MEASUREMENT OF RADON CONCENTRATION IN SOIL SAMPLES OF MAZAT AND KAFI-HABU MINING SITES, PLATEAU, NIGERIA
Abstract
Radon and its short-lived progenies contributed significantly to natural background radiation. Long-term exposure to such radiation increases the probability of lung cancer to persons. To assess the radiological hazards associated with the inhalation of radon gas from ore dust in Mazat and Kafi-Habu mining sites of Plateau, Nigeria, 12 soil samples from an abandoned tailing dump ground were collected and analysed for radon using RAD-7 electronic detector. The dose rate of each sampling point was directly measured using RADOS RDS -120 portable survey meter. The results gave a mean radon concentration ranging from 771.51 ± 21.9 Bq/m3 to 5666.13 ± 28.8 Bq/m3 with 3451.13 ± 42.9 Bq/m3as the average value for all measurements. The average concentration of measurements from Mazat and Kafi-Habu is 3671.6 ± 41.2 Bq/m3 and 3010.16 ± 46.5 Bq/m3 respectively. The average values obtained from the analysis are significantly higher than the upper limit of 300 Bq/m3 set by the International Commission on Radiological Protection (ICRP) suggesting quick remediation on the host communities. The geometrical mean value of Dose Rate (DR) and Annual Effective Dose Equivalent (AEDE) were 870 nGy/hr and 1.04 mSv/yr respectively. Again, these values are above the global average limits of 59 nGy/hr and 1 mSv/yr. The result indicates that miners working in those sites and dwellers of the study areas are at higher risk of getting exposed to radon and need to employ protective measures. This work is useful in monitoring and control of radon level for the on-site workers and the
References
Abba, H. T., W. M. S. W. Hassan and M. A. Saleh (2018). "Evaluation of environmental natural radioactivity levels in soil and groundwater of Barkin Ladi, Plateau state, Nigeria." Malaysian Journal of Fundamental and Applied Sciences 14(3 ): 338-342.
Abdulwahab, M. B., A. Asuku, Y. A. Ahmed, Ishola O. Okunade, A. Umar, S. John and A. R. Abubakar (2020). Assessment of Natural Radioactivity and Radon Emanation Rate at Jos Tin Mine Tailing Sites, Jos, Plateau State, Nigeria. Science Forum (Journal of Pure and Applied Sciences), Faculty of Science, Abubakar Tafawa Balewa University Bauchi.
Abo-Elmagd, M., A. Saleh and G. Afifi (2018). "Evaluation of radon-related parameters in environmental samples from Jazan city, Saudi Arabia." Journal of Radiation Research and Applied Sciences 11(1): 104-110.
Al-zoughool, M. and D. Krewski (2009). "Health Effects of radon: A review of the literature." International journal of radiation Biology 85(1): 57-69.
Amin, R. M. (2015). "A study of radon emitted from building materials using solid state nuclear track detectors." Journal of Radiation Research and Applied Sciences 8(4): 516-522.
Bala, P., V. Kumar and R. Mehra (2017). "Measurement of radon exhalation rate in various building materials and soil samples." Journal of earth system science 126(2): 31.
Dragović, S., L. Janković, A. Onjia and G. BaÄić (2006). "Distribution of primordial radionuclides in surface soils from Serbia and Montenegro." Radiation measurements 41(5): 611-616.
Duggal, V., A. Rani, R. Mehra and R. Ramola (2014). "Assessment of natural radioactivity levels and associated dose rates in soil samples from Northern Rajasthan, India." Radiation protection dosimetry 158(2): 235-240.
Elzain, A.-E. A. (2015). "Radon exhalation rates from some building materials used in Sudan." Indoor and Built Environment 24(6): 852-860.
EPA (2019). Radiation Health Effects. USA, United States Environmental Protection Agency.
Fleischer, R. L. (1983). "Theory of alpha recoil effects on radon release and isotopic disequilibrium." Geochimica et Cosmochimica Acta 47(4): 779-784.
HPS (2015). Background Radiation, Fact Sheet, Health Physics Society Specialists in Radiation Safety.
