Estimation of annual effective radon doses and risk of lung cancer in the residents of district Bhimber, Azad Kashmir, Pakistan
Results of indoor radon survey in the dwellings of district Bhimber are presented. Current study is continuation of our preceding studies aiming to setup baseline indoor radon data for the state of Azad Jammu & Kashmir, Pakistan. In this context, 60 representative houses were carefully se...
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| Format: | Article |
| Language: | English |
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VINCA Institute of Nuclear Sciences
2011-01-01
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| Series: | Nuclear Technology and Radiation Protection |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1451-3994/2011/1451-39941103218R.pdf |
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| author | Rafique Muhammad Rahman Said Rahman Saeed U. Rathore Mumtaz H. Shahzad Muhammad I. Bukhari Shujaht Ali Zulfiqar Waseem Muhammad Rajput Muhammad U. Matiullah |
| author_facet | Rafique Muhammad Rahman Said Rahman Saeed U. Rathore Mumtaz H. Shahzad Muhammad I. Bukhari Shujaht Ali Zulfiqar Waseem Muhammad Rajput Muhammad U. Matiullah |
| author_sort | Rafique Muhammad |
| collection | DOAJ |
| description | Results of indoor radon survey in the dwellings of district Bhimber are presented. Current study is continuation of our preceding studies aiming to setup baseline indoor radon data for the state of Azad Jammu & Kashmir, Pakistan. In this context, 60 representative houses were carefully selected and CN-85 based box type radon detectors were installed in bedrooms and living rooms of each house. The detectors were exposed to indoor radon for 90 days. After etching CN-85 detectors in 6M NaOH at 70°C for 3 hours, the observed track densities were related to the indoor radon concentration using calibration factor of 0.0092 tracks cm2/h per Bq/m3. The measured indoor radon concentration ranged from 29 ± 11 to 58 ± 8 Bq/m3, 40 ± 9 to 60 ± 7 Bq/m3, and 29 ± 12 to 66 ± 7 Bq/m3 in the regions of Bhimber, Samani, and Barnala, respectively. Excess relative risk factors were calculated using measured indoor radon concentrations, by using the risk model reported in the Biological Effects of Ionizing Radiation (BEIR VI, 1999) report. Excess relative risk was calculated for age groups of 35 and 55 years. Using local occupancy factor, average excess lung cancer risk for the population group of 35 and 55 years of age was found to be 0.42 ± 0.09 and 0.34 ± 0.08. The mean annual effective dose for Bhimber, Samani, and Barnala regions were found to be 1.05 ± 0.17 mSv, 1.09 ± 0.17 mSv, and 1.16 ± 0.17 mSv, respectively. These values are within in the safe limits recommended by the international organizations. |
| first_indexed | 2024-12-21T13:24:49Z |
| format | Article |
| id | doaj.art-941866bcf83d43eeb65d818924bc162a |
| institution | Directory Open Access Journal |
| issn | 1451-3994 |
| language | English |
| last_indexed | 2024-12-21T13:24:49Z |
| publishDate | 2011-01-01 |
| publisher | VINCA Institute of Nuclear Sciences |
| record_format | Article |
| series | Nuclear Technology and Radiation Protection |
| spelling | doaj.art-941866bcf83d43eeb65d818924bc162a2022-12-21T19:02:30ZengVINCA Institute of Nuclear SciencesNuclear Technology and Radiation Protection1451-39942011-01-0126321822510.2298/NTRP1103218REstimation of annual effective radon doses and risk of lung cancer in the residents of district Bhimber, Azad Kashmir, PakistanRafique MuhammadRahman SaidRahman Saeed U.Rathore Mumtaz H.Shahzad Muhammad I.Bukhari ShujahtAli ZulfiqarWaseem MuhammadRajput Muhammad U.MatiullahResults of indoor radon survey in the dwellings of district Bhimber are presented. Current study is continuation of our preceding studies aiming to setup baseline indoor radon data for the state of Azad Jammu & Kashmir, Pakistan. In this context, 60 representative houses were carefully selected and CN-85 based box type radon detectors were installed in bedrooms and living rooms of each house. The detectors were exposed to indoor radon for 90 days. After etching CN-85 detectors in 6M NaOH at 70°C for 3 hours, the observed track densities were related to the indoor radon concentration using calibration factor of 0.0092 tracks cm2/h per Bq/m3. The measured indoor radon concentration ranged from 29 ± 11 to 58 ± 8 Bq/m3, 40 ± 9 to 60 ± 7 Bq/m3, and 29 ± 12 to 66 ± 7 Bq/m3 in the regions of Bhimber, Samani, and Barnala, respectively. Excess relative risk factors were calculated using measured indoor radon concentrations, by using the risk model reported in the Biological Effects of Ionizing Radiation (BEIR VI, 1999) report. Excess relative risk was calculated for age groups of 35 and 55 years. Using local occupancy factor, average excess lung cancer risk for the population group of 35 and 55 years of age was found to be 0.42 ± 0.09 and 0.34 ± 0.08. The mean annual effective dose for Bhimber, Samani, and Barnala regions were found to be 1.05 ± 0.17 mSv, 1.09 ± 0.17 mSv, and 1.16 ± 0.17 mSv, respectively. These values are within in the safe limits recommended by the international organizations.http://www.doiserbia.nb.rs/img/doi/1451-3994/2011/1451-39941103218R.pdfCN-85 detectorindoor radon concentrationbiological effects of radiationslung cancermean annual effective dose |
| spellingShingle | Rafique Muhammad Rahman Said Rahman Saeed U. Rathore Mumtaz H. Shahzad Muhammad I. Bukhari Shujaht Ali Zulfiqar Waseem Muhammad Rajput Muhammad U. Matiullah Estimation of annual effective radon doses and risk of lung cancer in the residents of district Bhimber, Azad Kashmir, Pakistan Nuclear Technology and Radiation Protection CN-85 detector indoor radon concentration biological effects of radiations lung cancer mean annual effective dose |
| title | Estimation of annual effective radon doses and risk of lung cancer in the residents of district Bhimber, Azad Kashmir, Pakistan |
| title_full | Estimation of annual effective radon doses and risk of lung cancer in the residents of district Bhimber, Azad Kashmir, Pakistan |
| title_fullStr | Estimation of annual effective radon doses and risk of lung cancer in the residents of district Bhimber, Azad Kashmir, Pakistan |
| title_full_unstemmed | Estimation of annual effective radon doses and risk of lung cancer in the residents of district Bhimber, Azad Kashmir, Pakistan |
| title_short | Estimation of annual effective radon doses and risk of lung cancer in the residents of district Bhimber, Azad Kashmir, Pakistan |
| title_sort | estimation of annual effective radon doses and risk of lung cancer in the residents of district bhimber azad kashmir pakistan |
| topic | CN-85 detector indoor radon concentration biological effects of radiations lung cancer mean annual effective dose |
| url | http://www.doiserbia.nb.rs/img/doi/1451-3994/2011/1451-39941103218R.pdf |
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