1. Central Laboratory for Radiological Protection, 03-194 Warszawa, Poland
2. Faculty of Building Services, Hydro and Environmental Engineering, Warsaw University of Technology, Nowowiejska 20, 00-653 Warszawa, Poland
3. Institute of Applied Radiation Chemistry, Lodz University of Technology, 90-924 Lodz, Poland
4. Faculty of Safety Engineering and Civil Protection, Main School of Fire Service, 01-629 Warsaw, Poland