Atmospheric super(222)Rn in tourist caves of Slovenia, Yugoslavia.

Kobal, I; Smodis, B; Burger, J; Skofljance, M

J. Stefan Inst., E. Kardelj Univ., 61000 Ljubljana, Yugoslavia

Health Physics vol. 52, no. 4, pp. 473-479, 1987 ISSN 0017-9078

Radon-222 concentrations in the air of 12 tourist caves in Slovenia, Yugoslavia were measured. In almost all the caves concentrations are higher than in the outdoor air, with the highest concentration in the Tabor Cave at about 6000 Bq m super(-3). From the super(222)Rn concentrations obtained, the activity of super(222)Rn inhaled by a visitor breathing cave air was calculated, and the bronchial dose was estimated. The inhaled activity and the bronchial dose were highest in the Tabor Cave with values of 10 kBq and 540 mu Sv, respectively.