Natural and artificial radioactivity levels and hazards of soils in the Kücük Menderes Basin, Turkey

Aközcan, Serpil

doi:10.1007/s12665-013-2861-6

Cited by 26 publications

(4 citation statements)

References 22 publications

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“…The specific activities for 226 Ra were evaluated from the three γ-ray lines obtained from photopeaks 214 Bi (609.3 keV (44.8%), 1120 keV (15.1%) and 1764.5 keV (15.8%)), while specific activities of 232 Th were calculated from the average value of the two γ-ray lines obtained from the pho-Adsorbed dose rate and contribution of 226 Ra, 232 Th and 40 K to absorbed dose rate Absorbed dose rate in air (D a ) usually expresses the health effects of γ-ray radiation from the natural radioactive sources in the environment. D a values at the high 1 m above the ground were calculated fromthe measured specific activities of 226 Ra, 232 Th, and 40 K by using the following23,24) equation(3),…”

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confidence: 99%

Natural Radioactivity Measurements in Soil, External Dose and Radiological Hazard Assessment in the Uranium and Thorium Bearing Region of Lolodorf, Cameroon

et al. 2018

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The level of natural radioactivity has been evaluated for soil samples collected from the uranium and thorium bearing region of Lolodorf in the southwestern Cameroon. Specific activities of 226 Ra, 232 Th and 40 K in these soil samples were determined using γ-ray spectrometry with sodium iodide (NaI(Tl)) detector. The specific activities for the whole study areas where consist of five inhabited localities were compared with the world average and permissible recommended limits. Specific activities of 226 Ra, 232 Th and 40 K ranged from 5-120, 2-170 and 50-253 Bq kg −1 , with average values of 22±2, 37±6 and 98±7 Bq kg −1 , respectively. The average values of absorbed dose rate in air (D a), external effective dose (E ext), radium equivalent activity (Ra eq), external hazard index (H ext) and representative level index (I γ) were 36.7±5.0 nGy h −1 , 0.29±0.04 mSv y −1 , 83±14 Bq kg −1 , 0.22±0.03 and 0.58±0.10 respectively, which, were lower than their recommended values. Although this study shows that radioactivity level is normal in the study areas, except some areas where the uranium and potassium anomalies had been found by previous investigations, the possibility of developing cancer cases among individuals must not be neglected. The soil from the sampling areas in this study can be used safely as building materials apart from some points within Ngombas and Kribi.

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Natural Radioactivity Measurements in Soil, External Dose and Radiological Hazard Assessment in the Uranium and Thorium Bearing Region of Lolodorf, Cameroon

et al. 2018

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“…In this study, the activity concentration in most soil samples was found to be higher than in the study conducted in 2020. In Küçük Menderes Basin-Turkey, the activity concentrations were found to be in the range of 12.63 -72.51 ( 26 Ra), 11.45 -58.12 ( 232 Th), 234.8 -1058.52 ( 40 K), 2.31 -7.75 ( 137 Cs) Bq kg −1 [29]. In Bolu-Turkey, the activity concentrations of 226 Ra, 232 Th, 40 K, and 137 Cs in soil samples were found to be 3.8-49.9, 4.1-37.9, 64.6-518.9, and 0.6-43.6 Bq kg −1 , respectively [30].…”

Section: Resultsmentioning

confidence: 99%

Natural and Artificial Radioactivity Concentrations and Health Risks due to Radionuclides in the Soil of Nevşehir (Cappadocia)

Özden,

Pehli̇vanoğlu

2023

International Journal on Applied Physics and Engineering

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Natural and artificial radionuclides in the surface soil samples collected from the Nevşehir (Cappadocia) region were analyzed using gamma spectrometry employing an HPGe detector. Activity concentrations of 226Ra, 232Th, and 40K range from 58.31 to 77.40 Bq kg−1, 60.56 to 90.97 Bq kg-1, and 796.42 to 1142.8 Bq kg-1, respectively. The values indicate that the activity concentrations of the natural radionuclides in the soil samples were higher than the world average. Since Turkey is a country greatly affected by the Chernobyl accident, 137Cs activity concentration was measured to determine whether its effect continues. The activity concentration of 137Cs ranges from Minimum Detectable Activity (MDA) to 6.88 Bq kg−1. In addition, the radium equivalent activity, the absorbed dose rate, the annual effective dose equivalent, and the excess lifetime cancer risk parameters were calculated to determine the radiological effect of natural and artificial radionuclides on the population in the study area. All values except the radium equivalent activity were found to be above the world average.

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“…Radyasyon doz hesaplarında bölgeye ait doğal kaynaklar ve bu kaynakları oluşturan radyonüklidlerin çevredeki konsantrasyonlarının ve radyasyonun özellikle insanda olmak üzere, biyolojik sistemler üzerindeki etkisini belirlemek amacıyla dünyada ve Türkiye'de birçok çalışma yapılmaktadır [6][7][8][9]. Bu çalışmada, Edirne ve Kırklareli illeri arasındaki otoyol boyunca toplanan toprak örneklerinde 226 Ra, 232 Th ve 40 K doğal radyonüklid konsantrasyonları gama spektrometresi ile ölçülmüştür.…”

Section: Introductionunclassified

TOPRAK ÖRNEKLERİNDE DOĞAL RADYOAKTİVİTE (226Ra, 232Th VE 40K) VE RADYASYON TEHLİKELERİNİN DEĞERLENDİRİLMESİ

Aközcan

2020

Kırklareli Üniversitesi Mühendislik Ve Fen Bilimleri Dergisi

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Natural and artificial radioactivity levels and hazards of soils in the Kücük Menderes Basin, Turkey

Cited by 26 publications

References 22 publications

Natural Radioactivity Measurements in Soil, External Dose and Radiological Hazard Assessment in the Uranium and Thorium Bearing Region of Lolodorf, Cameroon

Natural Radioactivity Measurements in Soil, External Dose and Radiological Hazard Assessment in the Uranium and Thorium Bearing Region of Lolodorf, Cameroon

Natural and Artificial Radioactivity Concentrations and Health Risks due to Radionuclides in the Soil of Nevşehir (Cappadocia)

TOPRAK ÖRNEKLERİNDE DOĞAL RADYOAKTİVİTE (226Ra, 232Th VE 40K) VE RADYASYON TEHLİKELERİNİN DEĞERLENDİRİLMESİ

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