Abstract

The ambient gamma radiation around the Bellary thermal power plant was measured by Scintillometer of NaI (Tl) detector. The ambient gamma radiation level is mainly dependent upon the activity of primordial radionuclides present in soil and building materials. The activity of natural radionuclides presents in the soil and building materials of some villages around the Bellary thermal power plant is labelled by gamma-ray spectroscopy. The activity of natural radionuclides in soil such as 226Ra, 232Th and 40K varies from 24 to 86.2 Bq·kg−1, 45 to 115 Bq·kg−1 and 145 to 910 Bq·kg−1 with a mean value of 32.5, 79 and 640 Bq·kg−1, respectively. The total measured annual effective dose rate of gamma varies from 0.85 to 1.37 mSv·year−1 and the total calculated annual effective dose rate varies from 0.88 to 1.47 with a mean value of 1.18 mSv·year−1. The measured and calculated values of ambient gamma radiation are very nearer to each other and show positive correlation with a correlation coefficient of 0.44. All the measured radiological indices in soil and building materials are lower than the safe level limit except fly ash bricks, fly ash brick shows a value higher than the safe level limit. The fly ash emitted from the thermal power plant enhances the radiation level in nearby villages. The results are presented and analyzed in this paper.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.