,
Avwiri Gregory Onomakere,
Ononugbo Chinyere Philomena
The exposure of humans and other living matters in the environment to ionizing radiation is traceable to natural and artificial activities such as oil and gas exploration. This study presents the result of assessment of ionizing radiation exposure and excess lifetime cancer risk in oil producing communities of Edo state Nigeria. An In-situ measurement of radiation exposure rate was done using well calibrated radiation detector (Radalert-100). From the ionizing radiation exposure rate, the absorbed dose, annual effective dose and excess lifetime cancer risk were calculated by standard methods. Results showed that the outdoor mean absorbed dose rates due to the ionizing radiation exposure rate in the various communities of the four LGAs, estimated were 137.837 nGyh-1, 98.457 nGyh-1, 92.83 nGyh-1, 75.95 nGyh-1, 78.76 nGyh-1, 118.15 nGyh-1, 73.13 nGyh-1 and118.15 nGyh-1 respectively for Ohamaha, Ologbo, Obaretin, River A, River B, EDSPADEC, Gelegele Town, and Flow Station. The obtained values for absorbed dose rate and excess lifetime cancer risk (ELCR) in Ohamaha, Ologbo, Obaretin, EDSPADEC and Flow station, are higher than the world average value of 89 nGyh-1 (UNSCEAR, 2000) 0.29 × 10- 3 respectively. The study concluded that the chance of the workers and those living around such locations to be exposed to cancer overtime in these communities is high due to the high value of ionizing radiation exposure rate and high values of excess lifetime cancer risk obtained in this study which is attributed to oil exploration activities within the study area. Hence, the implication is that there are possibilities of stochastic effects on the exposed individuals.
| Published in | International Journal of Oil, Gas and Coal Engineering (Volume 14, Issue 5) |
| DOI | 10.11648/j.ogce.20261405.11 |
| Page(s) | 108-116 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2026. Published by Science Publishing Group |
Exposure, In-situ, Exploration, Radiation, Value
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APA Style
Osakpamwan, I., James, M. C., Onomakere, A. G., Philomena, O. C. (2026). Assessment of Radiation Exposure Rate and Excess Lifetime Cancer Risk in Oil-Producing Communities of Edo State, Nigeria. International Journal of Oil, Gas and Coal Engineering, 14(5), 108-116. https://doi.org/10.11648/j.ogce.20261405.11
ACS Style
Osakpamwan, I.; James, M. C.; Onomakere, A. G.; Philomena, O. C. Assessment of Radiation Exposure Rate and Excess Lifetime Cancer Risk in Oil-Producing Communities of Edo State, Nigeria. Int. J. Oil Gas Coal Eng. 2026, 14(5), 108-116. doi: 10.11648/j.ogce.20261405.11
AMA Style
Osakpamwan I, James MC, Onomakere AG, Philomena OC. Assessment of Radiation Exposure Rate and Excess Lifetime Cancer Risk in Oil-Producing Communities of Edo State, Nigeria. Int J Oil Gas Coal Eng. 2026;14(5):108-116. doi: 10.11648/j.ogce.20261405.11
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Download@article{10.11648/j.ogce.20261405.11,
author = {Igbinake Osakpamwan and Mgbemere Chimmuanya James and Avwiri Gregory Onomakere and Ononugbo Chinyere Philomena},
title = {Assessment of Radiation Exposure Rate and Excess Lifetime Cancer Risk in Oil-Producing Communities of Edo State, Nigeria},
journal = {International Journal of Oil, Gas and Coal Engineering},
volume = {14},
number = {5},
pages = {108-116},
doi = {10.11648/j.ogce.20261405.11},
url = {https://doi.org/10.11648/j.ogce.20261405.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ogce.20261405.11},
