Study of variation of indoor radon levels in houses and prediction of indoor concentrations using house characteristics and outdoor radon levels.

The measurement of 222Rn concentrations in indoor and outdoor air was carried out in certain locations of Mandya city, Karnataka, using the Solid State Nuclear Track Detectors (SSNTD) technique. The annual mean values of 222Rn in indoor and outdoor are found to be 20.5 ± 1.

STUDIES ON GAMMA DOSE RATES IN INDOOR AND OUTDOOR ENVIRONMENT OF HASSAN CITY, KARNATAKA.

Gamma-ray dose rates have been measured in the indoor and outdoor air of Hassan City. The measurements were done from 25 locations of Hassan City at 1 m above the ground surface for radiometric, geophysical and environmental surveys using a lightweight portable radiation survey meter (scintillometer). The meter reading fluctuates around a mean value and is proportional to the count rate detected by the unit.