Department of Studies in Physics, University of Mysore, Manasagangotri, Mysore, India
*Email: msc@physics.uni-mysore.ac.in
Online published on 11 December, 2012.
The 222Rn in soil gas were measured in 0.5m and 1m depth for different locations around Mysore city using Solid State Nuclear Track Detectors. The concentration of radon in soil was observed higher near Chamundi hills and Karighatta village in rainy season. These higher concentrations may be due to higher 226Ra concentration in the soil at these places. The Geometric Median (GM) activity of 226Ra, 232Th and 40K concentration in Mysore city for soil and rock samples is found to be 20.3, 64.0 and 396.7 Bq kg−1; 46.4, 68.7 and 634.9 Bq kg−1. The activity concentration is low compared with the values of world activity concentration. The highest 226Ra and 222Rn activity concentration in bore well water sample is found to be 189.10 mBq L−1 and 434.60 Bq L−1in Chamundi Hills.
Radon, SSNTDs, Dosimeter, 226R, 232Th, 40K, HPGe, Bubbler
