Assessment of background ionizing radiation exposure levels in industrial buildings in Nnewi, Anambra State, Nigeria
DOI:
https://doi.org/10.18203/2320-6012.ijrms20220273Keywords:
Annual effective dose rate, Background ionizing radiation, Indoor and outdoor, Offices/industrial buildingsAbstract
Background: Increased exposure from background radiations and the attendant health effects have in recent times drawn the attention of researchers. This study aimed to assess the indoor and outdoor background radiation levels in selected offices/industrial buildings in Nnewi, Anambra State, Nigeria.
Methods: Forty buildings in the four villages of Nnewi were surveyed using a calibrated international medicom CRM 100 radiation monitor. Radiation readings were obtained in counts per minute and converted to micro-sieverts per hour (µSv h-1). The indoor annual effective dose rate (IAEDR), outdoor annual effective dose rate, excess lifetime cancer risk, and organ doses were calculated using recommended occupancy and conversion factors.
Results: The mean IAEDR and OAEDR were respectively 0.8060±0.056 mSv y-1 and 0.2281±0.020 mSv y-1 with estimated ELCR of 2.822x10-3 and 0. 799x10-3 respectively. The testes received the highest dose (0.843 mSv y-1) followed by bone marrow (0.710 mSv y-1).
Conclusions: The study revealed that the mean background radiation exposures in and outside offices in Nnewi, Anambra State were below the UNSCEAR and ICRP recommended doses for the general public.
References
International Atomic Energy Agency. IAEA Safety Glossary 2016 version. Terminology used in nuclear safety and radiation protection 2016. Available at: http://www-ns.iaea.org/standards/safety-glossary.asp. Accessed on 3 January 2018.
Arena V. Ionizing radiation and life. St. Louis; The C. V. Mosby Company: 1971.
Obed RI, Farail P, Jibiri NN. Population Dose Distribution due to soil Radioactivity concentration levels in 18 cities across Nigeria. J Radiol. Protec. 2005;25:305-12.
Radiation and your health. Available at: http://www.cdc.gov/nceh/radiation/decay.htm. Accessed on 3 January 2018
Chad-Umoren YE, Adekanmbi M, Harry SO. Evaluation of indoor background ionizing radiation profile of a physics laboratory. Facta University Series: Work. Liv. Environ. Protec. 2007;3(1):1-7.
UNSCEAR. Sources and effects of ionizing radiation. Report to General Assembly.Annex B New York 2008. Available at: http://:www.unscear. org/unscear/en/publications/2008. Accessed on 3 January 2018.
Giada G, Luigi L, Andrea P, Romolo R, Danielle F. Radiation protection considerations on radon and buildings materials radioactivity in near Zero energy buildings. Energy Procedia. 2017;140:13-22.
Turhan S. Assessment of natural radioactivity and radiological hazards in Turkish cement and its raw materials. J Environ. Radioactivity. 2008;99(2):404-14.
Stoulos S, Manolopoulou M, Papastefanou C. Assessment of natural radiation exposure and radon exhalation from building materials in Greece. J Environ Radioactivity. 2003;69:225-40.
Kendal GM and Smith TJ.Dose to organs and tissues from radon and its decay products. J Radiol Prot. 2002;22:389-406.
Řeřicha V, Kulich M, Řeřicha R, Shore DL, Sandler DP .Incidence of Leukemia, Lymphoma, and Multiple Myeloma in Czech Uranium Miners: A Case–Cohort Study. Environ Health Perspective. 2006;114(6):818-22.
Darby S, Hill D, Auvinen A, Barros-Dios JM, Baysson H, Bochicchio F, et al. Radon in homes and risk of lung cancer: collaborative analysis of individual data from 13 European case-control studies. BMJ. 2005;330:223.
Maria S, Gael PH, Michael K, Anne MT Bernd G. Accounting for smoking in the radon related long cancer risk among German uranium Miners: Result of nested case control study. Health Phys. 2010; 98(1):20-8.
