Variability of radon and thoron equilibrium factors in indoor environment of Garhwal Himalaya
| Autor: | G. S. Gusain, Anoop Dangwal, R. C. Ramola, Tushar Kandari, Mukesh Rawat, Mukesh Prasad, Rosaline Mishra |
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| Rok vydání: | 2016 |
| Předmět: |
Hydrology
Health Toxicology and Mutagenesis Annual average India chemistry.chemical_element Radon General Medicine 010501 environmental sciences 010403 inorganic & nuclear chemistry 01 natural sciences Pollution 0104 chemical sciences Summer season chemistry Air Pollutants Radioactive Radiation Monitoring Air Pollution Indoor Equilibrium factor Environmental Chemistry Environmental science Seasons Waste Management and Disposal 0105 earth and related environmental sciences |
| Zdroj: | Journal of Environmental Radioactivity. 151:238-243 |
| ISSN: | 0265-931X |
| DOI: | 10.1016/j.jenvrad.2015.10.017 |
| Popis: | The measurements of radon, thoron and their progeny concentrations have been carried out in the dwellings of Uttarkashi and Tehri districts of Garhwal Himalaya, India using LR-115 detector based pin-hole dosimeter and DRPS/DTPS techniques. The equilibrium factors for radon, thoron and their progeny were calculated by using the values measured with these techniques. The average values of equilibrium factor between radon and its progeny have been found to be 0.44, 0.39, 0.39 and 0.28 for rainy, autumn, winter and summer seasons, respectively. For thoron and its progeny, the average values of equilibrium factor have been found to be 0.04, 0.04, 0.04 and 0.03 for rainy, autumn, winter and summer seasons, respectively. The equilibrium factor between radon and its progeny has been found to be dependent on the seasonal changes. However, the equilibrium factor for thoron and progeny has been found to be same for rainy, autumn and winter seasons but slightly different for summer season. The annual average equilibrium factors for radon and thoron have been found to vary from 0.23 to 0.80 with an average of 0.42 and from 0.01 to 0.29 with an average of 0.07, respectively. The detailed discussion of the measurement techniques and the explanation for the results obtained is given in the paper. |
| Databáze: | OpenAIRE |
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