Gamma Radiation Dose from Radionuclides in Soil Samples of Udagamandalam (Ooty) in India

Abstract

The systematic study of background radiation and the distribution of radionuclides in the environment of Udagamandalam in Nilgiri District of Tamil Nadu has been made. Gamma spectrometric analysis of the soil samples of this area has been carried out. The measured gamma dose in air is in the range 31.6 nGy.h-1 - 221.1 nGy.h-1 with a mean value 121.8 nGy.h-1. The average activities of the 232Th series, 238U series and 40K in soil samples are 114.6 ± 52.5 Bq.kg-1, 43.2 ± 23.2 Bq.kg-1 and 274.6 ± 86.7 Bq.kg-1 respectively.