Kim ST, Yoo J. Rational establishment of radon exposure standards for dwellings and workplaces. Int J Radiat. Res. 2020;18 (2):359-68.
Sources and effects of ionizing radiation. Report to General Assembly. Annex B New York 2000. Available at: http://:www.unscear.org/unscear/en/ publications/2000. Accessed 23 December 2018. Accessed on 3 January 2018
Hendry JH, Steven LS, Anderzeh W, Mendi S, Werner B, Cardis E, et al. Human exposure to high natural background radiation: what can it teach us about radiation risk? J Radiol Prot. 2009;29(0):A29-42.
Oladipupo MD and Yabaji JA. Measurement of background gamma radiation levels in the main campus of Ibrahim Badamasi Babangida University Lapai, Niger State Nigeria. Adv Appl Sci Res. 2015; 6(6):95-8.
Olarinoye IO, Sharifat I, Baba-Kutigi AN, Kolo MT, Aladeniyi K. Measurement of background gamma radiation levels at two tertiary institutions in Minna, Nigeria. J Appl Sci Environ Manage. 2010;14(1):59-62.
Sadiq AA, Agba EH .Background radiation in Akwanga, Nigeria. Work. Liv Environ Protec. 2011; 8(1):7-11.
Ramli TA, Aliyu AS, Agba EH, Saleh MA. Effective dose from natural background radiation in Keffi and Akwanga towns, Central Nigeria. Int J Radiat Res. 2014;12(1):47-52.
Avwiri GO, Nte FU, Oghenevovwero EE. Assessment of background ionization radiation of oil spillage site at obodo creek in Gokana L.G.A of Rivers State, Nigeria. Brit J Appl Sci Techn. 2014; 4(36):5072-9.
Oladele BB, Arogunjo AM, Aladeniyi K. Indoor and outdoor gamma radiation exposure levels in selected residential buildings across Ondo State, Nigeria. Int J Radiat Res. 2018;16(3):363-70.
Ugbede FO, Benson ID. Assessment of outdoor radiation levels and radiological health hazards in Emene Industrial Layout of Enugu State, Nigeria. Int J Physical Sci. 2018;13(20): 265-72.
Felix BM, Robert RD, Emmanuel WM. Assessment of indoor and outdoor background radiation levels in Plateau State University Bokkos Jos Nigeria. J Environ Ear Sci. 2015;5(8):22-8.
Jwanbot DI, Izam MM, Gambo M. Measurement of indoor background ionizing radiation in some science laboratories in University of Jos, Jos-Nigeria. Sci World J. 2012;7(2):5-8.
Emelue HU, Eke BC, Oghome P, Ejiogu BC. Evaluation of radiation emission from refuse dumpsites in Owerri Nigeria. IOSR J Appl Physics. 2013;4(6):1-5.
Olubosede O, Akinagbe OB, Adekoya O. Assessment of radiation emission from waste dumpsites in Lagos state of Nigeria. Int J Comput Engr Res. 2012;2(3):806-11.
NPC-Nigerian Population Commission. Population distribution by age and sex. Federal Republic of Nigeria 2006 population and housing census. Priority. 2010
Ebong IDU and Alagoa KD. Fertilizer impact on ionization radiation background at a production plant. Nig J Physics. 1992;4:143-9.
International commission on radiological protection. age dependence dose to the member of public from intake of radionuclides. Part 1. International Commission on Radiation Protection (ICRP) Publication 56. London: Pergamon Press, Oxford. 1990.
International commission on radiological protection. International commission on radiological protection. Age dependent doses to members of the public from intake of radionuclides. Part 5: Compilation of Ingestion and Inhalation Coefficients. ICRP Publication 72. Pergamon Press. Oxford. 1996.
Darwish DAE, Abul-Nasr KTM, El-Khayatt AM. The assessment of natural radioactivity and its associated radiological hazard and dose parameters from granite samples from South Sinai, Egypt. J Radiat Res and App Sci. 2015;8:17-25.
