Title of article :
Estimation of Annual Effective Dose of 222 Rn and 220 Rn in indoor Air of Rohilkhand region, Uttar Pradesh state, India
Author/Authors :
Rastogi, N Department of Physics - School of Sciences - IFTM University - Moradabad - UP, India , Singh, I Department of Physics - School of Sciences - IFTM University - Moradabad - UP, India , Goswami, V Department of Physics - School of Sciences - IFTM University - Moradabad - UP, India
Pages :
8
From page :
737
To page :
744
Abstract :
The annual exposure to indoor radon and thoron imparts a major contribution to inhalation doses received by the public. In this study, we report results of time integrated passive of indoor radon and thoron concentrations that were carried out in Rohilkhand region with health risk to the dwellers in the region. In present study, Solid State Nuclear Track Detectors (SSNTDS ) based twin chamber dosimeter with LR-115 track detector were used for estimating Radon (222Rn) and Thoron (220Rn) gas concentration levels in the dwellings of Moradabad city. The average Radon and thoron concentration levels in the studied dwellings were found to vary from 13.5 to 21.8 Bq m-3 and thoron concentrations is found to vary from 11.7 to 19.5 Bq m-3 and its corresponding geometric mean of equilibrium-equivalent 222Rn and 220Rn concentration were found 7.07 to 1.7 Bqm-3 . The total annual effective dose due to the exposure to radon and thoron was found to vary from3.7 to 6.2 mSv/y whereas from thoron found to vary from 0.3 to 0.61 mSv/y.
Keywords :
Radon , Thoron , Double Dosimeter Cup , LR-115 type-II plastic track detector , SSNTDs
Journal title :
Astroparticle Physics
Serial Year :
2018
Record number :
2450381
Link To Document :
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