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Radiation Protection Dosimetry Advance Access originally published online on February 2, 2008
Radiation Protection Dosimetry 2008 130(2):257-263; doi:10.1093/rpd/ncm500
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© The Author 2008. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

Regional variations pattern of indoor radon levels in some areas of Punjab and Haryana

Harmanjit Singh*, Joga Singh, Surinder Singh and B.S. Bajwa

Department of Physics, Guru Nanak Dev University, Amritsar 143 005, India

* Corresponding author: harman_edu{at}rediffmail.com

Received September 1, 2007, amended November 19, 2007, accepted December 26, 2007

The indoor radon concentration levels and their regional variations pattern, for two consecutive half-year periods, in a wide range of dwellings of some regions of Punjab and Haryana states have been studied. The objective was to find the relation between the variations of indoor radon levels with the sub-soil and local geology, type of building materials utilised in the dwellings of the region. Keeping this in view, indoor radon measurements have been carried out in the dwellings of 30 villages around the Tusham Ring Complex, Bhiwani district, Haryana, known to be composed of acidic volcanics and associated granites, along with 11 villages of Amritsar District, Punjab. The indoor radon concentration in the dwellings around Tusham (Haryana) was found to vary from 120 ± 95 to 915 ± 233 Bq m–3, whereas radon levels varied from 60 ± 37 to 235 ± 96 Bq m–3 for the dwellings studied in Punjab. We believe that local geology including embedded granitic rocks, and sub-soil, as well as building materials having higher radioactive content, is the major contributor for the higher indoor radon levels observed particularly in the dwelling around Tusham Ring complex, where some dwellings are showing higher radon concentrations than the ICRP recommendations. The environmental samples from some areas of Punjab state and around the Tusham Ring Complex of Haryana state have also been analysed for radon exhalation studies. Higher values for radon exhalation rates have been observed for the Tusham's soil/rock specimens, as compared with soil samples of the Amritsar region of Punjab.


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