en Radiation Biology Radiation Biology تحقيق بديع Original Research <div style="text-align: justify;"><span style="font-size:10pt"><span style="text-justify:newspaper"><span style="text-kashida-space:50%"><span style="line-height:119%"><span style="font-family:Calibri"><span style="color:black"><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="color:#1f497d"><span style="font-style:italic"><span style="font-weight:bold"><span style="language:en-US">Background</span></span></span></span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="color:#1f497d"><span style="font-weight:bold"><span style="language:en-US">:</span></span></span></span></span> <span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="language:en-US">Natural radiation is radiation that comes from two main environmental sources, the cosmic radiation from space that passes through the atmosphere, and terrestrial radiation is created when radionuclides decay in rock and soil. The most important radionuclides forming the natural radioactivity in terrestrial sources are </span></span></span><span lang="en-US" style="font-size:5.9939pt"><span style="font-family:Calibri"><span style="language:en-US">⁴⁰</span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="language:en-US">K, </span></span></span><span lang="en-US" style="font-size:5.9939pt"><span style="font-family:Calibri"><span style="language:en-US">²³⁸</span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="language:en-US">U and </span></span></span><span lang="en-US" style="font-size:5.9939pt"><span style="font-family:Calibri"><span style="language:en-US">²³²</span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="language:en-US">Th. </span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="color:#1f497d"><span style="font-style:italic"><span style="font-weight:bold"><span style="language:en-US">Material and Methods: </span></span></span></span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="language:en-US">In this study, </span></span></span><span lang="en-US" style="font-size:5.9939pt"><span style="font-family:Calibri"><span style="language:en-US">¹³⁷</span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="language:en-US">Cs, </span></span></span><span lang="en-US" style="font-size:5.9939pt"><span style="font-family:Calibri"><span style="language:en-US">⁴⁰</span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="language:en-US">K, </span></span></span><span lang="en-US" style="font-size:5.9939pt"><span style="font-family:Calibri"><span style="language:en-US">²³⁸</span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="language:en-US">U and </span></span></span><span lang="en-US" style="font-size:5.9939pt"><span style="font-family:Calibri"><span style="language:en-US">²³²</span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="language:en-US">Th activity levels were measured in samples taken from different parts of the island and beaches to determine the environmental radioactivity of Bozcada-&Ccedil;anakkale using gamma spectrometry with a NaI(Tl) detector and radiation hazard indexes were calculated for soils. </span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="color:#1f497d"><span style="font-style:italic"><span style="font-weight:bold"><span style="language:en-US">Results</span></span></span></span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="color:#1f497d"><span style="font-style:italic"><span style="language:en-US">: </span></span></span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="language:en-US">Average activity concentrations of</span></span></span> <span lang="en-US" style="font-size:5.9939pt"><span style="font-family:Calibri"><span style="language:en-US">⁴⁰</span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="language:en-US">K, </span></span></span><span lang="en-US" style="font-size:5.9939pt"><span style="font-family:Calibri"><span style="language:en-US">²³⁸</span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="language:en-US">U, </span></span></span><span lang="en-US" style="font-size:5.9939pt"><span style="font-family:Calibri"><span style="language:en-US">²³²</span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="language:en-US">Th and </span></span></span><span lang="en-US" style="font-size:5.9939pt"><span style="font-family:Calibri"><span style="language:en-US">¹³⁷</span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="language:en-US">Cs in soils were obtained as 427, 24, 31, and 29 Bqkg</span></span></span><span lang="en-US" style="font-size:5.9939pt"><span style="font-family:Calibri"><span style="language:en-US">^-1</span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="language:en-US">, respectively.</span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="language:en-US"> The </span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="language:en-US">average activity values for </span></span></span><span lang="en-US" style="font-size:5.9939pt"><span style="font-family:Calibri"><span style="language:en-US">⁴⁰</span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="language:en-US">K, </span></span></span><span lang="en-US" style="font-size:5.9939pt"><span style="font-family:Calibri"><span style="language:en-US">²³⁸</span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="language:en-US">U, </span></span></span><span lang="en-US" style="font-size:5.9939pt"><span style="font-family:Calibri"><span style="language:en-US">²³²</span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="language:en-US">Th and </span></span></span><span lang="en-US" style="font-size:5.9939pt"><span style="font-family:Calibri"><span style="language:en-US">¹³⁷</span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="language:en-US">Cs </span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="language:en-US">in beach sands</span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="language:en-US"> were determined to be 329, 23, 11 and 14 Bqkg</span></span></span><span lang="en-US" style="font-size:5.9939pt"><span style="font-family:Calibri"><span style="language:en-US">^-1</span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="language:en-US">, respectively. Radiological risk factors for Bozcaada soils were calculated. </span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="color:#1f497d"><span style="font-style:italic"><span style="font-weight:bold"><span style="language:en-US">Conclusion:</span></span></span></span></span></span> <span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="language:en-US">Our results were compared with the literature data and average world limit values. As a result of this study, we can state that the activity concentrations of Bozcaada Island beach sands are lower than the activity concentrations of soils. Since Bozcada is an island that attracts tourists, the low radionuclide activity in the beach sands shows that this place does not pose a significant radiological threat to peoples.</span></span></span></span></span></span></span></span></span></div> Natural radioactivity, beach sand, soil, radiological hazard, Çanakkale. 875 882 http://ijrr.com/browse.php?a_code=A-10-1-1252&slc_lang=en&sid=1 S. Çam-Kaynar camsermin@gmail.com 7900319475328460028486 7900319475328460028486 Yes Manisa Celal Bayar University, Faculty of Engineering and Natural Sciences, Department of Physics, 45140, Manisa, Turkey