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Indoor and Built Environment
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Measurement of Radon Exhalation Rate from Building Materials used in the southwest coastal region of India

Christa E. Pereira

Center for Advanced Research in Physical Sciences, Department of Physics Fatima Mata National College, Kollam 691 001, Kerala, India

V.K. Vaidyan

Center for Advanced Research in Physical Sciences, Department of Physics Fatima Mata National College, Kollam 691 001, Kerala, India

P.J. Jojo

Center for Advanced Research in Physical Sciences, Department of Physics Fatima Mata National College, Kollam 691 001, Kerala, India, jpan{at}rediffmail.com

T.V. Ramachandran

Environmental Assessment Division, Bhabha Atomic Research Center Mumbai 400 085, India

This paper presents the results of a sample survey carried out to study the radon profile and radon exhalation rate in commonly used building materials used for construction of dwellings around high background areas of south India. Simultaneously, radon concentrations were also measured using passive detector techniques. Experimental procedure used for the measurement was the track etch technique. Radon emanation rates from the building materials studied varied from 17.7—308 mBq · m-3 · h-1. Estimated exhalation rates have been compared with others found in the literature.

Key Words: Building materials • Radon exhalation • Nuclear track detectors • Can technique

Indoor and Built Environment, Vol. 17, No. 5, 472-475 (2008)
DOI: 10.1177/1420326X08095830
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