Baseline Radioactivity in the Soil of Evangel Take-Off Campus, Evangel University, Nigeria, and Its Associated Health Risks

Ugbede, Fredrick Oghenebrorie; Okoye, Okechukwu Nnaemeka N.; Akpolile, Anita Franklin; Oladele, Blessing Bosede

doi:10.1007/s42250-021-00254-8

Cited by 8 publications

(6 citation statements)

References 36 publications

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“…Also, the soil radionuclides’ activity concentrations were comparable to other related studies conducted within and outside Nigeria. 4, 43 - 51 Eke et al 4 and Olagbaju et al 51 obtained lower activity concentrations of 226 Ra ( 238 U) compared to the present study. Egunyinka et al 42 and Ugbede et al 47 recorded higher activity concentrations of 226 Ra ( 238 U) compared to the present study.…”

Section: Resultscontrasting

confidence: 44%

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Assessment of Radiation Hazard Indices Due to Natural Radionuclides in Soil Samples from Imo State University, Owerri, Nigeria

Eke,

Akomolafe,

Ukewuihe

et al. 2024

Environ�Health�Insights

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A total of 30 soil samples from different sampling points at Imo State University (IMSU), Owerri, Nigeria were collected for the study. The activity concentrations of naturally occurring radionuclides (238U, 232Th, and 40K) were measured in the samples by gamma-ray spectrometry using NaI (TI) detector. Absorbed dose rate (D), annual effective dose (AED), radium equivalent activity (Raeq), and radiological hazard index parameters (activity utilization index [AUI], external hazard index [Hex], internal hazard index [Hin], and excess lifetime cancer risk [ELCR]) due to the naturally occurring radionuclides were determined. The mean activity of 238U, 232Th, and 40K were found to be 20.32 ± 3.22, 22.55 ± 0.68, and 91.63 ± 1.54 Bqkg−1 which were lower than the world average reference mean values of 33, 45, and 420 Bqkg−1for 238U, 232Th, and 40K, respectively, as reported by the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR). The average value of D, Raeq, AUI, ELCR, Hex, and Hin in the soil samples was 26.86 ± 1.97 nGyh−1, 59.62 ± 4.14 Bqkg−1, 0.42 ± 0.03, 0.14 ± 0.01 (×10−3), 0.16 ± 0.01, and 0.22 ± 0.02, respectively. The annual effective dose to the general public was 33.07 ± 2.40 μSvy−1. This value lies well below the average worldwide reference value of 0.7 mSvy−1, as reported by UNSCEAR. Soil samples from IMSU pose no significant radiological health hazards to the university community.

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Section: Resultscontrasting

confidence: 44%

“…4, 43 - 51 Eke et al 4 and Olagbaju et al 51 obtained lower activity concentrations of 226 Ra ( 238 U) compared to the present study. Egunyinka et al 42 and Ugbede et al 47 recorded higher activity concentrations of 226 Ra ( 238 U) compared to the present study.…”

Section: Resultscontrasting

confidence: 44%

Assessment of Radiation Hazard Indices Due to Natural Radionuclides in Soil Samples from Imo State University, Owerri, Nigeria

Eke,

Akomolafe,

Ukewuihe

et al. 2024

Environ�Health�Insights

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“…Additionally, the radionuclides’ chemical characteristics have a significant impact on how they migrate. The radioactivity levels of the examined soil are also influenced by the weathered components of the nearby deposited rocks [ 45 ]. The specific levels depend on the type of rock the soil is made of.…”

Section: Resultsmentioning

confidence: 99%

Measurement of radioactivity in soils of Karamjal and Harbaria mangrove forest of Sundarbans for establishment of radiological database

