Assessment of natural radioactivity in commercial granites used in Turkey

Onargan, Turgay; Gür, Filiz; Kaya, Erol; Güneri, Sinem

doi:10.1080/10934529.2012.689548

Cited by 6 publications

(5 citation statements)

References 12 publications

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“…1, January 2021 that in Mouandza study the samples were taken from a location uranium main. Also, for the case of 232 Th, our findings showed a lower amount than any other studies (8)(9)(10)(19)(20)(21)(22)(23) . On the other hand the measured values for 40 K, were lower than all mention studies except Turkey (238.4 Bq.kg -1 ) and Greece (88.1 Bq.kg -1 ) (9,21) .…”

Section: Resultscontrasting

confidence: 85%

“…Country ) -1 )) and the average amount reported for the world in general but it was lower than the other parts of the world (8)(9)(10)(19)(20)(21)(22) . In a study by Mouandza et al (2018) the results showed that 74% of measured area had activity concentrations of 226 Ra higher than world average value (23) , however the present study reports this difference for about 40% of samples.…”

Section: Resultsmentioning

confidence: 81%

“…Several studies have measured the natural radioactivity of oil and gas exploration wastes in the world (5,(7)(8)(9)(10)(11) . The Khuzestan province, in southwest in the Iran, is rich in oil and gas areas.…”

Section: Introductionmentioning

confidence: 99%

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Measurement of exposure to radionuclides (40-K, 226-Ra, and 232-Th) in the oil and gas drilling industry

DeRis

Dehaghi

2021

Int J Radiat Res

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Background: Naturally occurring radioactivity is a root cause of human exposure to harmful radiation. The occupational exposure hazard due to natural radionuclides occurring in drilling wastes is especially important in this regard. In this study the concentration of radionuclides namely 232 Th, 226 Ra and 40 K were assessed in soil samples that were taken from various oil drilling areas. Methodology: 10 samples were collected and sealed for two months to ensure the secular equilibrium between 226 Ra and 232 Th, and their respective radioactive progenies. The concentration of radionuclides in samples was measured by gamma spectroscopy. Descriptive and analytical statistics were used in order to analyze the data. Results: the results showed the average absorbed dose rates (D), annual effective dose (AED), Radium equivalent activity (Raeq) and various hazard indexes(Hex, Hin and Iγ ) for samples were 38.22 nGy/h, 0.046 mSv/y, 81.032 Bq/Kg, 0.21, 0.31 and 0.59, respectively. Conclusions: The mean activity concentrations were lower than the world mean values, according to the radiation protection criteria that identified by UNSCEAR.

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Section: Resultscontrasting

confidence: 85%

Section: Resultsmentioning

confidence: 81%

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Measurement of exposure to radionuclides (40-K, 226-Ra, and 232-Th) in the oil and gas drilling industry

DeRis

Dehaghi

2021

Int J Radiat Res

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“…The literature data report that some extractive industries, such as mining and oil and gas production, present in western Kazakhstan could potentially increase the natural radiation background by concentrating the amount of natural radiation above normal background levels [ 42 , 43 , 44 , 45 , 46 , 47 ]. Some studies performed in western Kazakhstan have shown that the region is characterized by the highest average annual effective external dose compared to the national average.…”

Section: Discussionmentioning

confidence: 99%

Background Level of Unstable Chromosome Aberrations in the Kazakhstan Population: A Human Biomonitoring Study

Kenzhina

Mamyrbayeva

Лукашенко

et al. 2022

IJERPH

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Kazakhstan is known as a country with a complex radioecological situation resulting from different sources such as a natural radiation background, extensive activities of the industrial system of the former Soviet Union and a well-known testing of nuclear power weapons occurred in the Semipalatinsk Test Site (STS) area. The present study focuses on the assessment of the background of dicentric chromosomes in Kazakhstan’s population, which is the starting point in the dose assessment of irradiated people, since the baseline level of spontaneous dicentrics can vary significantly in different populations. In this context, aiming to determine the background frequency of chromosome aberrations in the population of Kazakhstan, considering the heterogeneity of natural radiation background levels of its large territory, a selection of 40 control subjects living in four cities of North, South, West and East Kazakhstan was performed. The cytogenetic study on the selected groups showed fairly low background frequency values of chromosome aberrations (0.84 ± 0.83 per 1000 cells), comparable with other data in the literature on general populations, reporting background frequency values between 0.54 and 2.99 per 1000 cells. The obtained results should be taken into account when constructing the dose–effect calibration curve used in cytogenetic biodosimetry, as a “zero” dose point, which will reduce the uncertainty in quantifying the individual absorbed dose in emergency radiological situations.

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“…"Natural radioactivity" is observed all around the world, particularly in the geological environment consisting of rocks, soils, plants, fluids, and gas as well as the artificial environment consisting of man-made structures [1][2][3][4][5][6][7][8][9]. People living in environments containing natural radioactivity are exposed to different doses of radiation.…”

Section: Introductionmentioning

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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Assessment of natural radioactivity in commercial granites used in Turkey

Cited by 6 publications

References 12 publications

Measurement of exposure to radionuclides (40-K, 226-Ra, and 232-Th) in the oil and gas drilling industry

Measurement of exposure to radionuclides (40-K, 226-Ra, and 232-Th) in the oil and gas drilling industry

Background Level of Unstable Chromosome Aberrations in the Kazakhstan Population: A Human Biomonitoring Study

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

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