Assessment of radioactivity levels and potential radiation health hazards of Madsus granites and associated dikes nearby and around Ruwisat village, South Sinai, Egypt

Heikal, Mohamed Th. S.; Top, Gülcan

doi:10.1016/j.jafrearsci.2018.01.005

Cited by 17 publications

(12 citation statements)

References 20 publications

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“…Multivariate statistical studies on the interpretation of radioactivity data and radiological parameters are quite important [49][50][51]. In this regard, multivariate statistical analyses are useful, and these tools are required to explain the data.…”

Section: Discussionmentioning

confidence: 99%

Estimation of Natural Radionuclides’ Concentration of the Plutonic Rocks in the Sakarya Zone, Turkey Using Multivariate Statistical Methods

et al. 2020

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The study aimed to determine the natural radioactivity levels of 226Ra, 232Th, and 40K by the Gamma-Ray spectrometry method, and radiological hazard parameters of the plutonic rocks in the Western and Central Sakarya Zone and to analyze the data using multivariate statistical methods. The average radiological values of samples were determined as 40K (1295.3 Bq kg−1) > 232Th (132.1 Bq kg−1) > 226Ra (119.7 Bq kg−1). According to the skewness values of the distributions of the examined radionuclides, 226Ra (2.1) and 232Th (0.7) seemed to be positively right-skewed while 40K (−0.2) had a negatively right-skewed histogram. On the other hand, the following kurtosis values were calculated for the distributions: 226Ra (5.8 > 3), 232Th (−0.7), and 40K (−0.8). Kolmogorov–Smirnov and Shapiro–Wilk tests were applied to the data to test their normality. Therefore, Spearman’s correlation coefficient method was performed. The radionuclides of 226Ra and 232Th were found to have a positive correlation with radiological hazard parameters of the samples. 2 (two)-related factors identified, and the cumulative value was calculated to be 98.7% on the basis of the Scree Plot. According to the hierarchical cluster analysis, the samples that are grouped with those from Camlik region are prominent. The average radioactivity values of Camlik, Sogukpinar, Karacabey, and Sogut (except for 232Th) regions were detected to be higher than the world averages while the value of 40K was also found to be higher than the average values of various countries in the world.

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Section: Discussionmentioning

confidence: 99%

Estimation of Natural Radionuclides’ Concentration of the Plutonic Rocks in the Sakarya Zone, Turkey Using Multivariate Statistical Methods

et al. 2020

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“…Due to that reason, NORM (naturally occurring radioactive material) issue has been integrated into rare earth elements (REEs) related safety requirements to reduce radiation exposure [13][14][15][16]. Re-mineralization of the radioactive elements within shear zones causes a higher level of radioactivity [17][18][19]. Moreover, strain-correlated fracturing that happens in the zones may induce differential element mobility, redistribution and size changing of the radioactive minerals.…”

Section: Arab Journal Of Nuclear Sciences and Applicationsmentioning

confidence: 99%

“…Radiological hazards due to long-term exposure to the radiation emitting from granites also have been determined by many authors [17,19,[22][23][24][25][26][27][28].…”

Section: Arab Journal Of Nuclear Sciences and Applicationsmentioning

confidence: 99%

Insight on Radiological Risk Assessment and its Statistical Evaluations for Abu Dabbab Albite Granite Mining area, Central Nubian Shield, Egypt

Heikal

Gomaa²,

Monsef

et al. 2018

Arab Journal of Nuclear Sciences and Applications

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The deals with the determination of the possible radiological risks by the help of internationally approved health hazard addressed by field and laboratory gamma measurements performed for surface, adit and core samples from Gabal Abu Dabbab albite granite Ta-Nb-Sn mining area. The studied area is located some 50 km northwestern Marsa Alam city within the central Nubian Shield of Egypt. The field measurements were taken by portable RS-230 γ-ray spectrometer and the laboratory spectrometric analyzes were verified by HPGe detector for the radioactivity measurements of 238 U, 226 Ra, 232 Th and 40 K (Bq/kg) in the studied samples to assess their radiation hazards. Statistical depicting groups, summary statistics and two sample comparison tests (t-test and Mann-Whitney test) were used for statistical evaluations. The gamma-ray radioactivitylevels of surface samples reached 94.68, 61.64, 45.10 and 1051.62 Bq/kg for 238 U, 226 Ra, 232 Th and ⁴⁰K respectively, whereas adit samples reached 206.47, 113.16, 198.7, 939.43 Bq/kg and core samples reach to 108.23, 54.17, 43.47, 939.42 respectively. Almost values of the radiation hazard indices in the studied samples were under the health hazard limits.

