Assessment of Radiation Emission Levels in Industrial Sites of Ibadan Metropolis Nigeria

International Journal of Research and Innovation in Applied Science (IJRIAS) | Volume VII, Issue IV, April 2022 | ISSN 2454–6194

Assessment of Radiation Emission Levels in Industrial Sites of Ibadan Metropolis Nigeria

 Chiaghanam N.O. PhD,* Esien- umo E.O. PhD, Asuquo C.F. BSc, Oladiran O.R BSc
Department of Radiography and Radiological Science, University of Calabar, Calabar- Nigeria
*Corresponding Author

Abstract: The increase in population of major cities in Nigeria has caused proliferation of industries around them especially Ibadan. Hence, the rate and the volume of the waste generated equally increases. This can be a source of environmental health hazard and possible radiation emission from each industrial site to the workers and close residential areas calls for a concern. Hence, the aim of this study is to assess radiation emission levels in industrial sites of Ibadan metropolis. The industrial sites are mainly located in Oluyole L.G.A of Ibadan. A portable radiation survey meter RDS-30 with serial number 270354 was used to quantify the exposure levels in the industrial sites. The absorbed dose rates were determined at 10 different industries of the study area. The highest stable point was observed while radiation survey meter was placed at the level of Gonad at 1metre above the ground level. The procedure was repeated three times at the same point in the industrial site. An average mean value and standard deviation were determined for each of the locations. Radiological hazard indices were calculated from the data obtained. The mean background reading was 0.09uSvh-1. The mean equivalent dose was 0.14 uSvh-1, the mean absorbed doe rate (ADR) was 142nGyh-1. The calculated annual exposure dose rate (AEDR) was 0.17mSvy-1. The corresponding estimated ECLR was 0.60X10-3. However, from the result of the study, it was observed that proper and continuous evaluation of dose level should be maintained to avoid any possible health effect of radiation.

Key Words: Radiation, Emission, Levels, Ibadan, Exposure, Dose

I. INTRODUCTION

The advent of high developmental activities in the 21st century could not be over emphasized, especially in the areas of technology, medicine, agriculture, industrialization and many others (Rahman, 2011). This combined with increase in human population around the globe has made the 21st century the era of modern development, which thus increase human and financial resources around the developing nations (Krueger, 1997). The developmental process in Africa particularly in Nigeria has increased tremendously over the last decades. As regards to this study, this paradigm of change has not left out the African second largest city called Ibadan (Ogbuozobe, 1996). Ibadan is the capital of Oyo state which is located in the southwestern geo-political zone of Nigeria. This description becomes quite understandable when it is realised that the city, apart from being a pre-colonial origin with a large area of land covering approximately 35,743km squares (Odunaike et al., 2007), it also shares boundary with kwara state to the north, Osun state to the south and partly Ogun state and partly Republic of Benin to the west

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