Author: "Gupta, Ruchie" - Searchworks@Jio Institute Digital Library Search Results

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Author: Gupta, Ruchie, Singh, Tejinder, Kaur, Rupinderjeet, Kaur, Jaswinder, Pal, Mohinder, and Shikha, Deep
Subjects: *THORON, *NUCLEAR track detectors, *RADON, *SMOKING
Abstract: Radon is a carcinogenic gas that can cause lung cancer in humans. Radon comes at second number after the cigarette smoking in causing lung cancer to the humans. It is a naturally occurring radioactive gas along with another radioactive gas thoron that can be present indoor in high concentration without the knowledge of the occupants, leading to some health-related problems in them. To safe guard the humans from radon & thoron exposure some mitigation methods can be suggested. But before that, the firsthand knowledge of its concentration in the dwellings is the utmost important thing. The measurement of radon and thoron concentration in the dwellings can be done by many methods,however, passive measurement technique of using pin hole-based radon thoron dosimeters with solid state nuclear track detectors is preferred over other techniques. In this paper we have measured indoor radon & thoron concentration of around ten dwellings in the Gurugram district of Haryana. Annual effective dose rates due to radon and thoron were also calculated. [ABSTRACT FROM AUTHOR]
Published: 2022
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Author: Shikha, Deep, Kaur, Rupinderjeet, Gupta, Ruchie, Kaur, Jaswinder, Chandan, Sapra, B. K., Singh, Supreet Pal, and Mehta, Vimal
Subjects: *THORON, *RADON
Abstract: In the present work, an exertion has been made to assess the indoor 222Rn and 220Rn levels in dwellings of a Roopnagar district of Punjab, India. These estimations have been done in the rainy, winter, autumn and summer season. The average indoor radon concentration is 44 ± 14.08 Bq m−3, 57.40 ± 17.61 Bq m−3, 32.38 ± 12.59 Bq m−3 and 31.38 ± 7.48 Bq m−3 and thoron concentration are 56.91 ± 19.75 Bq m−3, 64.45 ± 23.90 Bq m−3, 45.98 ± 19.38 Bq m−3 and 43.39 ± 10.45 Bq m−3 for rainy, winter, autumn and summer seasons, respectively. The mean value of equilibrium equivalent radon and thoron concentration during the rainy season is 11.25 ± 2.91 Bq m−3 and 0.62 ± 0.14 Bq m−3 and during winter season is 13.36 ± 3.36 Bq m−3 and 0.85 ± 0.34 Bq m−3 respectively. For autumn season these values are 9.58 ± 1.43 Bq m−3 and 0.46 ± 0.11 Bq m−3, respectively. For summer season these values are 12.10 ± 1.57 Bq m−3 and 0.57 ± 0.99 Bq m−3, respectively. The annual inhalation dose comes out to be 0.98 ± 0.16 mSv. [ABSTRACT FROM AUTHOR]
Published: 2021
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Author: Kaur, Rupinderjeet, Shikha, Deep, Kaushal, Anjali, Gupta, Ruchie, Singh, Supreet Pal, Chauhan, R. P., and Mehta, Vimal
Subjects: *RADIOISOTOPES, *DISEASE risk factors, *GAMMA ray spectroscopy, *MONUMENTS, *NOBLE gases, *THORON
Abstract: Radon (222Rn) and Thoron (220Rn) are radioactive noble gases which are produced in the decay chain of primordial radionuclides 238U and 232Th. These gases have been established as an important source of inhalation radiation dose to human which increases risk of lung cancer. Similarly the terrestrial 226Ra, 232Th, 40K are known to contribute to cumulative external background exposure to humans. In the present study, these radionuclides of concern were measured in the environment of monuments and museums in the state of Punjab and the resultant dose was calculated for the occupants. The calculated Annual Inhalation Dose level varied from 1.5 to 4.0 mSv with mean of 3.0 ± 0.8 mSv. The cumulative dose from all radionuclides 226Ra, 232Th and 40K is 47.0 ± 11.56 nGyh−1, found well within the safe limits of 86 nGyh−1. [ABSTRACT FROM AUTHOR]
Published: 2021
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