Ibeanu (1999). Assessment of Radiological Hazards of Tin Mining and Ore Processing in Jos, Nigeria. International Symposium on Restoration of Environments with Radioactive Residues. Arlington, Virginia, USA, International Atomic Energy Agency: 86-91.
ICRP (2018). Protection Against Radon-222 at Home and at Work, International Commission on Radiological Protection.
Ishimori, Y., K. Lange, P. Martin, Y. S. Mayya and M. Phaneuf (2013). Measurement and Calculation o Radon Releases from NORM Residues. Vienna, International Atomic Energy Agency Vienna.
Kobeissi, M., O. El Samad, K. Zahraman, S. Milky, F. Bahsoun and K. Abumurad (2008). "Natural radioactivity measurements in building materials in Southern Lebanon." Journal of Environmental Radioactivity 99(8): 1279-1288.
Komal, B., M. Rohit and R. G. Sonkawade (2010). "Measurement of radon concentration in groundwater using RAD7 and assessment of average annual dose in the environs of NITJ, Punjab, India." Indian Journal of Pure & Applied Physics 48: 508-511.
Lu, X., N. Li, G. Yang and C. Zhao (2013). "Assessment of natural radioactivity and radiological hazards in building materials used in Yan’an, China." Health physics 104(3): 325-331.
Mangset, W. and A. Sheyin (2009). "Measurement of radionuclides in processed mine tailings in Jos, Plateau State." Bayero Journal of Pure and Applied Sciences 2(2): 56-60.
Morawska, L. and C. R. Phillips (1993). "Dependence of the radon emanation coefficient on radium distribution and internal structure of the material." Geochimica et Cosmochimica Acta 57(8): 1783-1797.
Nasirian, M., I. Bahari and P. Abdullah (2008). "Assessment of natural radioactivity in water and sediment from Amang (tin tailing) processing ponds." Malays J Anal Sci 12(1): 150-159.
Olowolafe, A. E. (2008). "Land use effects on the properties of an Alfisol on the Jos Plateau, Nigeria." GeoJournal 71(2-3): 83-91.
Ramsiya, M., A. Joseph and J. P..J. (2017). "Estimation of indoor radon and thoron in dwellings of Palakkad,Keral, India using solid state nuclear track detectors." Journal of Radiation Research and Applied Sciences 10: 269-272.
Sambo, I. (2013). Assessment of occupational and public exposure arising from Tin processing industries in Jos-Central Nigeria. Ph.D, Ahmadu Bello University, Zaria, Nigeria.
Shilpa, G. M., B. N. Anandaram and T. L. Mohankumari (2017). "Measurement of 222Rn concentration in drinking water in the environs of Thirthahalli taluk, Karnataka, India." Journal of Radiation Research and Applied Sciences 10(3): 262-268.
UNSCEAR (2010). Sources and Effects of Ionizing Radiation United Nations Scientific Committee on the Effects of Atomic Radiation, UNSCEAR 2008, Report to the General Assembly with Scientific Annexes. New York United Nations Scientific Committee on the Effects of Atomic Radiation. 1: 235-236.
Usikalu, M., O. Anoka and F. Balogun (2011). "Radioactivity measurements of the Jos Tin mine tailing in Northern Nigeria." Archives of Physics Research 2(2): 80-86.
VaupotiÄ, J., I. Kobal and J. Planinić (1998). "Long-term radon investigation in four selected kindergartens in different geological and climate regions of Slovenia." Journal of radioanalytical and nuclear chemistry 238(1-2): 61-66.
Vaupotic, J., M. Krizman, J. Planinić, J. Pezdic, K. Adamic, P. Stegnar and I. Kobal (1994). "Systematic indoor radon and gamma measurements in kindergartens and playschools in Slovenia." Health physics 66(5): 550-556.
Wapwera, S. D., G. M. Ayanbimpe and C. E. Odita (2015). "Abandoned Mine, Potential Home for the People: A Case Study of Jos Plateau Tin-Mining Region " Journal of Civil Engineering and Architecture 9: 429-445.
WHO (2004). Guidelines for drinking water quality. Radiological aspects Geneva World health organization.
Wiwanitkit, V. (2008). "Minor heavy metal: A review on occupational and environmental intoxication." Indian J Occup Environ Med. 12(3): 116–121.(3): 116–121.
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