Radionuclide determination and radioactivity evaluation of surface soil samples collected along the Erçek Lake basin in eastern Anatolia, Turkey

Yıldız, Nergiz; Oto, Berna; Turhan, Şeref; Uğur, F. A.; Gören, E.

doi:10.1016/j.gexplo.2014.07.013

Cited by 19 publications

(5 citation statements)

References 18 publications

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“…It is a product of fallout radioactivity. The 137 As shown in table 3, the radioactivity concentrations in soil samples were comparable to other studies in various regions (8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(35)(36)(37)(38)(39)(40) . Karadeniz (8,12,17,19,25) .…”

Section: Resultssupporting

confidence: 82%

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Determination of radioactivity levels of soil samples and the excess of lifetime cancer risk in Rize province, Turkey

Dizman¹,

Görür²,

Keser³

2016

IJRR

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Human beings are exposed to background radiation that stems both from natural and manmade sources. Natural background radiation, which is equivalent to 2.4 mSv per person, makes up approximately 80% of the total radiation dose a person is exposed in a year (1). Soil radionuclide activity concentration is one of the main determinants of the natural background radiation. Volcanic geographic structures as well as rocks that are rich in phosphate, granite and salt contain natural radionuclides like 238 U, 232 Th and 40 K. When rocks are disintegrated through natural processes, radionuclides are carried to the soil by rain and .lows (2). The natural radioactivity in soil comes from 226 Ra, 232 Th and from natural 40 K. Some other terrestrial radionuclides, including those of the 235 U series, 87 Rb, 138 La, 147 Sm and 176 Lu exist in nature but at such low levels that their contributions to the dose in the humans are small. Arti.icial radionuclides can also be present such as 137 Cs, resulting from fallout from weapons testing. 137 Cs is a .ission product which is formed through nuclear tests and accidents. The deposition of 137 Cs in soil is important since its half-life is 30.2 years and it has a gamma emission of 661 keV (3). The radiological

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Section: Resultssupporting

confidence: 82%

“…Measuring terrestrial gamma dose rates is also essential since gamma radiation provides information concerning excess lifetime cancer risks. Yet in Turkey, there are only a limited number of studies which evaluate soil radioactivity and terrestrial gamma dose rates (8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25) .…”

mentioning

confidence: 99%

Determination of radioactivity levels of soil samples and the excess of lifetime cancer risk in Rize province, Turkey

Dizman¹,

Görür²,

Keser³

2016

IJRR

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“…The knowledge of radionuclides distributions in the sediments acts an essential part in monitoring of environmental contamination and assessment of radiological hazard arising from natural sources. For this purpose, in the recent years many studies give an importance to the measurements of the activity concentrations of natural radionuclides and their hazard on human health [1][2][3][4][5][6][7][8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Levels and effects of natural radionuclides in sediment banks of Rhumel River (Northeast Algeria)

Bouhila

Benrachi

Ramdhane

2018

Cumhuriyet Science Journal

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Activity concentrations of natural radionuclides in Boumerzoug River sediment (the main tributary of Rhumel river) have been measured using high resolution HPGe detector. The activity concentrations of the samples were range from 16.662.32 Bq/kg to 43.484.03 Bq/kg with mean value of 26.641.33 Bq/kg for 226 Ra, 20.011.98 Bq/kg to 32.713.85 Bq/kg with the mean value 25.951.46 Bq/kg for 232 Th and 81.7033.59 Bq/kg to 259.2038.80 Bq/kg with the mean value 164.5011.30 Bq/kg for 40 K. These values were used to estimate the radiation hazard indices. The absorbed dose and annual effective dose were evaluated to assess the radiation risk due to the use of these sediments.

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“…The activity concentrations of 226 Ra, 228 Ra, and 40 K in the BMW samples were measured using a γ-ray spectrometer with a p-type HPGe coaxial detector (ORTEC GEM50P4-83) with an energy resolution of 1.9 keV at a 1.33 MeV γ-ray line of 60 Co and a relative efficiency of 50%. , The detector is shielded with a cylindrical lead container of 10 cm to minimize the background radiation. It is connected to the detector interface module and a full-featured 16k multichannel digital spectrum analyzer with advanced digital signal processing.…”

Section: Methodsmentioning

confidence: 99%

Natural Radionuclides in Bottled Mineral Waters Consumed in Turkey and Their Contribution to Radiation Dose

et al. 2022

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Bottled natural mineral water (BMW) consumption in Turkey is increasing every year. Depending on the local geology from which the water is extracted, BMW could be enhanced with natural radionuclides. In this study, the activity concentrations of natural radionuclides in 58 BMW samples of 25 different brands marketed in Turkey were measured using a γ-ray spectrometer with high-purity germanium (HPGe) detector. The average activity concentrations of 226 Ra, 228 Ra, and 40 K in BMW samples were found as 0.4, 0.5, and 4.3 Bq/L, respectively. The activity concentrations of 228 Ra exceeded the WHO-recommended maximum permissible limit of 0.1 Bq/L for drinking water. The annual effective dose (AED) and excess lifetime cancer risk (LCR) caused by the ingestion of each BMW sample were estimated for adults to assess radiological risks using two different scenarios based on BMW consumption rates (150 and 13 L/y). All estimated total AEDs, except for two samples, were below the guidance dose level of 100 μSv/y recommended by the World Health Organization (WHO) and Turkish regulations for drinking water. For all BMW brands, 228 Ra was found as the main contributor to the AEDs. The LCR values were lower than the acceptable value of 10 –3 for radiological risks.

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Radionuclide determination and radioactivity evaluation of surface soil samples collected along the Erçek Lake basin in eastern Anatolia, Turkey

Cited by 19 publications

References 18 publications

Determination of radioactivity levels of soil samples and the excess of lifetime cancer risk in Rize province, Turkey

Determination of radioactivity levels of soil samples and the excess of lifetime cancer risk in Rize province, Turkey

Levels and effects of natural radionuclides in sediment banks of Rhumel River (Northeast Algeria)

Natural Radionuclides in Bottled Mineral Waters Consumed in Turkey and Their Contribution to Radiation Dose

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