Türkiye'nin Doğu Karadeniz Bölgesinde Yetişen Karayemiş Bitkisinin (Prunus laurocerasus L.) Meyve ve Toprak Örneklerinin Radyolojik Değerlendirilmesi.

This study presents the results of 226Ra, 232Th, 137Cs and 40K radionuclide concentrations in the fruit part of cherry laurel (Prunus laurocerasus L.) and soil samples in root of this species were collected from fourteen different stations in the Eastern Black Sea Region. The mean activity concentrations of 226Ra, 232Th, 137Cs and 40K in the fruit part of cherry laurel were 1.75, 1.03, 2.07 and 215.38 Bq kg-1, respectively. The mean activity concentrations of 226Ra, 232Th and 40K in soil samples were determined to be lower than the world average value. The highest 137Cs radionuclide concentration in fruit of cherry laurel and soil samples was monitored in the Rize center location. In addition, radiological impact parameters such as daily intake of 226Ra, 232Th, 137Cs and 40K, annual committed effective dose and carcinogenic risk due to the consumption of cherry laurel were calculated and compared with the international data. The radium equivalent activity (Raeq), the absorbed dose rate (D), the external hazard index (Hex) and the annual effective dose equivalent (AEDE) for soil samples were also evaluated. Moreover, transfer factors of 226Ra, 232Th, 137Cs and 40K from soil to fruit part of cherry laurel were determined. The results indicate that the lifetime cancer risk and the radiological impact parameters values in the samples from the area studied in this present work is not significant. [ABSTRACT FROM AUTHOR]