Quantification of 222Rn/ 220Rn exhalation rates from soil samples of Champawat region in Kumaun Himalaya, India

Autor:	Abhishek Rana, Manish Joshi, Kuldeep Singh, Om Prakash Nautiyal, Taufiq Ahamad, Prakhar Singh, A. A. Bourai
Rok vydání:	2021
Předmět:	Hydrology Nuclear Energy and Engineering Soil test Gamma dose Health Toxicology and Mutagenesis Public Health Environmental and Occupational Health Environmental science Exhalation Radiology Nuclear Medicine and imaging Radiation survey meter Pollution Spectroscopy Analytical Chemistry
Zdroj:	Journal of Radioanalytical and Nuclear Chemistry. 330:1485-1495
ISSN:	1588-2780 0236-5731
Popis:	The present study is carried out in selected locations of the Champawat district in the lesser Kumaun Himalayan belt of Uttarakhand, India. The Scintillation detector-based portable Smart RnDuo monitor was used to estimate exhalation rates of 222Rn and 220Rn. The levels of gamma dose rates were also measured using a portable radiation survey meter at each of the selected locations. The mass exhalation rate for 222Rn varies between 7.8 ± 0.1 and 107.3 ± 2.1 mBq kg−1 h−1 with an average of 38.9 ± 18.9 mBq kg−1 h−1. In contrast, the 220Rn surface exhalation rate ranges from 0.7 ± 0.5 to 14.3 ± 0.7 Bq m−2 s−1with an average 6.2 ± 3 Bq m−2 s−1 and emanation rate was found to range 88.4 and 1703.7 mBq kg−1 s−1 with an average 739 ± 356.7 mBq kg−1 s−1. The gamma dose rate was found to vary from 0.08 ± 0.01 to 0.30 ± 0.03 µSv h−1 with an average of 0.18 ± 0.06 µSv h−1 in the region.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4b289b3e1cea5bb4da096885f134d17a https://doi.org/10.1007/s10967-021-07954-y Zobrazit plný text záznamu Plný text ve formátu PDF