Measurement of radon concentration in soil gas and radon exhalation rate from soil samples along and across the Main Central Thrust of Garhwal Himalaya, India.

Autor: Singh KP; Department of Physics, P.N.G. Govt. P.G. College, Ramnagar, Nainital, 244715, India. krishnapalnegi@gmail.com., Chandra S; Department of Physics, P.N.G. Govt. P.G. College, Ramnagar, Nainital, 244715, India., Panwar P; Department of Applied Science and Engineering, Tula's Institute, Dehradun, Uttarakhand, 248197, India., Joshi A; Department of Physics, HNB Garhwal University, BadshahiThaul Campus, Tehri Garhwal, 249199, India., Prasad G; Department of Physics, B.L.J. Govt. P.G. College, Purola, Uttarkashi, 249185, India., Gusain GS; Department of Physics, Govt. P.G. College, New Tehri, Tehri Garhwal, 249001, India., Ramola RC; Department of Physics, HNB Garhwal University, BadshahiThaul Campus, Tehri Garhwal, 249199, India.
Jazyk: angličtina
Zdroj: Environmental geochemistry and health [Environ Geochem Health] 2023 Nov; Vol. 45 (11), pp. 8771-8786. Date of Electronic Publication: 2023 Sep 26.
DOI: 10.1007/s10653-023-01758-7
Abstrakt: The present study focuses on measuring radon concentrations in soil gas at various depths, radon exhalation rate (surface and mass) from soil samples, and gamma dose rate along and across the Main Central Thrust of Garhwal Himalaya, India. Radon concentration in soil gas, surface, and mass exhalation rates was measured using a portable SMART radon monitor (RnDuo). Furthermore, the gamma dose rate was measured using a pocket radiation monitor. The soil gas radon concentration varied from 15 ± 4 to 579 ± 82 Bq m -3 at a depth of 25 cm, 10 ± 2 to 533 ± 75 Bq m -3 at a depth of 30 cm, and 9 ± 1 to 680 ± 95 Bq m -3 at a depth of 35 cm. The surface and mass exhalation rates were found 3 ± 0.7 to 98 ± 3 Bq m -2  h -1 (with AM ± SD = 36 ± 28 Bq m -2  h -1 ) and 1 ± 0.2 to 95 ± 2 mBq kg -1  h -1 (with AM ± SD = 30 ± 22 mBq kg -1  h -1 ), respectively. The gamma dose rate for the present study area varies from 0.11 ± 0.05 to 0.28 ± 0.05 µSv h -1 with a mean value of 0.17 ± 0.05 µSv h -1 . The correlation analysis between the exhalation rates (mass and surface) and radon concentration of soil gas at various depths was carried out in the current study.
(© 2023. The Author(s), under exclusive licence to Springer Nature B.V.)
Databáze: MEDLINE
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