Measurements of Radon Content in the Thermal Waters in Sakarya

Abstract

The paper presents the results of radon concentration measurements in thermal waters of Kuzuluk and Tarakli (Sakarya, Turkey) and their contribution to annual effective dose exposure. The radon measurements were performed using RAD 7, a solid state alpha detector, with RAD H2O accessory. The results show that the radon activities are within the range of 0.19-5.89 Bql(-1) with an average value of 0.98 Bql(-1). The associated annual effective doses have been estimated to range from 0.14 to 0.40 mu Svy(-1) for ingestion and from 1.81 to 5.14 mu Svy(-1) for inhalation of radon released from the water. These values are significantly lower than the WHO recommended limit of 100 mu Svy(-1)