Measurement of environmental soil radioactivity using gamma-ray spectrometry
DOI:
https://doi.org/10.56294/saludcyt20252151Keywords:
Soil radioactivity, Radiation hazard, Environmental radioactivity, Gamma-ray spectrometryAbstract
Introduction
Exposure to naturally occurring and anthropogenic radionuclides is a ubiquitous feature of the environment. Consequently, establishing baseline levels of environmental radiation is imperative for ensuring public safety and for the timely assessment of potential contamination events.
Objective
This study aims to develop a preliminary database and a spatial map of natural background radiation levels in the air within Ba Ria-Vung Tau province, Vietnam.
Methodology
A total of 42 soil samples were systematically collected from the study area. These samples were subsequently analyzed to determine their radioactive content through the indexes: Radium Equivalent Activity, Representative Level Index, Absorbed Dose Rate, Annual Effective Dose Rate, External hazard index, Internal hazard index.
The resulting data was then utilized to construct a foundational map of natural background radiation.
Results
The research successfully established a preliminary database and a spatial map depicting natural radiation background. This foundational dataset is critical for ongoing radiological monitoring and serves as an important reference for regional economic and tourism development initiatives.
Conclusion
Detailed analysis and discussion of the study's conclusions are presented in the corresponding section at the end of this paper.
References
1. IAEA. (2014). Radiation Protection and Safety of Radiation Sources: International Basic Safety Standards. IAEA Safety Standards Series No. GSR Part 3. Vienna: International Atomic Energy Agency. https://doi.org/10.61092/iaea.u2pu-60vm
2. National Research Council (US) Committee on Evaluation of EPA Guidelines for Exposure to Naturally Occurring Radioactive Materials. (1999). Evaluation of Guidelines for Exposures to Technologically Enhanced Naturally Occurring Radioactive Materials. Washington (DC): National Academies Press (US).
3. Prăvălie, R. (2014). Nuclear Weapons Tests and Environmental Consequences: A Global Perspective. Ambio, 43(6), 729–744. https://doi.org/10.1007/s13280-014-0491-1
4. Hendry, J. H., Simon, S. L., Wojcik, A., Sohrabi, M., Burkart, W., Cardis, E., Laurier, D., Tirmarche, M., & Hayata, I. (2009). Human exposure to high natural background radiation: what can it teach us about radiation risks?. Journal of Rad1iological Protection, 29(0), A29–A42. https://doi.org/10.1088/0952-4746/29/2A/S03
5. Knoll, G. F. (2010). Radiation Detection and Measurement (4th ed.). John Wiley & Sons.
6. Eke, B. C., Akomolafe, I. R., Ukewuihe, U. M., & Onyenegecha, C. P. (2024). Assessment of Radiation Hazard Indices Due to Natural Radionuclides in Soil Samples from Imo State University, Owerri, Nigeria. Environmental Health Insights, 18. https://doi.org/10.1177/11786302231224581
7. Zubair, M., Verma, D., Azam, A., & Roy, S. (2013). Natural radioactivity and radiological hazard assessment of soil using gamma-ray spectrometry. Radiation Protection Dosimetry, 155(4), 467-473. https://doi.org/10.1093/rpd/nct017
8. Boukhenfouf, W., & Boucenna, A. (2011). The radioactivity measurements in soils and fertilizers using gamma spectrometry technique. Journal of Environmental Radioactivity, 102(4), 336-339.
9. UNSCEAR. (2000). Sources and effects of ionizing radiation: UNSCEAR 2000 Report to the General Assembly, with scientific annexes. Volume I: Sources. New York: United Nations Publications.
10. Gasser, E., Nachab, A., Nourreddine, A., Roy, C., & Sellam, A. (2014). Update of 40K and 226Ra and 232Th series γ-to-dose conversion factors for soil. Journal of Environmental Radioactivity, 138, 68-71. https://doi.org/10.1016/j.jenvrad.2014.08.002
11. Hassan, N. N., & Khoo, K. S. (2014). Measurement of natural radioactivity and assessment of radiation hazard indices in soil samples at Pengerang, Kota Tinggi, Johor. AIP Conference Proceedings, 1584(1), 190–195. https://doi.org/10.1063/1.4866130
12. Agbalagba, E. O., Avwiri, G. O., & Chad-Umoreh, Y. E. (2012). γ-Spectroscopy measurement of natural radioactivity and assessment of radiation hazard indices in soil samples from oil fields environment of Delta State, Nigeria. Journal of Environmental Radioactivity, 109, 64-70. https://doi.org/10.1016/j.jenvrad.2011.10.012
13. Diab, H. M., Nouh, S. A., Hamdy, A., & EL-Fik, S. A. (2008). Evaluation of natural radioactivity in a cultivated area around a fertilizer factory. Journal of Nuclear and Radiation Physics, 3(1), 53-62.
14. Garba, N. N., et al. (2023). Evaluation of radiological risk associated with local building materials commonly used in Northwestern Nigeria. Heliyon, 9(5), e15791.
15. UNSCEAR. (1993). Sources and Effects of Ionizing Radiation: UNSCEAR 1993 Report to the General Assembly, with Scientific Annexes. New York: United Nations.
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