Abstract
In this study pin hole dosimeter with deposition based progeny sensors were used to estimate 222Rn, 220Rn and their daughters in the indoor atmosphere. The estimated annual average indoor 222Rn and 220Rn activity concentration were found to be 76.4 Bq m−3 and 93.5 Bq m−3, respectively. The mean value of EEC for radon and thoron was 45.5 Bq m−3 and 1.3 Bq m−3 respectively. The annual effective dose due to indoor 222Rn and 220Rn were found to be 2.9 mSv y−1 and 0.4 mSv y−1 respectively. The estimated effective doses are well below the safe limit as suggested by ICRP for indoor exposure.
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The authors would like to express their sincere gratitude to M. P. E. Society’s Undergraduate Research Centre for providing the research Equipments. Also the cooperation extended by all the dwellers of study region is highly appreciated and thankfully acknowledged.
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Suresh, S., Rangaswamy, D.R., Sannappa, J. et al. Assessment of radiological dose from exposure to attached and unattached fractions of radon (222Rn) and thoron (220Rn) in indoor atmosphere. J Radioanal Nucl Chem 326, 173–184 (2020). https://doi.org/10.1007/s10967-020-07285-4
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DOI: https://doi.org/10.1007/s10967-020-07285-4