The investigation of radionuclide concentrations in soil and lifetime cancer risk due to gamma radioactivity in Zonguldak, Turkey

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Date

2017-09

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Polish Acad Sciences Inst Physics

Abstract

The distributions of Ra-226, Th-232, K-40 and Cs-137 activity concentrations were determined using a high-purity germanium detector in uncultivated surface soil samples collected from Zonguldak. The range of Ra-226, Th-232, K-40 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 +/- 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 mu Sv y(-1), 101 Bq kg(-1) and 0.27, respectively. The evaluated excess lifetime cancer risks (ELCRs) varied from 0.13 x 10(-3) to 0.36 x 10(-3) with a mean value of 0.20 x 10(-3).

Description

Bu çalışma, 19-24 Ekim 2016 tarihleri arasında Antalya[Türkiye]’da düzenlenen 3. International Conference on Computational and Experimental Science and Engineering (ICCESEN)'da bildiri olarak sunulmuştur.

Keywords

Physics, Fired power-plant, Natural radioactivity, Coal, Catalagzi, Samples, Amasya, Bursa, Cosmology, Diseases, Radioactivity, Absorbed dose rate, Activity concentration, Annual effective dose, External hazard index, Gamma radioactivity, High purity germanium detectors, Radionuclide concentration, Radium equivalent activity, Soil pollution

Citation

Koray, A. vd. (2017). ''The investigation of radionuclide concentrations in soil and lifetime cancer risk due to gamma radioactivity in Zonguldak, Turkey''. Acta Physica Polonica A, 132(3), Special Issue, Part 2, 1122-1125.