Radionuclide concentrations and excess lifetime cancer risk due to gamma radioactivity in tailing enriched soil around Maiganga coal mine, Northeast Nigeria

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Kolo M.T.; Amin Y.M.; Khandaker M.U.; Abdullah W.H.B.

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Journal: International Journal of Radiation Research Year:2017 | Volume:15 | Issue:1 Page(s): 71-80

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Title

Radionuclide concentrations and excess lifetime cancer risk due to gamma radioactivity in tailing enriched soil around Maiganga coal mine, Northeast Nigeria

Author(s)

Kolo M.T. | Amin Y.M. | Khandaker M.U. | Abdullah W.H.B. | Issue Writer Certificate

Keywords

Maiganga coal mine

tailings

HPGe detector

absorbed dose

excess lifetime cancer risk

Abstract

Background: Human activities such as mining enhance the radioactivity levels above normal background which can lead to an incremental increase in the radiation risk to the population. Materials and Methods: 20 tailing enriched soil samples collected around Maiganga coal mine, Gombe, Northeast Nigeria were assessed for their 226Ra, 232Th and 40K contents using HPGe gamma-ray detector. Results: The mean activity values of 11. 90± 3. 0, 17. 72± 3. 6 and 70. 44± 20. 4 Bq kg-1 were obtained for 226Ra, 232Th and 40K respectively. These values were below the world average values documented by UNSCEAR. The ratio of 232Th: 226Ra obtained was 1. 5, which showed that 232Th activity was higher than the activity of 226Ra while 40K recorded the highest activity concentration in the studied samples. Statistical analysis identified strong positive relationships among all radiological parameters and confirmed that 226Ra, 232Th and 40K were the major contributors to radiation dose. Radium equivalent activity (Raeq), absorbed gamma dose rate (DR), annual effective dose (AEDE), activity utilization index (AUI), external and internal hazard indices (Hex and Hin), gamma representative index (Iγ r), annual gonadal dose (AGDE) and excess lifetime cancer risk (ELCR) were calculated to quantify the radiation risk to the public from exposure to 226Ra, 232Th and 40K in the studied samples. The mean values of these hazard parameters were within the acceptable limits provided for human safety and environmental protection. Conclusion: The use of the tailing enriched soil samples of Maiganga coal mine for any purpose whatsoever does not therefore pose any immediate radiological risk to the coal workers or the general public.

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APA: Copy

Kolo, M.T., Amin, Y.M., Khandaker, M.U., & Abdullah, W.H.B.. (2017). Radionuclide concentrations and excess lifetime cancer risk due to gamma radioactivity in tailing enriched soil around Maiganga coal mine, Northeast Nigeria. INTERNATIONAL JOURNAL OF RADIATION RESEARCH, 15(1), 71-80. SID. https://sid.ir/paper/286775/en

Vancouver: Copy

Kolo M.T., Amin Y.M., Khandaker M.U., Abdullah W.H.B.. Radionuclide concentrations and excess lifetime cancer risk due to gamma radioactivity in tailing enriched soil around Maiganga coal mine, Northeast Nigeria. INTERNATIONAL JOURNAL OF RADIATION RESEARCH[Internet]. 2017;15(1):71-80. Available from: https://sid.ir/paper/286775/en

IEEE: Copy

M.T. Kolo, Y.M. Amin, M.U. Khandaker, and W.H.B. Abdullah, “Radionuclide concentrations and excess lifetime cancer risk due to gamma radioactivity in tailing enriched soil around Maiganga coal mine, Northeast Nigeria,” INTERNATIONAL JOURNAL OF RADIATION RESEARCH, vol. 15, no. 1, pp. 71–80, 2017, [Online]. Available: https://sid.ir/paper/286775/en

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