NDLI: Volumetric Variations of Indoor Radon and Thoron

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Volumetric Variations of Indoor Radon and Thoron

Arabian Journal for Science and Engineering : Volume 36, Issue 3, May 2011

Arabian Journal for Science and Engineering : Volume 36, Issue 2, March 2011

Arabian Journal for Science and Engineering : Volume 36, Issue 1, January 2011

Volumetric Variations of Indoor Radon and Thoron

Content Provider	Springer Nature Link
Author	Sathish, L. A. Nagaraja, K. Ramanna, H. C. Sundareshan, S.
Copyright Year	2011
Abstract	The volumetric variations of indoor radon and thoron were measured in rooms ranging in volume from 30–310 m$^{3}$ in different dwellings at various locations in Bangalore, India. The rooms selected were similar in quality of construction, age, type of walls, and type of floor. Twin cup plastic track detectors were installed in the rooms of 42 dwellings to record indoor $^{222}$Rn and $^{220}$Rn levels. Higher concentrations were observed in rooms with lower volumes than in rooms with higher volumes. The $^{222}$Rn and $^{220}$Rn concentrations in the dwellings ranged from 4.0–93.0 Bq m$^{−3}$, whereas the concentrations of their daughter products ranged from 0.01–2.5 mWL. When the room volume increased tenfold, the concentration of $^{222}$Rn reduced by 23% and that of $^{220}$Rn reduced by 13%, provided all other conditions remained the same. The concentrations did not increase linearly with the volumes of the rooms. The annual effective exposure dose rate because of $^{222}$Rn, $^{220}$Rn and their daughter products ranged from 0.1–0.4 mSv year$^{−1}$ with a mean of 0.2 ± 0.1 mSv year$^{−1}$.
Starting Page	671
Ending Page	676
Page Count	6
File Format	PDF
ISSN	13198025
Journal	Arabian Journal for Science and Engineering
Volume Number	36
Issue Number	4
e-ISSN	21914281
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-06-18
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Volume Indoor radon Indoor thoron Plastic track detectors Dose rate Science Engineering
Content Type	Text
Resource Type	Article

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