Gölcük/Isparta ve Yakın Çevresinde Yer Alan Kayaçların Doğal Radyoaktivite Özelliklerinin İncelenmesi

Abstract

This study was carried out in the Gölcük (Isparta) volcanic region, which is among the youngest eruptive volcanoes of Turkey. The aim of this study is to measure the radioactivity concentration values in the rocks developed due to explosive volcanism in the region, to interpret these values for the region, and to evaluate the effects of the concentration values on human health and environmental effects. Uranium (U), Thorium (Th), Potassium (K), and absorbed dose rate measurements were taken at a total of 452 points on the volcanic and pyroclastic rocks in the region using Gamma-ray spectrometry and in situ measurement technique. Distribution maps of the measurements were created and high radioactivity values were observed throughout the region. While the obtained U values varied between 10 and 350 Bq/kg, it was observed that the Th values reached 420 Bq/kg. High concentration values were observed in similar regions in both concentration distribution maps. The potassium value measured for the region reaches 2200 Bq/kg. It is thought that the high U and K values obtained as a result of the measurements may be due to the potassic-ultrapotassic characters of the volcanic-origin rocks in the region. The dose rate absorbed in the air reaches 480 nGy/h, which is approximately eight times the world average (60 nGy/h) determined by UNSCEAR. Therefore, there is a possibility that the living things living in this environment may be negatively affected by this situation.