IIARD International Institute of Academic Research and Development

RESEARCH JOURNAL OF PURE SCIENCE AND TECHNOLOGY (RJPST )

E-ISSN 2579-0536
P-ISSN 2695-2696
VOL. 7 NO. 2 2024
DOI: https://doi.org/10.56201/rjpst.v7.no2.2024.pg1.9

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Evaluation of Background Ionizing Radiation and Its’ Associated Health Hazards in Onne Port Complex Port Harcourt

Mgbemere. C.J, Avwiri. G.O. and Ononugbo. C. P.

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Abstract

Exposure to background ionizing radiation has been a major challenge in the industry and transport sector. This study presents the results of outdoor ambient dose rates in and around Onne port complex, Eleme, Port Harcourt Rivers State, Nigeria. An In-situ measurement of radiation exposure rate was done using well calibrated radiation detector (Radalert-100). From the exposure rate, the absorbed dose and cancer risk were calculated by standard methods. Results showed that the outdoor absorbed dose rates ranged between 165.7 nGy/h to 55.26 nGy/h, while values obtained from ISL, PCL, GLT, GTT, RJOT, JYT, MKT, WST & FST premises are above the UNSCEAR 2008 standard. The calculated excess lifetime cancer risk ranges between 0.509 and 0.17. The study concluded that the radiological risk parameters calculated from the port complex are above the recommended world standards by ICRP and UNSCEAR, and the onne complex is not radiologically degraded.

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References:

Avwiri, G.O., Alao, A.A and Onuma, E.O., (2012). Survey of Terrestrial Radiation Levels of
Onne Seaport, Rivers State, Nigeria. Asian Journal of Natural & Applied Sciences, 1(3):
107-114.

Avwiri, G.O., Enyinna, P.I., and Agbalagba, E.O. (2007). Terrestrial Radiation Survey around
oil and gas facilities in Ughelli, Nigeria. Journal of Applied Sciences, 7(11): 1543-1546.
Avwiri, G.O., and Ebeniro, J.O. (1998). External Environmental Radiation in an industrial area
of Rivers State, Nigeria. Nigeria Journal of physics, 10: 105-107.

International Commission on Radiological Protection Age-dependent doses to members of the
public from intake of radionuclides: part 5. Compilation of ingestion and inhalation dose
coefficients. Annals of the ICRP 26(1). ICRP Publication 72. Pergamon Press, Oxford;
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