RADIOMETRIC MAPPING AND RADIOLOGICAL HEALTH RISK ASSESSMENT OF THE NIGERIAN OIL AND GAS PARK SCHEME PREMISES, EMEYAL1, SOUTH-SOUTH NIGERIA.

Authors

  • Anekwe, U.L Department of Physics, Faculty of Science, Federal University Otuoke, Nigeria.

Keywords:

GIS mapping, γ-gamma radiation, Radiological health risk, NOGPS, Bayelsa

Abstract

The GIS mapping of the terrestrial radiation levels and estimation of the radiological health risk to human within the premises of Nigerian Content Development and Monitoring Board in Emeyal Bayelsa Sate of Nigeria have been conducted, using an alert monitor 200 nuclear radiation meter, arch ArcGIS software and geographical positioning system (GPS). The complex was delineated into thirty sampling spots. The measured average gamma radiation levels ranged from 0.006 (0.51  to 0.026 (2.19 ) with a mean value of 0.0148 (1.24 . The mean absorbed gamma dose rate and Annual equivalent dose rate (AEDR) are 128.76 and 0.16 while the mean excess lifetime cancer risk (ELCR) value is 0.56 x10-3. The results obtained in the study area indicated that the mean BIR levels, and corresponding estimated health risk parameters are above their recommended ambient permissible limit for the public. The estimated effective dosage to organs shows that liver receiving the least dose of 0.07mSvy-1 (11%) while testes got the highest dose of 0.12 mSvy-1 (18%). The overall results obtained showed that 58% BIR levels measured and their estimated risk parameters exceeded their recommended limits for the public, but agreed with some reported values in previous studies in the Niger Delta. The reported elevation as observed from the values may not necessarily establish any immediate radiological health risk, but call for caution on radiation possible long-term effects in future on the users of the facility

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Published

2024-03-22

How to Cite

Anekwe, . U. (2024). RADIOMETRIC MAPPING AND RADIOLOGICAL HEALTH RISK ASSESSMENT OF THE NIGERIAN OIL AND GAS PARK SCHEME PREMISES, EMEYAL1, SOUTH-SOUTH NIGERIA. Irish Journal of Environment and Earth Sciences, 8(2), 1–17. Retrieved from https://aspjournals.org/Journals/index.php/ijees/article/view/579

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