DYNAMICS OF 137CS ACTIVITY IN THE SURFACE AIR IN THE FIRE SEASON
Abstract
The method of estimating the transfer of pollutants from forest fires in the radioactively contaminated areas is presented in the article. The method is based on a comparative analysis of climatic, forestry, and the long-term data of radiation monitoring. It is experimentally proved that the forest fires in the radioactively contaminated zones are an additional source of air contamination by radionuclides. It was found that the excess of the reference values of beta activity of 137Cs in the air possible during the crown fires and large ground fires on territories with the density of radioactive contamination above 555 kBa/m2.
About the Authors
А. DvornikBelarus
P h. D . ( Biol.), head of laboratory of modeling and minimization of antropogenic
risks
Y. Dvornik
Belarus
teacher (chemistry)
References
1. Kulan, A. (2006) ‟Seasonal 7Be and 137Cs activities in surface air before and after the Chernobyl event”, Journal of Environmental Radioactivity, vol. 90, pp. 140–150.
2. Bondar, Yu. I., Navumau, A., Nikitin, A., Brown, J. and Dowdall, M. (2014) ‟Model assessment of additional contamination of water bodies as a result of wildfires in the Chernobyl exclusion zone”, Journal of Environmental Radioactivity, no. 138, pp. 170–176.
3. Goldammer, J. G., Statheropoulos, M. and Meinrat, O. A. (2008) ‟Impacts of Vegetation Fire Emissions on the Environment, Human Health, and Security: A Global Perspective”, Developments in Environmental Science, vol. 8, pp. 3–36.
4. Usenya, V. V. (2002) Lesnye pozhary, posledstviya i bor’ba s nimi [Forest fires, the effects and control], For. Inst. NASB, Gomel, BY.
5. Lujaniene, G., Ogorodnikov, B. I. and Budyka, A. K. (1997) ‟An investigation of changes in radionuclide carrier properties”, Journal of Environmental Radioactivity, vol. 35, pp. 71-90.
6. Ageets, V. Y., Timofeev, S. F. and Podolyak, A. G. (2002) ‟Assessment of radiation situation in the settlement after the fire”, Sbornik nauchnykh trudov Instituta lesa NAN Belarusi [Proceedings of the Forest Inst. of NASB], vol. 54, pp. 117-120.
7. ‟Greenpeace Russia” Available at: http://www. greenpeace. org/russia/ru/news/2015/10-08-pozhar/ (accessed 15 Septeber 2015).