Natural Radioactivity in Soil and Radiation Levels of Rajasthan
- 1 February 1996
- journal article
- research article
- Published by Oxford University Press (OUP) in Radiation Protection Dosimetry
- Vol. 63 (3) , 207-216
- https://doi.org/10.1093/oxfordjournals.rpd.a031531
Abstract
The results of the measurement of natural radioactivity in soil collected from various locations of three districts of Rajasthan state using the gamma spectrometry technique are presented. The data on calculated and measured values of outdoor air absorbed dose rates due to terrestrial gamma radiation at each location are also discussed. It has been observed that the concentrations of the natural radionuclides viz., 40K, 226Ra and 232Th in the soils vary from 50 to 137 Bq.kg-1, from 30 to 78 Bq.kg-1 and from 43 to 106 Bq.kg-1 respectively. It has also been observed that on average, the outdoor terrestrial gamma air absorbed dose rate is about 6.7 x 10-8Gy.h-1 for the three districts and the corresponding outdoor annual effective dose of 8.2 x 10-5 Sv. Weak correlations have been observed between the concentration of 40K and that of 226Ra and 232Th.Keywords
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