Determination of Natural Radioactivity and Associated Radiological Hazard in Excavation Field in Turkey (Oluz Höyük)

Abstract

The level of natural radioactivity may be varied with the increase in dependence of the depth into the earth. In present study, soil samples from different depths were collected in Oluz Höyük excavation area. The radionuclide concentrations in soil samples were determined by gamma-ray spectrometer which contains 3" × 3" NaI(Tl) detector connected to multichannel analyser. To assess the radiological hazard of the natural radionuclides content in the soil samples of these area, the radium equivalent activities (the minimum value was 181.99 Bq/kg and the maximum value was 497.97 Bq/kg), the absorbed dose rate (the minimum value was 86.83 nGy/h and the maximum value was 237.22 nGy/h), annual effective dose rate (the minimum value was 0.11 mSv/y and the maximum value was 0.29 mSv/y) and external hazard index (the minimum value was 0.49 and the maximum value was 1.35) were calculated using measured activities.

The Investigation of Radionuclide Concentrations in Soil and Lifetime Cancer Risk Due to Gamma Radioactivity in Zonguldak, Turkey

“…The containers were closed and stored for a month in order to achieve the radioactive equilibrium between 226 Ra and its daughter element ( 222 Rn) [9]. 40 The outdoor gamma radiation levels were measured by a portable dose rate meter (Fluke Victoreen survey meter, connected with a 489-55 model 1.5 × 1.5 NaI(Tl) scintillation detector, optically coupled to PMT, as described by Akkaya et al [10].…”

Assessments of Natural Radioactivity Concentration and Radiological Hazard Indices in Surface Soils from the Gözlek Thermal SPA (Amasya-Turkey)

“…For this purpose, several studies have been carried out to measure the natural activity concentrations of 40 K, 226 Ra and 232 Th in different materials [3][4][5][6][7][8][9][10][11]. Natural radioactivity levels depend on the geological and geographical characteristics of the region.…”

The Presence of Metals and Antibiotics Resistant Bacteria in Arable Manure Soils

“…Also, antibiotics and heavy metals pollution in arable soils and ecosystem have become risk to natural life and public health [4][5][6]. Recently, higher levels of radioactive, antibiotic, and heavy metal residues were detected in organic vegetable fields and intake of these residues by food products affects food quality and safety [7][8][9][10].…”