. 24, pp. 37-42 (1973)
  3. Tokuyama, H. and Oonishi, M. Precipitation washout of tritiated water vapor from a nuclear reactor, J. Environ. Radioactivity, Vol. 34, pp. 59-68 (1997)
  4. Papadopoulos, D., Konig, L.A, Langguth, K.G. and Fark, S. Contamination of precipitation due to tritium released into the atmosphere. Radiat. Prot. Dosim., 16, pp. 95-100 (1986)
  5. Bander, T.J., Renne, D.S. and Sandusky, W.F. An analysis of tritium releases to the atmosphere by a controlled thermonuclear reactor, In Proc. Int. Symp. On the Behaoior of Tritium in the Environment. San Francisco, 16-20 October IAEA, Vienna, Austria, pp. 125-137 (1978)
  6. Kim, C.K., Rho, B.H and Lee, K.J., Environmental tritium in the areas adjacent to Wolsong nuclear power plant, J. Environ. Radioactivity, Vol. 41, pp. 217-231 (1998)
  7. Ostlund H.G. and Mason A.S.: Atmospheric HT and HTO, I. Experimental Procedures and Tropospheric Data 1968-72, Tellus XXVI, 1-2, p. 91 (1974)
  8. Kim, C.K., Lee, S.K., Rho, B.H. and Lee, Y.G., Environmental distribution and behavior of 3H and 14C around Wolsong nuclear power plants, Health Physics, Vol. 78, 693-699 (2000)
  9. Straight R.J.: HT-HTO Sampling at the Nevada Test Site, Proc. Of IAEA/NEA International Symposium on the Behavior of Tritium in the Environment, October 16-20, 1978 in San Francisco, Califonia, IAEA-SM-232/87 (1979)
  10. Belot, Y. Tritium in Plants: A Review, Radiat. Prot. Dosm., 16; pp. 101-105 (1986)
  11. Chamberlain, A.C. and Eggleton, A.E.J., Washout of tritiated water vapor by rain, Int. J. Air Wat. Poll, Vol. 8, pp, 135-149 (1964)
  12. Gorman, D.J. and Wong, KY Environmental aspects of tritium from CANDU station releases. In Proc. Int. Symp. On the Behavior of Tritium in the Environment. San Francisco, 16-20 October IAEA, Vienna, Austria, pp. 623-634 (1978)
  13. Inoue, Y., Iwakura, T. and Miyamoto, K., Environmental aspects of tritium released into the atmosphere in the vicinity of nuclear facilities in Japan, National Institute of Radiological Sciences, Chiba, Japan, NIRS-M-52, pp 296-315 (1985)
  14. IAEA, Atmospheric dispersion in nuclear power plant siting, IAEA Safety Series, No. 50-SG-S3, IAEA, Vienna, Austria (1980)