Siraz,

A. M.,

Alam

et al. 2023

PLoS ONE

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This work presents the first in-depth study of soil radioactivity in the mangrove forest of Bangladesh part of the Sundarbans. It used HPGe gamma-ray spectrometry to measure the amount of natural radioactivity in soil samples from Karamjal and Harbaria sites of the world’s largest mangrove forest. The activity concentrations of most of the 226Ra (14±2 Bqkg-1 to 35±4 Bqkg-1) and 232Th (30±5 Bqkg-1 to 50±9 Bqkg-1) lie within the world average values, but the 40K concentration (370± 44 Bqkg-1 to 660±72 Bqkg-1) was found to have exceeded the world average value. The evaluation of radiological hazard parameters revealed that the outdoor absorbed dose rate (maximum 73.25 nGyh-1) and outdoor annual effective dose (maximum 0.09 mSvy-1) for most samples exceeded the corresponding world average values. The elevated concentration of 40K is mainly due to the salinity intrusion, usage of fertilizers and agricultural runoff, and migration of waste effluents along the riverbanks. Being the pioneering comprehensive research on the Bangladesh side of the Sundarbans, this study forms a baseline radioactivity for the Sundarbans before the commissioning of the Rooppur Nuclear Power Plant in Bangladesh.

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“…In addition, DNA damage from ionizing radiation can cause mutation [28]. Recently, studies on natural radionuclide origin and behavior [6,29,30], spatial distribution of soil, sediments, water and plants, [31][32][33][34], food crops [35] and soil effects of phosphorus ores and fertilizers [1,36] have dominated many scientific fora. Reports of radionuclide enrichment in some sea foods and snails also exist [32,37,38].…”

Section: Introductionmentioning

confidence: 99%

“…1 , C n represents count rate (counts per second) abd C fk denotes C=calibration factor of the detecting system.…”

mentioning

confidence: 99%

Assessment of radionuclide distribution and associated radiological hazards of soils in Mayo-Belwa, Adamawa state

Catherine,

Meludu,

Idowu

et al. 2023

Recent Adv. Nat. Sci

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Mayo-Belwa Local Government Area has been reported to have deposits of Uranium; hence this study was carried out to measure radionuclide activities in Mayo-Belwa soils and to monitor their potential impact on human health. Soils from a depth of 10 cm were collected from each location, using CANBERA NaI (Tl) detector, the activity concentration of radionuclides of 10 soil samples was measured. The radionuclide concentration ranged between 72.7069 - 116.8504 Bq.kg−1 for 238U (measured by 226Ra activity), 148.9168 -981.4994 Bq.kg−1 for 40K and 22.3332 - 108.5203 Bq.kg−1for 232Th. The gamma absorbed dose rate, annual effective dose rate, ranged between 61.3932138.1076 nGyh−1 , 0.0830 - 0.211 mSvy−1 with mean values of 95.1762 ± 21.5257 and 0.1216±0.0359 respectively. The values obtained were compared with the reported data from UNSCEAR, 2000 and ICRP 2005. The excess lifetime cancer risk ranged between 0.00026-0.00061 with an average value of 8.44×10−4. The gamma, internal and external hazard indices ranged between 0.4631-1.0975, 0.5969- 0.9978 and 0.3601-0.8087 respectively. However, dose rates recorded in all locations were above the 60 nGyh−1 recommended limits by UNSCEAR 2000. Furthermore, Ganglare had a gamma index above 1, implying a significant radiation hazard. Also, the average excess lifetime cancer risk (ELCR) of 0.844 × 10−3 was relatively high (t < 0.05) and compared to the world average value of 0.29 ×10−3. With the help of this study, we were able to establish the fundamental facts about the levels of radioactivity and related radiological dangers that exist in the soil of Mayo-Belwa Local Government.

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Baseline Radioactivity in the Soil of Evangel Take-Off Campus, Evangel University, Nigeria, and Its Associated Health Risks

Cited by 8 publications

References 36 publications

Assessment of Radiation Hazard Indices Due to Natural Radionuclides in Soil Samples from Imo State University, Owerri, Nigeria

Assessment of Radiation Hazard Indices Due to Natural Radionuclides in Soil Samples from Imo State University, Owerri, Nigeria

Measurement of radioactivity in soils of Karamjal and Harbaria mangrove forest of Sundarbans for establishment of radiological database

Assessment of radionuclide distribution and associated radiological hazards of soils in Mayo-Belwa, Adamawa state

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