Measurements of radon and thoron progeny concentrations in dwellings of Tehri Garhwal, India, using LR-115 deposition-based DTPS/DRPS technique.
This paper presents the values of radon and thoron progeny concentrations for different seasons in the dwellings of Tehri Garhwal, India. The measurements have been carried out using LR-115 solid-state nuclear track detector-based passive time-integrated direct thoron progeny sensor/direct radon progeny sensor technique. In summer, the radon and thoron progeny have been found to vary from 5.7±0.8 to 153.2±4.3 Bq m(-3) with an average of 37.6 Bq m(-3) and 0.3±0.06 to 3.2±0.19 Bq m(-3) with an average of 1.3 Bq m(-3), respectively. In the rainy season, the radon and thoron progeny have been found to vary from 3.2±0.6 to 120±3.7 Bq m(-3) with an average of 58.2 Bq m(-3) and 0.2±0.05 to 11.3±0.37 Bq m(-3) with an average of 3.4 Bq m(-3), respectively. In autumn, the radon and thoron progeny have been found to vary from 4.1±0.7 to 374.4±6.7 Bq m(-3) with an average of 95.6 Bq m(-3) and from 0.3±0.06 to 30.5±0.60 Bq m(-3) with an average of 6.6 Bq m(-3), respectively. In winter, the radon and thoron progeny have been found to vary from 9.8±1.1 to 188.9±4.8 Bq m(-3) with an average of 70.7 Bq m(-3) and 0.1±0.03 to 7.5±0.30 Bq m(-3) with an average of 2.3 Bq m(-3), respectively. It has been observed that the average value of radon and thoron progeny concentrations is maximum for autumn and minimum for summer seasons. The seasonal variations in radon and thoron progeny concentrations in different houses are discussed in detail.
Department of Physics, H.N.B. Garhwal University, Badshahi Thaul Campus, Tehri Garhwal 249 199, India bijalwanmukesh111@gmail.com.
Mukesh
M
Prasad
Department of Physics, H.N.B. Garhwal University, Badshahi Thaul Campus, Tehri Garhwal 249 199, India.
Mukesh
M
Rawat
Department of Physics, H.N.B. Garhwal University, Badshahi Thaul Campus, Tehri Garhwal 249 199, India.
Anoop
A
Dangwal
Department of Physics, H.N.B. Garhwal University, Badshahi Thaul Campus, Tehri Garhwal 249 199, India.
Manjulata
M
Yadav
Department of Physics, H.N.B. Garhwal University, Badshahi Thaul Campus, Tehri Garhwal 249 199, India.
G S
GS
Gusain
Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Mumbai 400 085, India.
Rosaline
R
Mishra
Department of Physics, H.N.B. Garhwal University, Badshahi Thaul Campus, Tehri Garhwal 249 199, India.
R C
RC
Ramola
D016902:Air Pollution, Indoor / Q000032:analysis / Q000706:statistics & numerical data*; D000398:Air Pollution, Radioactive / Q000032:analysis / Q000706:statistics & numerical data*; D000465:Algorithms; D003198:Computer Simulation; D007194:India; D015233:Models, Statistical; D011834:Radiation Monitoring / Q000379:methods* / Q000706:statistics & numerical data; D017687:Radon Daughters / Q000032:analysis*; D015203:Reproducibility of Results; D012621:Seasons; D012680:Sensitivity and Specificity
D017687:Radon Daughters