Dispersion of radionuclides from coal-fired brick kilns and concomitant impact on human health and the environment

Abedin, M. J. and Karim, M. R. and Khandaker, Mayeen Uddin * and Kamal, M. and Hossain, S. and Miah, M. H. A. and Bradley, D.A. * and Faruque, M. R. I. and Sayyed, M. I. (2020) Dispersion of radionuclides from coal-fired brick kilns and concomitant impact on human health and the environment. Radiation Physics and Chemistry, 177. p. 109165. ISSN 0969-806X

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Official URL: http://doi.org/10.1016/j.radphyschem.2020.109165


Realizing the probable health implications via the exposures to radionuclides released from coal-fired brick kilns, concentrations of terrestrial radionuclides in feed coal, fly- and bottom ash collected from some major coal-fired brick kilns of Southern region in Bangladesh were measured using HPGe γ-ray spectrometry. Respective mean activity concentrations (Bq kg−1) for 226Ra, 232Th and 40K were found to be 36.3 ± 1.8, 26.2 ± 2.1 and 314 ± 18 in feed coal; 60.8 ± 3.9, 36.6 ± 3.9 and 338 ± 19 in fly ash; 54.9 ± 4.0, 39.7 ± 4.6 and 311 ± 18.0 in bottom ash samples. As a result of the combustion process, radionuclide concentration enhancements have been observed in proceeding from feed coal to fly- and bottom-ash. The calculated values of air absorbed dose-rates for fly- and bottom-ash are greater than the world average of 55 nGy/h reported by UNSCEAR, and the Lifetime Cancer Risk (LCR) approaches towards the safe limit recommended by the ICRP. As such, this does flag up a potential concern for those dwelling in nearby areas, especially for the coal workers who normally do not take any protective measures against exposure to ash dust. Multivariate statistical analysis has been used in examining for correlations between the origins of the radionuclides and their influence on the calculated radiological parameters. The measured data indicate significance for human health, also for the scientific community, and could be used for modeling studies in the region.

Item Type: Article
Uncontrolled Keywords: Coal-fired brick kilns; Radionuclides dispersion; Enhancement factor; Absorbed dose and carcinogenic risk; Statistical analysis
Subjects: R Medicine > R Medicine (General) > R895-920 Medical Physics/Medical Radiology
Divisions: Others > Non Sunway Academics
Sunway University > School of Engineering and Technology [formerly School of Science and Technology until 2020] > Research Centre for Applied Physics and Radiation Technologies
Depositing User: Dr Janaki Sinnasamy
Related URLs:
Date Deposited: 17 Nov 2021 09:26
Last Modified: 17 Nov 2021 09:26
URI: http://eprints.sunway.edu.my/id/eprint/1627

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