Chiegwu HU, Odoh FO, Ugwuanyi DC, Adejoh T, Ohagwu CC . Natural Radionuclides in Commonly Consumed Food Items in Enugu State, Nigeria. The Trop J Health Sci.2020;27(1):40-6.
Abubakar A, Sadiq AA, Musa MG, Hassan J, Malgwi DF. Assessment of indoor ionizing radiation profile in radiology department FMC Asaba Delta State Nigeria. IOSR J Dental and Med Sci. 2017; 16(1):98-101.
Strand T. Doses to the norwegian population from naturally occurring radiations and from the chernobyl fallout (doctoral dissertation) National institute of radiation hygiene institute of physics university of Oslo, Norway.1987;1-226.
Elbarbary M, Soor AT, Gafaar IM, Abdel-Razek YA, Eldine NW. Evaluation of natural radioactivity for Abu Dabbab and Nuwibi Albite granite, Central Eastern Desert, Egypt. IOSR J Appl Physics. 2019; 11(6 Ser.II):64-77.
Shahbazi-Gahrouei D, Gholami M, Setayandeh S. A review on natural background radiation. Adv Biomed Res. 2013;2(3):1-10.
Gholami M, Mirzaei S, Jomehzadeh A. Gamma background radiation measurement I Lorestan Province, Iran. Iran J Radiat. Res. 2011;9(2):89-93.
Sohrabi M, Roositalab J, Mohammadi J. Public effective dose from environmental natural gamma expossures: indoor and outdoor in Iran. Radiat Prot Dosimet. 2015;167(4):633-41.
Ogola PE, Arlka WM, Nyamai DW, Osano KO, Rachuonyo HO, Wambani JR, et al. Determination of background ionizing radiations in selected buildings in Nairobi County, Kenya. J Nucl Med Radiat Ther. 2016;7(3):1-7.
Wrixon AD, Green BMR, Lomas PR, Miles JCH, Cliff KD, Francis EA, et al . Natural radiation exposure in UK dwellings. NRPB Chilton UK.1988.
Green BMR, Lomas PR, Bradley EJ, Wrixon AD. Gamma-radiation levels in Great Britain. NRPB Chilton UK.1989.
Phil-Eze PO .Variability of soil properties related to vegetation cover in a tropical rainforest landscape. J Geography Reg Plan.1995;3(7):177-84.
James IU, Moses IF, Akueche EC, Kuwen RD. Assessment of indoor and outdoor radiation level and human health risks in sheda science and technology complex and its environ, Abuja, Nigeria. J Appl Sci Environ Manage. 2010;24(1):13-8.
Olalekan I, Vyaceslav K, Oleg M, Boris S. Review of distribution of natural radiation in some parts of Nigeria. Nucl Sci. 2019;4(4):52-9.
Ezekiel AO. Assessment of excess lifetime cancer risk from gamma radiation levels in Effurun and Warri City of Delta State, Nigeria. J Taibah Univ Sci. 2016;11(2017):367-80.
Sombo T, Ichaver A, Isah OH, Asagah E. Preliminary investigation of indoor and outdoor radiation levels within federal university of agriculture, Makurdi Main Campus, North Central Nigeria. IOSR J Appl Physics. 2018;10(1 Ver II):71-4.
Ibikunle SB, Arogunjo AM, Ajayi OS .Characterization of Radiation and Excess Lifetime Cancer Risk Due to Natural Radionuclides in soils from Some Cities in Southwestern Nigeria. J Forensic Sci Criminal Inves. 2018;10(4):1-10.
Sharma P, Meher PK, Mishra KP. Terrestrial gamma radiation dose measurement and health hazard along river Alknanda and Ganges in India. J Radiat Res Appl Sci. 2014;7(2014):595-600.
Qureshi AA, Tariq S, Din KU, Manzoor S, Calligaris C, Waheed A. Evaluation of excess lifetime cancer risk due to natural radioactivity in the rivers sediments of Northern Parkistan. J Radiat Res Appl Sci. 2014;7(2014):438-47.
