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- Title
The Investigation of Radionuclide Concentrations in Soil and Lifetime Cancer Risk Due to Gamma Radioactivity in Zonguldak, Turkey.
- Authors
KORAY, A.; AKKAYA, G.; KAHRAMAN, A.; KAYNAK, G.; BALDIK, R.
- Abstract
The distributions of 226Ra, 232Th, 40K and 137Cs activity concentrations were determined using a high-purity germanium detector in uncultivated surface soil samples collected from Zonguldak. The range of 226Ra, 232Th, 40K and 137Cs activity concentrations varied from 10:5±2:0 to 98:0±4:3 Bq kg-1 (mean value 28:8±4 Bq kg-1), from 12:9 ± 3:4 to 53:2 ± 5:1 Bq kg-1 (mean value 29:6 ± 3 Bq kg-1), from 190 ± 22 to 808 ± 43 Bq kg-1 (mean value 395 ± 31 Bq kg-1) and from < 0:5 to 47:1 ± 3:8 Bq kg-1 (mean value 12:5 ± 2 Bq kg-1), respectively. In addition, the mean outdoor absorbed dose rates in air (terrestrial, terrestrial+cosmic), annual effective dose equivalent, radium equivalent activity and external hazard index were found to be 48 nGy h-1 (terrestrial), 56 nGy h-1 (terrestrial+cosmic), 58 μSv y-1, 101 Bq kg-1 and 0.27, respectively. The evaluated excess lifetime cancer risks (ELCRs) varied from 0:13 × 10-3 to 0:36 × 10-3 with a mean value of 0:20 × 10-3.
- Subjects
ZONGULDAK (Turkey); CANCER risk factors; RADIOISOTOPES; GAMMA rays; GERMANIUM detectors; NUCLEAR medicine; SOIL sampling
- Publication
Acta Physica Polonica: A, 2017, Vol 132, Issue 3, p1122
- ISSN
0587-4246
- Publication type
Article
- DOI
10.12693/APhysPolA.132.1122