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Title: Radon exhalation rates from soils and stones as building materials
Authors: Chauhan, R P
Chakarvarti, S K
Issue Date: Sep-2002
Publisher: NISCAIR-CSIR, India
Abstract: Building materials are the main source of radon inside houses. The most popular building materials are soil bricks and different types of stones. Radon is released in to ambient air from soil and stones due to omnipresent uranium in them, thus, increasing the airborne radon concentration. In the present investigation. the radon emanated from soil and stone samples collected from locations in Haryana and other surroundings states (Northern India) has been estimated. For the measurement of radon concentration emanated from these samples the authors used ex-sensitive LR- 115 type II plastic track detectors. The radon concentration in soil samples collected from Haryana and Delhi varied from 246 ± 29 Bq m-3 to 453 ± 35 Bq m-3 whereas, it varied from 482 ± 91 Bq m-3 to 689 ± 84 Bq m-3 in case of' soil samples collected from in and around some thermal power plants. For stone samples, the radon concentration varied from 472 ± 39 Bq m-3 to 905 ± 69 Bq m-3.Based upon the data, the mass and the surface exhalation rates of' radon emanated from them have also been calculated and reported.
Page(s): 670-673
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.40(09) [September 2002]

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