Determination of Natural Radioactivity from²³²Th with Gamma-Ray Spectrometer in Dereköy-Yazır (Southwestern Anatolia)

Abstract

This study presents new data on the baseline concentrations of Thorium over the Dereköy-Yazır (Ağlasun-Burdur) volcanic area. Portable gamma-ray spectrometer was used for natural thorium mapping. In situ measurements were made in the field, in the area of 7.5 km 2 at 165 points. Variations in the Th concentration in the surficial environment of the Dereköy-Yazır region appear to be related to bedrock lithology. The measured thorium concentration varies between 0.68-36 ppm, in the studied area. The highest concentration values were obtained from volcanic rocks. The outcropping volcanic rocks in the region are Pliocene alkaline basalts.

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

“…The results have ranged from 0.022 to 0.043 mSv/y. This is lower than the ICRP recommended value (the annual effective dose equivalent limit of 1 mSv/y for the individual members of the public and 20 mSv/y for the radiation workers [19,20]). …”

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

“…Calculated H ex values are given in Table I. The value of H ex must be less than unity [17][18][19]. All calculated values are lower than 1.…”

The Effect of Meteorological Parameters on Radon Concentration in Soil Gas

“…Radiometric surveys for mineral exploration or lithological mapping are routinely made from the air and on the ground [1]. The radioactivity of the soil is important since it disperses into water and air and also through the plants and other leaving beings [2].…”