Background radiation study of Offa industrial area of Kwara State, Nigeria

Nwankwo, LI; Akoshile, CO

doi:10.4314/jasem.v9i3.17360

Cited by 7 publications

(6 citation statements)

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“…These values obtain from the study were compared with the international standard as shown in Figure 3 & Figure 4. The values obtained in Figure 3 show a clear departure of the values measured in these mining sites from ambient background ionizing radiation levels and the values are higher than those obtained in similar solid mineral mining sites in Abia State South-East of Nigeria and the background radiation level of Offa industrial area of Kwara State [6] [14]. This is a clear indication that the mining environment of these solid minerals is not totally safe as residential area, but ironically, most of these areas has become a commercial environment where different business are carried out and many reside in this area.…”

Section: Resultsmentioning

confidence: 99%

GIS Mapping and Background Ionizing Radiation (BIR) Assessment of Solid Mineral Mining Sites in Enugu State, Nigeria

Osimobi¹,

Agbalagba²,

Avwiri³

et al. 2015

OALib

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A study of the external background ionizing radiation (BIR) levels in eight solid mineral mining sites in Enugu State has been carried out using two Digilert radiation monitors Radalart-50 and Radalart-100. Thirty two readings of four sampling in each point were taken at different solid mineral sites of the state following standard procedure. The measured BIR levels obtained ranged from 0.012 mR/hr in Nkpologwu silica mining site to 0.028 mR/hr in clay mining site in Enugu-Ekulu with an average of 0.018 ± 0.004 mR/hr, while the corresponding calculated equivalent dose rate ranged from 1.0 mSv/yr to 2.35 mSv/yr with a mean value of 1.51 ± 0.04 mSv/yr. The result obtained indicates that the average exposure level of the studied area is 38.5% higher than the international standard. This suggests the possibility of the presence of radionuclide in the solid minerals mined in Enugu state. However, the values obtained may not cause immediate health challenge to miners and those engaging in commercial activities around these mining sites in Enugu, but may result in long-term health side-effects to residence and miners who put in over twenty-five years in the job. From the forgoing, it is recommended that control mechanism should be adopted for the members of the public, residence, commercial traders as well as miners working in these sites, and to protect the environment.

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Section: Resultsmentioning

confidence: 99%

GIS Mapping and Background Ionizing Radiation (BIR) Assessment of Solid Mineral Mining Sites in Enugu State, Nigeria

Osimobi¹,

Agbalagba²,

Avwiri³

et al. 2015

OALib

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“…Natural background radiation is inevitably present in our environment. Natural Background radiation is the radiation of man's natural environment, consisting of what comes from Cosmic rays, the naturally radioactive elements of the earth and from within man's body (Nwankwo andAkoshile 2005, UNSCEAR 2000). Human beings are exposed to background radiation that stems both from natural and man-made sources.…”

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confidence: 99%

Assessment of indoor and outdoor radiation levels and human health risk in Sheda Science and Technology Complex and its environ, Abuja, Nigeria

James¹,

Moses²,

Akueche³

et al. 2020

Journal of Applied Sciences and Environmental Management

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A study to assess the Indoor and Outdoor Background Ionizing Radiation (BIR) of Sheda Science and Technology Complex, Abuja has been conducted. An in-situ measurement using a portable factory calibrated radiation dose rate meter, Radiagem 2000, was used to ascertain the radiation level. The measured radiation dose rates were used to evaluate the radiological health hazards and radiation effective doses to different body organs using well established radiological relations. The results shows that the total Dose Rate (indoor and outdoor), the Total Annual Equivalent Dose (indoor and outdoor), total Annual Effective Dose Equivalent (indoor and outdoor) and the total Excess Lifetime Cancer Risk (indoor and outdoor) are 0.113±0.022 (µSv/h), 0.071±0.016 (µSv/h), 0.794±0.155 mSv/y, 0.0.124±0.074 mSv/y, 0.556±0.109 mSv/y, 0.087±0.020 mSv/y, 1.945±0.379, 0.304±0.104 respectively for the three zones. The dosage to organs received shows that the testes have the highest dose while the liver has the lowest dose (indoor and outdoor) for the three zones. Generally the study shows that the Annual Effective Dose Equivalents were within the permissible limits of 1 mSv/y for general public exposure recommended by the (ICRP). Also, the effective doses to different body organs are all below the recommended limits of 1 mSv/y. The calculated Excess Lifetime Cancer Risk values indicates that the chance of contacting cancer by workers and residents of the study area is not probable hence the study area could be said to be radiologically safe.

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“…The study of external background radiation was carried out in Offa industrial area of Kwara State [16]. Two Digilert radiation monitors were used at five different stations.…”

Section: Natural Radioactive Deposit In Nigeriamentioning

confidence: 99%

Review of Distribution of Natural Radiation in Some Parts of Nigeria

Ifayefunmi¹,

Kupriyanov²,

Mirzeabasov³

et al. 2019

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Activity concentrations of natural radioactivity of 40 K, 238 U, 226 Ra, and 232 Th were reviewed in connection with rock, soil, sediments, and water in the Northern and Southern parts of Nigeria to estimate the radiation dose acquire by the population. The activity concentrations of the various radionuclides from rock samples collected from different locations were generally higher than those of other environmental matrices. Comparative distribution maps of 40 K, 238 U, and 232 Th show the distribution of activity concentration in the Northern and Western part of Nigeria.

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Background radiation study of Offa industrial area of Kwara State, Nigeria

Cited by 7 publications

References 0 publications

GIS Mapping and Background Ionizing Radiation (BIR) Assessment of Solid Mineral Mining Sites in Enugu State, Nigeria

GIS Mapping and Background Ionizing Radiation (BIR) Assessment of Solid Mineral Mining Sites in Enugu State, Nigeria

Assessment of indoor and outdoor radiation levels and human health risk in Sheda Science and Technology Complex and its environ, Abuja, Nigeria

Review of Distribution of Natural Radiation in Some Parts of Nigeria

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