Distribution of Radon Levels in Udaipur

Abstract

In the present study, measurements of radon concentrations have been carried out in dwellings of Udaipur town situated in Rajasthan-province of Northern India. According to Geological survey of India, this place falls in the pre-Cambrian rocks in Aravalli mountain range. The trace element analysis indicates higher percentage of natural uranium. The survey was made in randomly selected fifty-seven (57) dwellings in Udaipur town. LR-115 type II track–etch detectors in bare mode were exposed for 100 days in each dwelling. Analyses of the present data yield an aggregate distribution with an average (arithmetic mean) radon concentration of 99 Bq.m^-3. The geometric mean values of total potential alpha energy concentration in this town was found to be 74 Bq.m^-3 with geometric standard deviation of 2.2 as well as the minimum and maximum radon concentrations encountered in the study are in the range of 61-277 Bq.m^-3.