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“…Radioactivity is present everywhere since the creation of the earth (billions of years) [1.2]. It is mostly found in felsic plutonic, and volcanic igneous rocks [3,4,5].…”

Section: Introductionmentioning

confidence: 99%

“…Granites contain variable amounts of Ra, Th, and K concentrations, in which many works of literature stress the radioactivity levels in the felsic igneous rocks [3,4,5]. Almost granitic rocks contain accessory minerals such as zircon, monazite, xenotime, allanite, apatite, and K-feldspars that they are bearing radioactive elements [6,7,8].…”

Section: Introductionmentioning

confidence: 99%

Geochemical and Spectrometric Characteristics of Natural Radioactivity Levels (238-U, 232-Th, 40-K) of Monzo-Syenogranites from Wadi El-Nabi' Area, Egyptian Nubian Shield

Heikal

El-Ela

Shereif

et al. 2022

Arab Journal of Nuclear Sciences and Applications

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Wadi El-Nabi' area (῀400km 2 ) constitutes Precambrian intrusive-extrusive complex related to the Egyptian-Nubian Shield (ENS). It includes ophiolitic serpentinites, felsic-mafic metavolcanics (bimodal metavolcanics), metapyroclastics (metatuffs), metagabbro-diorite complex, olivine gabbros, and troctolites (young gabbros), and monzo-syenogranites (younger granites). The field and lab radiometric measurements of radioelements, and their geochemical characteristics were carried out for (15) samples of monzo-syenogranites (55 km 2 ) by RS-230 γ-ray spectroscopy, and HpGe detector. Chemical analyses by ICP-MS are also obtained for the studied granitic rocks to verify the concentrations of specific elements and their inter-relationships with ( 238 U (ppm), 232 Th (ppm), and 40 K (%). Regarding the RS-230 measurements, the of radionuclide concentrations range are (4-6.6 ppm) for eU, (8.7-14.75 ppm) for eTh, and (3.62-5.15%) for K%. On the other hand, the chemical analysis for 238 U, 232 Th (ppm), and 40 K%, of monzo-syenogranites give rise to 3.04 ppm for 238 U, 9.44 ppm for 232 Th, and 1.82 % for 40 K%. The field, and lab radiometric measurements, chemical parameters of P, and D-factors ( 226 Ra/ 238 U, and Uc/Ur respectively) give rise to the disequilibrium state is well evident. On the other hand, the chemical interpretations given by multi-variation diagrams among 238 U, 232 Th, and 40 K, as well as selected elements indicate that the origin of the studied radioactive elements are related to the magmatic process, followed by the later post-magmatic process (hydrothermal).

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Assessment of radioactivity levels and potential radiation health hazards of Madsus granites and associated dikes nearby and around Ruwisat village, South Sinai, Egypt

Cited by 17 publications

References 20 publications

Estimation of Natural Radionuclides’ Concentration of the Plutonic Rocks in the Sakarya Zone, Turkey Using Multivariate Statistical Methods

Estimation of Natural Radionuclides’ Concentration of the Plutonic Rocks in the Sakarya Zone, Turkey Using Multivariate Statistical Methods

Insight on Radiological Risk Assessment and its Statistical Evaluations for Abu Dabbab Albite Granite Mining area, Central Nubian Shield, Egypt

Geochemical and Spectrometric Characteristics of Natural Radioactivity Levels (238-U, 232-Th, 40-K) of Monzo-Syenogranites from Wadi El-Nabi' Area, Egyptian Nubian Shield

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