GIS Mapping and Background Ionizing Radiation (BIR) Assessment of Solid Mineral Mining Sites in Enugu State, Nigeria

Jude Chukudi Osimobi; Ezekiel Oghenenyerhovwo Agbalagba; Gregory Onomakere Avwiri; Chinyere Patience Ononugbo

doi:10.4236/oalib.1101979

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GIS Mapping and Background Ionizing Radiation (BIR) Assessment of Solid Mineral Mining Sites in Enugu State, Nigeria

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DOI: 10.4236/oalib.1101979 670 Downloads 1,049 Views Citations

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Jude Chukudi Osimobi¹, Ezekiel Oghenenyerhovwo Agbalagba², Gregory Onomakere Avwiri¹, Chinyere Patience Ononugbo¹

Affiliation(s)

¹Department of Physics, University of Port Harcourt, Port Harcourt, Nigeria.
²Department of Physics, Federal University of Petroleum Resources, Effurun, Nigeria.

ABSTRACT

A study of the external background ionizing radiation (BIR) levels in eight solid mineral mining sites in Enugu State has been carried out using two Digilert radiation monitors Radalart-50 and Radalart-100. Thirty two readings of four samplings in each point were taken at different solid mineral sites of the state following standard procedure. The measured BIR levels obtained ranged from 0.012 mR/hr in Nkpologwu silica mining site to 0.028 mR/hr in clay mining site in Enugu-Ekulu with an average of 0.018 ± 0.004 mR/hr, while the corresponding calculated equivalent dose rate ranged from 1.0 mSv/yr to 2.35 mSv/yr with a mean value of 1.51 ± 0.04 mSv/yr. The result obtained indicates that the average exposure level of the studied area is 38.5% higher than the international standard. This suggests the possibility of the presence of radionuclide in the solid minerals mined in Enugu state. However, the values obtained may not cause immediate health challenge to miners and those engaging in commercial activities around these mining sites in Enugu, but may result in long-term health side-effects to residence and miners who put in over twenty-five years in the job. From the forgoing, it is recommended that control mechanism should be adopted for the members of the public, residence, commercial traders as well as miners working in these sites, and to protect the environment.

KEYWORDS

BIR Assessment, GIS Mapping, Solid Mineral, Enugu State

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

Osimobi, J. , Agbalagba, E. , Avwiri, G. and Ononugbo, C. (2015) GIS Mapping and Background Ionizing Radiation (BIR) Assessment of Solid Mineral Mining Sites in Enugu State, Nigeria. Open Access Library Journal, 2, 1-9. doi: 10.4236/oalib.1101979.

References

[1]	Jibiri, N.N., Farai, I.P. and Ogunlana, A.M. (1999) Radioactivity Level of Some Nigerian Rock Samples. Nigeria Journal of Physics, 11, 220.

[2]	Ballinger, P.W. (1991) National Radiation, Radiographic Position and Procedures. Mosby Year Book, 1, 21-32.

[3]	Ramli, T.A., Aliyu, A.S., Agba, E.H. and Saleh, M.A. (2014) Effective Dose from Natural Background Radiation in Keffi and Akwanga Towns, Central Nigeria. International Journal of Radiation Research, 12, 47-52.

[4]	Farai, I.P. and Vincent, U.E. (2006) Outdoor Radiation Level Measurement in Abeakuta Nigeria, by Thermoluminescent Dosimetry. Nigerian Journal of Physics, 18, 121-123.

[5]	Adams, L. and Andrew, H. (1993) Hand Book of Radiation Effects. Oxford University Press, London, 2-41.

[6]	Avwiri, G.O., Agbalagba, E.O. and Enyinna, P.I. (2010) Occupational Radiation Levels in Solid Mineral Producing Areas of Abia State. Scientia Africana, 9, 93-97.

[7]	Dexter, P. (2002) Mineralogy. Pearson Education Inc., New York.

[8]	Sadiq, A.A. and Agba, E.H. (2011) Background Radiation in Akwanga, Nigeria. Facta Universitatis; Series: Working and Living Environmental Protection, 8, 7-11.

[9]	United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) (2000) Sources and Effects of Ionizing Radiation (Report to the General Assembly). United Nation, New York.

[10]	Enugu State Ministry of Environment and Mineral Development (2010) Enugu State Investment Potentials in Solid Minerals. Government Bulletin, 23.

[11]	Ajayi, N.O. and Laogun, A.A. (2006) Variation of Environmental Gamma Radiation in Benin with Vertical Height. Nigerian Journal of Space Research, 2, 47-54.

[12]	Avwiri, G.O., Egieya, J.M. and Ononugbo, C.P. (2013) Radiometric Survey of Aluu Landfill in Rivers State, Nigeria. Advances in Physics Theories and Applications, 22, 24-30.

[13]	National Council on Radiation Protection and Measurements (NCRP) (1993) Limitation of Exposure to Ionizing Radiation: NCRP Report No. 116, March, National Council on Radiation Protection and Measurements, Bethesda, Maryland.

[14]	Nwankwo, L.I. and Akoshile, C.O. (2005) Background Radiation Study of Offa Industrial Area of Kwara State, Nigeria. Journal of Applied Sciences and Environmental Management, 9, 95-98.

[15]	Avwiri, G.O., Agbalagba, E.O. and Enyinna, P.I. (2007) Terrestrial Radiation around Oil and Gas Facilities in Ughelli Nigeria. Asian Network for Science Information. Journal of Applied Sciences, 7, 1543-1546. http://dx.doi.org/10.3923/jas.2007.1543.1546

[16]	Agbalagba, E.O. and Meindinyo, R.K. (2010) Radiological Impact of Oil Spilled Environment: A Case Study of the Eriemu Well 13 and 19 Oil Spillage in Ughelli Region of Delta State, Nigeria. Indian Journal of Science and Technology, 2, 1001-1005.