Environmental radioactivity assessment for Bayburt, Turkey

This study assesses the results of environmental radioactivity measurements for Bayburt Province in the Eastern Black Sea area of Turkey. Using gamma-ray spectrometry, activity concentrations of the natural radionuclides (226)Ra, (232)Th and (40)K and a fission product (137)Cs were investigated in soil samples. The activity concentrations of (226)Ra, (232)Th and (40)K in various building materials such as sand, cement and marble and in drinking waters were determined. The activity concentrations vary from 16 to 54 Bq kg(-1) for (226)Ra, from 10 to 21 Bq kg(-1) for (232)Th and from 113 to 542 Bq kg(-1) for (40)K in building materials. The mean specific activity concentrations of (226)Ra, (232)Th and (40)K in drinking waters were 93, 30 and 504 mBq l(-1), respectively. The concentrations of gross alpha and beta radioactivity in drinking water samples collected from four different sampling stations have been determined. The results show that the gross alpha and beta activities are lower than the screening levels given by the World Health Organization (WHO), which are a maximum contaminant level of 0.5 Bq l(-1) and 1.0 Bq l(-1) gross alpha and beta radioactivity, respectively, in drinking water. Indoor radon measurements were made in 44 dwellings in Bayburt by using Cr-39 detectors. Radon concentrations in dwellings in Bayburt varied from 17 to 125 Bq m(-3) and the average value was 56 Bq m(-3). The results obtained in this study indicate that the region has a background radiation level that is within the typical natural range and shows no significant departures from other parts of the country.

[1]  R. Harrison,et al.  Cleaning methods for polythene containers prior to the determination of trace metals in fresh water samples , 1981 .

[2]  U. Çevik,et al.  Determination of gross α and β activities in waters from Batman, Turkey , 2009 .

[3]  A. Bozkurt,et al.  Assessment of background radioactivity level for Gaziantep region of southeastern Turkey. , 2007, Radiation protection dosimetry.

[4]  A. Bozkurt,et al.  Indoor Radon Measurement In The City Of Edirne, Turkey , 2007 .

[5]  A. Bozkurt,et al.  Assessment of environmental radioactivity for Sanliurfa region of southeastern Turkey , 2007 .

[6]  正弘 中舘.  OECD (経済開発協力機構) : Organization for Economic Co-operation and Development , 1991 .

[7]  U. Çevik,et al.  Assessment of environmental radioactivity for Batman, Turkey , 2010, Environmental monitoring and assessment.

[8]  U. Çevik,et al.  Indoor radon survey in dwellings of the Kars province, Turkey. , 2007, Radiation Protection Dosimetry.

[9]  M. Alam,et al.  Radiological Assessment of Drinking Water of the Chittagong Region of Bangladesh , 1999 .

[10]  岩崎 民子.  SOURCES AND EFFECTS OF IONIZING RADIATION : United Nations Scientific Committee on the Effects of Atomic Radiation UNSCEAR 2000 Report to the General Assembly, with Scientific Annexes , 2002 .

[11]  Indoor Radon Concentrations in Ankara Dwellings , 1999 .

[12]  J Beretka,et al.  Natural radioactivity of Australian building materials, industrial wastes and by-products. , 1985, Health physics.

[13]  B. Akar,et al.  A survey of 222Rn concentrations in dwellings of Turkey , 2004 .

[14]  A. Çelik,et al.  Determination of indoor radon and soil radioactivity levels in Giresun, Turkey. , 2008, Journal of environmental radioactivity.

[15]  F. S. Ereeş,et al.  Assessment of dose rates around Manisa (Turkey) , 2006 .

[16]  U. Çevik,et al.  Radiological Characterization around the Afsin-Elbistan Coal-Fired Power Plant in Turkey , 2008 .

[17]  D. Brenner.  Protection against Radon-222 at Home and at Work. ICRP Publication 65 , 1994 .

[18]  H. Petterson.  Radiological assessment. , 1983, Scandinavian journal of rheumatology. Supplement.

[19]  N. Çelebi,et al.  Indoor 222Rn concentrations in Istanbul houses. , 1993, Health physics.

[20]  U. Çevik,et al.  Natural radioactivity in tap waters of Eastern Black Sea region of Turkey. , 2006, Radiation protection dosimetry.

[21]  U. Çevik,et al.  Gross α and β activities in tap waters in Eastern Black Sea region of Turkey , 2006 .

[22]  A. Bayülken,et al.  Natural radioactivity in various surface waters in İstanbul, Turkey , 2000 .

[23]  R. B.,et al.  The United Nations , 1947, Nature.

[24]  A. Bozkurt,et al.  Environmental radioactivity measurements in Kastamonu region of northern Turkey. , 2007, Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine.

[25]  E. Kam,et al.  Environmental radioactivity concentrations of Tekirdağ , 2005 .

[26]  E. Kam,et al.  A radon survey in some regions of Turkey , 2005 .