Radionuclides and heavy metals concentrations in Turkish market tea |
| |
| Authors: | Filiz Korkmaz Görür Recep Keser Nilay Akçay Serdar Dizman Nazmi Turan Okumuşoğlu |
| |
| Affiliation: | 1. Rize University, Faculty of Sciences and Arts, Department of Physics, Rize 53100, Turkey;2. Ondokuz May?s University, Faculty of Sciences and Arts, Department of Physics, Samsun, Turkey;1. Department of Physics, Ibrahim Badamasi Babangida University, Lapai, Niger State, Nigeria;2. Centre for Energy Research and Training, Ahmadu Bello University, Zaria, Nigeria;1. Department of Physics, College of Education, Salahaddin University – Erbil, Erbil, Iraq;2. School of Medicine, Koya University, Danielle Mitterrand Boulevard, Koya KOY45, Erbil, Iraq;1. Department of Physics, University of Malaya, Kuala Lumpur 50603, Malaysia;2. Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom;1. University of Kragujevac, Faculty of Science, R. Domanovic 12, 34000 Kragujevac, Serbia;2. University EDUCONS, Faculty for Environmental Protection, Vojvode Putnika bb, 21208 Sremska Kamenica, Serbia;3. Abiotechlab, Vojvode Putnika 87, 21208 Sremska Kamenica, Serbia |
| |
| Abstract: | Tea is one of the most popular beverages in the world. The Eastern Black Sea Region of Turkey is one of the main tea producers in Turkey and the fifth in the world. Thus, the chemical components in tea have received great interest because they are related to health. Since this region was contaminated by the Chernobyl accident in 1986, a comprehensive study was planned and carried out to determine the radioactivity level in the tea growing region. The activity concentrations of 232Th, 238U, 40K and 137Cs were measured in 29 black tea and one green tea samples from local Turkish markets using gamma spectrometry with an HpGe detector. The average activity concentration of 232Th, 226Ra, 40K and 137Cs were found 3.2 ± 0.6 Bq/kg, 6.4 ± 0.7 Bq/kg, 445.6 ± 17.8 Bq/kg and 42.0 ± 1.4 Bq/kg in tea samples, respectively.In addition, the concentration of five heavy metals including Fe, Mn, Zn, Cu and Pb were determined by inductively coupled plasma spectroscopy (ICP/OES) on tea samples. Among the investigated metals, Mn was the highest levels. The levels of manganese were in the range of 1850.75–292.65 μg/g (mean: 1286.35 ± 0.58 μg/g). Levels of Pb in the tea samples analyzed were below the detection limits. The concentrations of all elements for daily intake are below safety levels for human consumptions. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
