A suggestion to radiological hazards characterization of 226Ra, 232Th, 40K and 137Cs: spatial distribution modelling

被引:33
作者
Akozcan, Serpil [1 ]
Kulahci, Fatih [2 ]
Mercan, Yeliz [3 ]
机构
[1] Kirklareli Univ, Fac Sci & Letters, Dept Phys, Campus Kayali, Kirklareli, Turkey
[2] Firat Univ, Sci Fac, Phys Dept, Nucl Phys Div, TR-23119 Elazig, Turkey
[3] Kirklareli Univ, Sch Hlth, Campus Kayali, Kirklareli, Turkey
关键词
Radiological hazard; Spatial distribution; Risk assessment; Kriging; Radionuclides; NATURAL RADIONUCLIDE CONCENTRATIONS; RADIOACTIVITY LEVELS; SEDIMENT SAMPLES; POWER-PLANT; BUILDING-MATERIALS; AEGEAN SEA; TURKEY; SOIL; AREAS; WASTES;
D O I
10.1016/j.jhazmat.2018.04.042
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Spatial distribution modelling has been proposed to characterize the radiological hazards associated with concentration of natural Ra-226, Th-232, K-40 and artificial Cs-137 radionuclides in the nature. These elements have been determined for the sediment samples of the Bafa Lake with the aim of radiation hazard evaluation via a high purity germanium detector gamma spectrometry. Their activity concentrations in sediments are in the ranges of 29.87 +/- 2.2-72.56 +/- 11 Bq kg(-1) dry weight (dw), 31.57 +/- 3.5-66.48 +/- 8.3 Bq kg(-1) (dw), 332.01 +/- 12-1092.37 +/- 21 and 0.65 +/- 0.04-3.96 +/- 0.78 Bq kg(-1)(dw), respectively. In order to determine the radiological hazard associated with the radioactivity in the samples, the external terrestrial gamma dose rate in air, annual effective dose rate, the radium equivalent activity and the external hazard index are calculated and compared with the data from literature. Moreover, the spatial modelling distributions are obtained visually for radiological hazards characterization of these elements, which are very dangerous in terms of radiological and environmental pollution in the nature. These visual distributions give meaningful information for future researches on the migration of radionuclides in the environment.
引用
收藏
页码:476 / 489
页数:14
相关论文
共 53 条
[1]   238U, 232Th, 40K and 137Cs activity concentrations along the southern coast of the Caspian Sea, Iran [J].
Abdi, Mohammad Reza ;
Hassanzadeh, Smaeyl ;
Kamali, Mehdi ;
Raji, Hamid Reza .
MARINE POLLUTION BULLETIN, 2009, 58 (05) :658-662
[2]   Annual effective dose of naturally occurring radionuclides in soil and sediment [J].
Akozcan, S. .
TOXICOLOGICAL AND ENVIRONMENTAL CHEMISTRY, 2014, 96 (03) :379-386
[3]   Distribution of natural radionuclide concentrations in sediment samples in Didim and Izmir Bay (Aegean Sea-Turkey) [J].
Akozcan, S. .
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, 2012, 112 :60-63
[4]   Natural and artificial radioactivity levels and hazards of soils in the Kucuk Menderes Basin, Turkey [J].
Akozcan, Serpil .
ENVIRONMENTAL EARTH SCIENCES, 2014, 71 (10) :4611-4614
[5]   Vertical distribution of 226Ra and 210Po in agricultural soils in Buyuk Menderes Basin, Turkey [J].
Akyil, S. ;
Gurboga, G. ;
Aslani, M. A. A. ;
Aytas, S. .
JOURNAL OF HAZARDOUS MATERIALS, 2008, 157 (2-3) :328-334
[6]   Natural radionuclides and 137Cs activity concentration in the bottom sediment cores from Kuwait Bay [J].
Al-Zamel, AZ ;
Bou-Rabee, F ;
Olszewski, M ;
Bem, H .
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2005, 266 (02) :269-276
[7]  
[Anonymous], 2000, RADIOACTIVITY ENV
[8]  
[Anonymous], 2000, REPORT UN SCI COMMIT
[9]  
[Anonymous], 2004, Elements and their Compounds in the Environment
[10]   NATURAL RADIOACTIVITY OF AUSTRALIAN BUILDING-MATERIALS, INDUSTRIAL-WASTES AND BY-PRODUCTS [J].
BERETKA, J ;
MATHEW, PJ .
HEALTH PHYSICS, 1985, 48 (01) :87-95