The Investigation of Radionuclide Concentrations in Soil and Lifetime Cancer Risk Due to Gamma Radioactivity in Zonguldak, Turkey

• Authors: A. Koray , G. Akkaya , A. Kahraman , G. Kaynak , R. Baldık
• Languages of publication: EN

Abstracts

EN

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.

Keywords

EN

07.88.+y; 89.60.-k

Discipline

• 89.60.-k: Environmental studies(for ecology, see 87.23.-n; for environmental impacts of renewable energy, see 88.05.Np)
• 07.88.+y: Instruments for environmental pollution measurements

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2017
• Volume: 132
• Issue: 3
• Pages: 1122-1125

Dates

published

2017-09

Contributors

author

A. Koray

• Ereğli Education Faculty, Bülent Ecevit University, Kdz. Ereğli, Zonguldak, Turkey

author

G. Akkaya

• Physics Department, Faculty of Arts and Sciences, Uludag University, Bursa, Turkey

author

A. Kahraman

• Physics Department, Faculty of Arts and Sciences, Uludag University, Bursa, Turkey

author

G. Kaynak

• Physics Department, Faculty of Arts and Sciences, Uludag University, Bursa, Turkey

author

R. Baldık

• Physics Department, Faculty of Arts and Sciences, Bülent Ecevit University, Zonguldak, Turkey

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Identifiers

DOI

10.12693/APhysPolA.132.1122