Indian Journal of Pure and Applied Physics

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An Investigation of Radiological Risk in Test Dwelling through Experimental and Simulation Approaches


Affiliations
1 Department of Physics, National Institute of Technology, Kurukshetra, Haryana 136 119, India
2 Department of Chemistry, IB PG College Panipat, Haryana 132 103, India
 

Study of radon, thoron and their progeny are important from radiological point of view. This work is towards their prediction, measurement, decay behavior, estimation of associated factors and effective dose for different room conditions (open and closed). The levels are measured experimentally using active monitors, dosimeters and deposition-based progeny sensors. Radon is found uniformly distributed for the open room condition while thoron shows complex behavior. A decrease in radon concentration is found through prediction and measurement for open room condition with increase of homogeneity. The solid radon progenies got distributed uniformly in the closed room. Total equilibrium equivalent concentration (EEC) for thoron is found comparatively more for the open room condition, EEC (unattached) found more for the closed environment, while for radon both are higher for closed room condition. The gas levels along with distribution are found to be affected by the vent ambiance. The average of unattached factors is estimated to be fRn (0.1) for open, (0.2) for closed while fT (0.1) for open, (0.3) for closed room. Comparison of measurement and simulation approach shows reasonable matching of the results and validation of the simulation code. Different doses and conversion factors are also estimated and found within the recommended limits.

Keywords

Indoor Radon, Dosimeter, Active Radon Measurement, DRPS, DTPS.
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  • UNSCEAR, 2000.Report to the General Assembly, with Scientific Annex B.

  • WHO, Indoor radon a public health perspective, A public health perspective, Int J Environ Stud, 2009.

  • Nazarof WW, Moed B A & Sextro RG, In: Radon and its decay products in indoor, 1988.

  • Yanchao S, Bing S, Hongxing C &Yunyun W, Appl Radiat Isot, 173 (2021) 109706.

  • Tokonami S, Radiation Protection Dosimetry, 141 (2010) 335.

  • Janik M, Tokonami S, Kranrod C, Sorimachi A, Ishikawa T, Hosoda M, Mclaughlin J, Chang BU & Kim YJ, J Radiat Res, 54 (2013) 597.

  • Nazir S, Simnani S, Mishra R, Sharma T & Masood S, J Radioanal Nucl Chem, 325 (2020) 315.

  • Takahashi L C, de Oliveira Santos T, Pinheiro R M M, Passos R G & Rocha Z, Appl Radiat Isot, 186 (2022) 110217.

  • Urosevic V, Nikezic D & Vulovic S, J Environ Radioact, 99 (2008) 1829.

  • Akbari K, Mahmoudi J & Ghanbari M, J Environ Radioact, 116 (2013) 166.

  • Chen J, Rahman N M & Atiya I A, J Environ Radioact, 101 (2010) 317.

  • Ramachandran T V, Eappen K P, Nair R N, Shaikh A N, Mayya Y S & PuranikV D, In Proceedings of the thirteenth national symposium on environment. Focal theme: mining of energy resources-environmental management, (2004).

  • Singh P, Saini K, Mishra R, Sahoo B K & Bajwa B S, Radiat Environ Biophys, 55 (2016) 401.

  • Gaware J J, Sahoo B K, Sapra B K & Mayya Y S, Barc Newsl, (2011) 45.

  • Devi V, Kumar A & Chauhan R P, Environ Earth Sci, 78 (2019) 506.

  • Chauhan N, Chauhan R P, Joshi M, Agarwal T K, Aggarwal P & Sahoo B K, J Environ Radioact, 136 (2014) 105.

  • Sahoo B K, Sapra B K, Kanse S D, Gaware J J & Mayya Y S, Radiat Meas 58 (2013) 52.

  • Mishra R, Sapra B K & Mayya Y S, Nucl Instruments Methods Phys Res Sect B Beam Interact with Mater Atoms, 267 (2009) 3574.

  • Mayya Y S, Mishra R, Prajith R, Sapra B K & Kushwaha H S, Sci Total Environ, 409 (2010) 378.

  • Mishra R & Mayya Y S, Radiat Meas, 43 (2008) 1408.

  • Knutson EO, In: Nazaroff WW, Nero AV JrRadon and its decay products in indoor air, Wiley, NewYork, (1988) 161.

  • Mehra R, Jakhu R, Bangotra P & Mittal H M, Dose-Response, 14 (2016) 1.

  • Meisenberg O, Mishra R, Joshi M, Gierl S, Rout R, Guo L, Agarwal T, Kanse S, Irlinger J, Sapra B K & Tschiersch J, Sci Total Environ, 579 (2017) 1855.

  • UNSCEAR, Sources and effects of ionizing radiation. United Nations, New York, Report to the General Assembly, with Scientific Annexes, 2008.

  • Porstendörfer J, Environ Int, 22 (1997).

  • Bennett W D, Zeman K L & Jarabek A M, J Toxicol Environ Heal - Part A Curr, 71 (2008) 227.

  • ICRP, ICRP Publication-65, Protection against radon-222 at home and at work, Pergamon Press, Oxford, 1993.

  • Devi V & Chauhan R P, Radiat Environ Biophys, 60 (2021) 309.

  • Agarwal T K, Sahoo B K, Gaware J J, Joshi M & Sapra B K, J Environ Radioact, 136 (2014) 16.

  • Xie D, Wu Y, Wang C, Yu CW, Tian L & Wang H, Sustain Cities Soc, 66 (2021) 102599.

  • Zhou W, Iida T, Moriizumi J, Aoyagi T & Takahashi I, Radiat Prot Dosimetry, 93 (2001) 357.

  • ICRP, ICRP publication 115: lung cancer risk from radon and progeny and statement on radon, Ann ICRP, Pergamon Press, Oxford, (2011).

  • Porstendorfer J, Tutorial / review properties and behaviour of radon and thoron and their decay products in the air, 25 (1994) 219.

  • UNSCEAR, Annex E: sources-to-effects assessment for radon in home and workplaces. United Nations, New York Report to the General Assembly, (2006).


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  • An Investigation of Radiological Risk in Test Dwelling through Experimental and Simulation Approaches

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Authors

Vandana Devi
Department of Physics, National Institute of Technology, Kurukshetra, Haryana 136 119, India
Era Garg
Department of Chemistry, IB PG College Panipat, Haryana 132 103, India
R P Chauhan
Department of Physics, National Institute of Technology, Kurukshetra, Haryana 136 119, India

Abstract


Study of radon, thoron and their progeny are important from radiological point of view. This work is towards their prediction, measurement, decay behavior, estimation of associated factors and effective dose for different room conditions (open and closed). The levels are measured experimentally using active monitors, dosimeters and deposition-based progeny sensors. Radon is found uniformly distributed for the open room condition while thoron shows complex behavior. A decrease in radon concentration is found through prediction and measurement for open room condition with increase of homogeneity. The solid radon progenies got distributed uniformly in the closed room. Total equilibrium equivalent concentration (EEC) for thoron is found comparatively more for the open room condition, EEC (unattached) found more for the closed environment, while for radon both are higher for closed room condition. The gas levels along with distribution are found to be affected by the vent ambiance. The average of unattached factors is estimated to be fRn (0.1) for open, (0.2) for closed while fT (0.1) for open, (0.3) for closed room. Comparison of measurement and simulation approach shows reasonable matching of the results and validation of the simulation code. Different doses and conversion factors are also estimated and found within the recommended limits.

Keywords


Indoor Radon, Dosimeter, Active Radon Measurement, DRPS, DTPS.

References