Radiological Risk Estimates Due to Background Exposures in Selected Hospitals in South – East Nigeria
Archives of Current Research International · pp. 1–12 · Published 22 Jun 2017
10.9734/ACRI/2017/34244Abstract
Radiation is present everywhere on the Earth and humans are exposed to it without being aware of it. Exposure to natural ionizing radiation is inevitable as long as we live on Earth. An in-situ measurement of indoor and outdoor exposure dose rates of Federal Medical Center Umuahia (FMC Umuahia) and Federal Medical Center Owerri (FMC Owerri) were measured with well calibrated radiation meters (Radalert-100 and Digilert-200). The average indoor and outdoor exposure rates for Federal Medical Center Umuahia were 0.014±0.003 and 0.014±0.003 mRh-1, while that for Federal Medical Center Owerri were 0.012±0.002 mRh-1and 0.013±0.002 mRh-1. The values show that the exposure rates for Federal Medical Center Owerri is within the range of the World threshold value of 0.013 mRh-1, while that of FMC Umuahia is higher. The average indoor and outdoor absorbed dose rate measured at federal medical centre (FMC) Owerri are 106.7 and 104.7 nGyh-1 respectively while the average indoor and outdoor absorbed dose for Federal medical center (FMC) Umuahia are 120.1 and 116.8 nGyh-1 respectively. These values exceeded the world average of 89 nGyh-1. Also the results for average excess lifetime cancer risk (ELCR) calculated for indoor and outdoor for the hospitals show that ELCR for both indoor and outdoor exposures were all higher than the world acceptable value of 0.29x10-3, but the annual effective dose levels for the hospitals both indoor and outdoor were all below the 1 mSvy-1 maximum permissible limit for the public set by the International Commission on Radiological Protection (ICRP). Therefore there is need for the management of the hospitals to monitor radiation levels in other to take necessary precautions to avoid radiation levels getting to unacceptable levels.
References (7)
- 1 1990 Recommendations of the International Commission on Radiological Protection [DOI]
- 2 Radionuclide concentrations in soil and lifetime cancer risk due to gamma radioactivity in Kirklareli, Turkey [DOI]
- 3 The United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) [DOI]
- 4 Studies of the Terrestrial outdoor Gamma Dose Rate Levels in Ogun-Osun River Basins Development Authority Headquarters, Abeokuta, Nigeria [DOI]
- 5 Occupational radiation profile of oil and gas facilities during production and off-production periods in Ughelli, Nigeria
- 6 Measurement of Indoor and Outdoor Background Ionising Radiation Levels of Kwali General Hospital, Abuja [DOI]
- 7 Measurement of the Effective Dose Radiation at Radiology Departments of Some Hospitals in Duhok Governorate [DOI]
Cited by 1
Behzad Fouladi Dehaghi, Leila Ibrahimi Ghavam Abadi · Jundishapur Journal of Health Sciences · 2020
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