Measurement of natural radioactivity and radiological hazard evaluation in the soil samples collected from Owo, Ondo State, Nigeria

Aladeniyi, Kehinde; Olowookere, C. J.; Blessing, Oladele B.

doi:10.1080/16878507.2019.1593675

Cited by 22 publications

(10 citation statements)

References 36 publications

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“…Table 4 summarizes H*(10) or absorbed dose rate in air of some countries or regions reported in the references. After deducting the contribution of cosmic rays, the field measurements of H*( 10) are within the absorbed dose rate in air range of other countries and regions (10.7-750 nGy•h −1 ) (Aladeniyi et al, 2019;Antović et al, 2012;Durusoy & Yildirim, 2017;Gabdo et al, 2015;Qu et al, 2008;Shilfa et al, 2020).…”

Section: Ambient Dose Equivalent Rate H*(10)mentioning

confidence: 86%

“…Table 2 shows soil radionuclide activity concentrations from some countries or regions in the references. In contrast, the radionuclide activity of uranium tailings pond is in the natural soil radionuclide activity concentration in these countries and regions ( 238 U: 0.58-88.1, 35.7-2100.42 Bq•kg −1 ) (Aladeniyi et al, 2019;Baeza et al, 1992;Durusoy & Yildirim, 2017;El-Gamal et al, 2013;Gabdo et al, 2015;Kessaratikoon et al, 2019;Sivakumar, 2014;Wang et al, 2012).…”

Section: Soil Radionuclide Activity Concentrationmentioning

confidence: 94%

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Measurement and spatial distribution pattern of natural radioactivity in a uranium tailings pond in Northwest China

Yong

Liu

et al. 2021

Journal of Radiation Research and Applied Sciences

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Numbers of radioactive tailings were produced in the process of uranium mining and milling.In this study,radiation environment monitoring was carried out on a decommissioned uranium mining and milling tailings pond in northwest China, and the governance effect and operation status of the tailings pond was investigated. The soil radionuclide activity concentration and ambient dose equivalent rate (H * (10)) were measured, and soil surface radon exhalation rate was calculated. The results shown that in the tailings pond and its surrounding area, the average soil radionuclide activity concentration was respectively 238 U: 42.64±11.17 Bq•kg -1 , 226 Ra: 45.47±13.56 Bq•kg -1 , 232 Th: 33.30±7.33 Bq•kg -1 , 40 K: 631.33±72.05 Bq•kg -1 , the average H * (10) was 63.32±6.46 nSv•h -1 , and the average radon exhalation rate was 40.46±11.29 mBq•m -2 •s -1 .Radionuclide activity concentration, H * (10) and radon exhalation rate were within the range of world natural background. Spatial distribution of radioactivity was analyzed by OK interpolation based on the investigated data. According to the measured results and spatial interpolation analysis,the decommissioning governance effect of the uranium tailings reservoir is good, the operation is normal, and there is no migration or diffusion situation of radionuclides in the pond has been found.

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Section: Ambient Dose Equivalent Rate H*(10)mentioning

confidence: 86%

Section: Soil Radionuclide Activity Concentrationmentioning

confidence: 94%

Measurement and spatial distribution pattern of natural radioactivity in a uranium tailings pond in Northwest China

Yong

Liu

et al. 2021

Journal of Radiation Research and Applied Sciences

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“…Statistical analysis and multivariate statistical methods were used to reveal the correlation between the variables of marble and their effect on the distribution of natural radionuclides [6,16,23,28,[34][35][36][37][38][39][40][41][42][43][44][45][46][47]. Firstly, descriptive statistics were determined and then multivariate statistical analyses, such as correlation, factor, cluster, and regression analysis, were performed.…”

Section: Multivariate Statisticsmentioning

confidence: 99%

Investigation of the Effect of Hydrothermal Waters on Radionuclide Activity Concentrations in Natural Marble with Multivariate Statistical Analysis

et al. 2020

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The study aims to investigate the effects of Burdur (Turkey) marble on human health by interpreting their radioactivity concentration (226Ra, 232Th, and 40K), radiological hazard parameters, chemical concentration, physical properties, and all data related to these features by using multivariate statistical methods. Chemical and radionuclide analyses were performed on marble samples. The data were interpreted by statistical analysis. According to the regression model, an increase in the concentration of vanadium carried to the environment by hydrothermal waters causes a 4.452-fold higher concentration of 226Ra. The R2 value of the model was 0.64 and it was statistically significant. The maximum concentration of 226Ra in Isparta Davraz Beige sample (M7) exceeded the values of some countries’ standards. Except for M7, the analyzed sorts of marble can be used safely in dwellings and public buildings.

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“…In the laboratory, each sample was sieved so as to get rid of any unwanted materials including vegetation, stones, and debris. e samples were totally dried in an oven at 105°C for a day until a uniform weight was attained [4,17,18] so as to fully get rid of any water content. Dry sand was thereafter crushed and pulverized to uniformity, and then it was sieved using a 2 mm mesh sieve.…”

Section: Sample Collection and Preparationmentioning

confidence: 99%

Assessment of Levels of Natural Radioactivity in Sand Samples Collected from Ekalakala in Machakos County, Kenya

Munyao

Ketui

Otieno

et al. 2020

The Scientific World Journal

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Construction sand is naturally polluted with radionuclides of terrestrial origin. In this study, specific activities of 238U, 232Th, and 40K in 30 sand samples collected along the Ekalakala River, Machakos County, Kenya, were measured using a high-purity germanium γ-ray spectrometer. The specific activities ranged between 9.7 Bqkg−1 and 24.0 Bqkg−1, 11.5 Bqkg−1 and 26.2 Bqkg−1, and 820 Bqkg−1 and 1850 Bqkg−1 for 238U, 232Th, and 40K, respectively. While the mean specific activities for 238U and 232Th were less than half of the world average values of 33 Bqkg−1 and 45 Bqkg−1, respectively, the average specific activity of 40K was significant since it was three times the global mean value of 420 Bqkg−1. A calculated absorbed radiation dose rate for the sand varied between 46.8 nGyh−1 and 94.2 nGyh−1 with a mean of 68.5 ± 13.3 nGyh−1. This is not significantly different from the world average dose rate of 60 nGyh−1 for geological samples. The AEDR and Hex had maximum values of 0.29 mSvy−1 and 0.52, respectively, both within the recommended limits of radiation exposure for members of the general public. Based on these results, the sand from Ekalakala River does not pose significant health implication to the sand harvesters as well as the inhabitants of the houses constructed using this sand.

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Measurement of natural radioactivity and radiological hazard evaluation in the soil samples collected from Owo, Ondo State, Nigeria

Cited by 22 publications

References 36 publications

Measurement and spatial distribution pattern of natural radioactivity in a uranium tailings pond in Northwest China

Measurement and spatial distribution pattern of natural radioactivity in a uranium tailings pond in Northwest China

Investigation of the Effect of Hydrothermal Waters on Radionuclide Activity Concentrations in Natural Marble with Multivariate Statistical Analysis

Assessment of Levels of Natural Radioactivity in Sand Samples Collected from Ekalakala in Machakos County, Kenya

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