abstract = {The exposure of humans and other living matters in the environment to ionizing radiation is traceable to natural and artificial activities such as oil and gas exploration. This study presents the result of assessment of ionizing radiation exposure and excess lifetime cancer risk in oil producing communities of Edo state Nigeria. An In-situ measurement of radiation exposure rate was done using well calibrated radiation detector (Radalert-100). From the ionizing radiation exposure rate, the absorbed dose, annual effective dose and excess lifetime cancer risk were calculated by standard methods. Results showed that the outdoor mean absorbed dose rates due to the ionizing radiation exposure rate in the various communities of the four LGAs, estimated were 137.837 nGyh-1, 98.457 nGyh-1, 92.83 nGyh-1, 75.95 nGyh-1, 78.76 nGyh-1, 118.15 nGyh-1, 73.13 nGyh-1 and118.15 nGyh-1 respectively for Ohamaha, Ologbo, Obaretin, River A, River B, EDSPADEC, Gelegele Town, and Flow Station. The obtained values for absorbed dose rate and excess lifetime cancer risk (ELCR) in Ohamaha, Ologbo, Obaretin, EDSPADEC and Flow station, are higher than the world average value of 89 nGyh-1 (UNSCEAR, 2000) 0.29 × 10- 3 respectively. The study concluded that the chance of the workers and those living around such locations to be exposed to cancer overtime in these communities is high due to the high value of ionizing radiation exposure rate and high values of excess lifetime cancer risk obtained in this study which is attributed to oil exploration activities within the study area. Hence, the implication is that there are possibilities of stochastic effects on the exposed individuals.},
year = {2026}
}
TY - JOUR T1 - Assessment of Radiation Exposure Rate and Excess Lifetime Cancer Risk in Oil-Producing Communities of Edo State, Nigeria AU - Igbinake Osakpamwan AU - Mgbemere Chimmuanya James AU - Avwiri Gregory Onomakere AU - Ononugbo Chinyere Philomena Y1 - 2026/09/20 PY - 2026 N1 - https://doi.org/10.11648/j.ogce.20261405.11 DO - 10.11648/j.ogce.20261405.11 T2 - International Journal of Oil, Gas and Coal Engineering JF - International Journal of Oil, Gas and Coal Engineering JO - International Journal of Oil, Gas and Coal Engineering SP - 108 EP - 116 PB - Science Publishing Group SN - 2376-7677 UR - https://doi.org/10.11648/j.ogce.20261405.11 AB - The exposure of humans and other living matters in the environment to ionizing radiation is traceable to natural and artificial activities such as oil and gas exploration. This study presents the result of assessment of ionizing radiation exposure and excess lifetime cancer risk in oil producing communities of Edo state Nigeria. An In-situ measurement of radiation exposure rate was done using well calibrated radiation detector (Radalert-100). From the ionizing radiation exposure rate, the absorbed dose, annual effective dose and excess lifetime cancer risk were calculated by standard methods. Results showed that the outdoor mean absorbed dose rates due to the ionizing radiation exposure rate in the various communities of the four LGAs, estimated were 137.837 nGyh-1, 98.457 nGyh-1, 92.83 nGyh-1, 75.95 nGyh-1, 78.76 nGyh-1, 118.15 nGyh-1, 73.13 nGyh-1 and118.15 nGyh-1 respectively for Ohamaha, Ologbo, Obaretin, River A, River B, EDSPADEC, Gelegele Town, and Flow Station. The obtained values for absorbed dose rate and excess lifetime cancer risk (ELCR) in Ohamaha, Ologbo, Obaretin, EDSPADEC and Flow station, are higher than the world average value of 89 nGyh-1 (UNSCEAR, 2000) 0.29 × 10- 3 respectively. The study concluded that the chance of the workers and those living around such locations to be exposed to cancer overtime in these communities is high due to the high value of ionizing radiation exposure rate and high values of excess lifetime cancer risk obtained in this study which is attributed to oil exploration activities within the study area. Hence, the implication is that there are possibilities of stochastic effects on the exposed individuals. VL - 14 IS - 5 ER -
Department of Physics, University of Port Harcourt, Choba, Nigeria
Department of Physics, University of Port Harcourt, Choba, Nigeria
Department of Physics, University of Port Harcourt, Choba, Nigeria
Department of Physics, University of Port Harcourt, Choba, Nigeria
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