Assessment of Indoor and Outdoor Background Ionizing Radiation Level in School of Marine Technology, Burutu, Delta State, Nigeria

Main Article Content

Oghenevovwero E. Esi
Ovie Edomi
Peter O. Odedede

Abstract

The ionizing radiation has the tendency of causing damage to man and its environments, hence the assessment of indoor and outdoor background ionizing radiation level in Delta State School of Marine Technology, Burutu, Delta State, Nigeria, was carried out using well calibrated and tested radiation meter (Digilert 100). The study was done in a period of ten calendar months. The purpose of this study is to obtain baseline data for indoor and outdoor Background Ionizing Radiation (BIR) level and health effect on man and the environment. For the indoor and outdoor measurement, readings were taken in three consecutive times in one location at a height of 1 meter above the ground for each point. The geographical positioning system (GPS) was equally employed in determining the coordinates of the area. The results from BIR measurement revealed that indoor readings range from 0,009 mRhr-1 to 0,019 mRhr-1 with a mean value of 0,015 mRhr-1 and for the outdoor ranges 0,010 mRhr-1 to 0,020 mRhr-1 with a mean value of 0,014 mRhr-1. The radiation health parameters calculated, for dose rate and Annual Effective Dose Equivalent (AEDE) have their mean values to be 1,135 mGyr-1 and 1,035 mGyr-1 for indoor and 0,635 mSvyr-1 and 0,145 mSvyr-1 for outdoor respectively. But the mean values of Excess Lifetime Cancer Risks (ELCR) for indoor and outdoor are 1,729 and 0,394 respectively. The deviation in BIR level and its radiological parameters are attributed to oil and gas activities in the study areas. The implication is that the area is radiologically unhealthy, the effect may not be significant but long term exposure may be dangerous. Therefore, it is imperative for radiation protection agencies to swing into regulatory action and there should be monitoring of the environment in order to reduce pollution.

Keywords:
Indoor, exposure, dose, cancer

Article Details

How to Cite
Esi, O. E., Edomi, O., & Odedede, P. O. (2019). Assessment of Indoor and Outdoor Background Ionizing Radiation Level in School of Marine Technology, Burutu, Delta State, Nigeria. Asian Journal of Research and Reviews in Physics, 2(3), 1-8. Retrieved from http://journalajr2p.com/index.php/AJR2P/article/view/30104
Section
Original Research Article

References

Mokobia CE. Radiation in the environment in mans his environment and substantial Development. Egboh SHO (Ed) Delta State University Press, Abraka, Nigeria. Sci. Journal of Scientific Issues, Research and Essay. 2010;2(11):12-16.

Ajibade AC. Provisional classification and correlation of the schist belt in north western Nigeria. Elizabeth Publishing Co., Ibadan. 1976;85-87.

Adejugbagbe TI. A radiometric mapping of Federal University, Oye Ekiti, Main Campus, South Western Nigeria, Depart-ment of Physics, Federal of Oye Ekiti Nigeria. Project Work: 2015;1-54.

Foland CK, Kirland TK, Vimnikoov K. Observed climatic variations and changes (IPCC Scientific Assess ent) Cambridge University Press, New York. 1995;101-105.

Avwiri GO, Enyina PI, Agbalagba EO. Terrestrial Radiation around Oil and Gas Facilities in Ughelli. Nigeria Journal of Applied Science. 2007;7:1543-1546.

Kuroda PK. Estinction of burn up in the Oklo National Nuclear Reactor from further Mum Isotopic Composition. J. Radional. Nucl. Chem. Lett. 1991;155:107-113.

UNSCEAR, United Nations Scientific Committee on the Effect of Atomic Radiation. Sources and Effects of Ionizing Radiation. Report vol 1. Dose Assessment Methodologies; 2000.

ICRP, ICRP Publication 60, Recommenda-tion of the International Commission on Radiological Protection, Pergamon; Press, Oxford; 1991.

Nyango CB. Measurement of radiation dose rate of University of Jos Main Campus. Un-Published BISC project, University of Jos, Ogbomoso. Nigeria Journal of Physics. 2006;16(1):76-78.

Akpolile AF, Akpolile FD. Assessment of background gamma radiation level in farmlands in Ethiope East Local Government Area of Delta State, Nigeria. Nigeria Journal of Physics. 2014;25(2): 124-154.

Avwiri GO. Radiation, the good, the bad and the ugly in our environment. An Inaugural Lecture 79th Series, University of Port-Harcourt; 2011.

Mokobia CE, Oyibo B. Determination of background ionizing radiation (BIR) level in some selected farms in delta state, Nigeria, Nigeria Journal of Science and Environment. 2017;15(1).

NCRP. National council on radiation protection and measurements ionizing radiation exposure of the population of the United State. Nuclear Energy Institute; 1987.

UNSCEAR. United Nations Scientific Committee on the Effect of Atomic Radiation. Sources and Effects of Ionizing Radiation. Report 1. Dose Assessment Methodologies; 2010.

World Health Organization; 2015.
Available:www.worldlifeexpectancy.com/nigeria-Life Expectancy
(Accessed 13/08/2018)

Mokobia CE, Balogun FA. Background gamma terrestrial dose rate in Nigeria functional cool mines Oxford University Press; 2004.

Mokobia CE, Aniku T, Avwiri G. Evaluating the radiation health compliance of some beach environment in delta state. Journal of Applied Science and Environmental Management. 2006;20(3):513-519.

ICRP. International Commission on Radiological Protection. Publication 26. Recommendation of ICRP; 1977.
(Accessed 20/08/2018)

Rafique M, et al. Effect of geology and altitude on ambient outdoor gamma dose rates in District Poonch. Azard Kashmir Carpathian Journal of Earth and Environmental Sciences. 2013;8(4):165-173.