Gross alpha-particle activities in the ground waters in Western Anatolia

WOS: A1996UZ29700015PubMed ID: 8759158The purpose of this study is to present data on gross alpha-particle activity, pH and conductivity in the ground waters in Western Anatolia. The gross alpha-particle activities in 27 ground water samples were determined by radiochemical carrier-precipitation methods. The gross alpha-particle activities of water samples were measured by using a ZnS (Ag) detector system. Measurable alpha-particle activity is present in all ground water samples, with one ground water sample having a gross alpha-particle activity > 0.55 Bq/L. Copyright (C) 1996 Elsevier Science Lt

Determination of radioactivity levels in Akhisar, Gordes, Golmarmara and Sindirgi regions, Western Turkey

In this study, radioactivity measurements in the environment of Akhisar, Golmarmara, Gordes and Sindirgi regions in Western Turkey were investigated in order to evaluate the implications of any excess radioactivity in the environment of geological formation. The radioactivity concentrations of K-40, U-238 and Th-232 radionuclides in the soil samples were measured by a NaI(Tl) gamma spectrometer system, and the radium activity concentrations in the water samples were also analyzed by an ZnS(Ag) alpha counter by the collector chamber method. The radioactivity of K-40, U-238 and Th-232 in soils ranged 2.80-2,347.77, 9.90-256.19 and 9.66-106.53 Bq kg(-1), respectively. The activity of Ra-226 in the water samples ranged from 0.03 Bq L-1 (0.89pCi/L) to 0.80 Bq L-1 (21.58pCi/L). In addition, the external terrestrial gamma dose rate in air (nGy h(-1)), annual effective dose rate (mSv year(-1)) and radium equivalent activity (Bq kg(-1)) were calculated and compared with international standard values

Determination of radon exhalation rate and natural radioactivity levels of building materials used in Istanbul-Turkey

Radon concentrations of 63 building materials (block-form and powder-form) used in Istanbul province were measured by using solid state nuclear track detectors (CR-39). Radon exhalation rates for each other were calculated and compared to the literature. The activity concentrations of K-40, U-238 and Th-232 for 18 powder-form building materials (cement and sand samples) were analyzed by a gamma-ray spectrometer coupled with a NaI(Tl) detector. The activity concentrations of K-40, U-238 and Th-232 ranged from 2.81 to 638.9 Bqkg(-1), 44.68 to 114.26 Bqkg(-1) and 2.02 to 34.16 Bqkg(-1), respectively. Activity of U-238 in sand samples was found as higher than the world average. The activities of K-40, U-238 and Th-232 are compared with available data from other investigations and the world average value. Radiation hazard indices (radium equivalent activity, external hazard index and indoor hazard index) were calculated by using the activity results. The results are compared to the literature

Measurements of radon content in soil gas and in the thermal waters in Western Turkey

Radon is a radioactive gas which makes the primary contribution to the natural radiation to which people are exposed. For that reason, great importance is attributed to the determination of radon concentration levels in water, indoor air, soil gas and outdoors. In the present work radon content measurements in soil gas, as well as gamma dose rate surveys of the surface area were realized at 112 stations in Western Turkey. The scintillation detector of EDA Instrument Inc. was used for the radon measurements in soil gas. The radon concentration in 40 thermal water samples in same region was also studied. Radon concentration was measured by the collector chamber method. Radon distribution was found to be related with the tectonic lines and high heat flow zones in the region. (c) 2005 Elsevier Ltd. All rights reserved

Measurements of radon content in soil gas and in the thermal waters in Western Turkey

WOS: 000233857800015Radon is a radioactive gas which makes the primary contribution to the natural radiation to which people are exposed. For that reason, great importance is attributed to the determination of radon concentration levels in water, indoor air, soil gas and outdoors. In the present work radon content measurements in soil gas, as well as gamma dose rate surveys of the surface area were realized at 112 stations in Western Turkey. The scintillation detector of EDA Instrument Inc. was used for the radon measurements in soil gas. The radon concentration in 40 thermal water samples in same region was also studied. Radon concentration was measured by the collector chamber method. Radon distribution was found to be related with the tectonic lines and high heat flow zones in the region. (c) 2005 Elsevier Ltd. All rights reserved