Radiological hazard assessment of natural radioactivity in Avcilar region, Turkey: a case of Istanbul University-Cerrahpasa Avcilar Campus.

Radionuclides 226Ra, 232Th, and 40K can be found in various concentrations in the surface soil. High concentrations of radionuclides in the surface soil may cause radiological risks. This study investigated natural radioactivity levels and artificial radionuclide (137Cs) levels in the Istanbul University-Cerrahpasa, Avcilar region, Istanbul, Turkey. Radioactivity concentrations were analyzed using the gamma-ray spectrometer. The mean activity concentration of 226Ra, 232Th, 40K, and 137Cs is 28.55, 29.57, 385.72, and 3.09 Bq kg-1, respectively. Radiological parameters radium equivalent activity, absorbed dose rate, annual effective dose equivalent, external hazard index, and excess lifetime cancer risk were calculated using activity concentrations. The radiological parameters values were lower than UNSCEAR values, except for the annual gonadal dose equivalent (approximately 10% higher). There is a strong correlation between radiological parameters and radionuclides. Generally, the activities of radionuclides in the region fall within the recommended limits, thus Istanbul-Avcilar region can be considered safe for settlement.

[1]  J. Sannappa,et al.  Natural radioactivity levels and associated radiation hazards in soil samples of Chikkamagaluru district, Karnataka, India , 2022, Journal of Radioanalytical and Nuclear Chemistry.

[2]  A. Ion,et al.  Radiological risk assessment and spatial distribution of naturally occurring radionuclides within riverbed sediments near uranium deposits: Tulgheș-Grințieș, Eastern Carpathians (Romania) , 2020 .

[3]  Aznan Fazli Ismail,et al.  Determination of indoor doses and excess lifetime cancer risks caused by building materials containing natural radionuclides in Malaysia , 2019, Nuclear Engineering and Technology.

[4]  B. Dalmacija,et al.  Fate of bromine-containing disinfection by-products precursors during ozone and ultraviolet-based advanced oxidation processes , 2018, International Journal of Environmental Science and Technology.

[5]  Semih Nemlioglu,et al.  Natural radioactivity and hazard-level assessment of Portland cements in Turkey , 2017, Journal of Radioanalytical and Nuclear Chemistry.

[6]  N. Zaim,et al.  Assessment of radioactivity levels and radiation hazards using gamma spectrometry in soil samples of Edirne, Turkey , 2016, Journal of Radioanalytical and Nuclear Chemistry.

[7]  E. O. Darko,et al.  Determination of 226Ra, 232Th, 40K and 235U in soil samples from bauxite core deposits in western Cameroon , 2016 .

[8]  M. Jaafar,et al.  Distribution of 226Ra, 232Th, and 40K in rice plant components and physico-chemical effects of soil on their transportation to grains , 2015 .

[9]  R. C. Ramola,et al.  Assessment of natural radionuclides in the soil samples from Marwar region of Rajasthan, India. , 2015, Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine.

[10]  F. Carini,et al.  Gamma-spectrometric measurement of radioactivity in agricultural soils of the Lombardia region, northern Italy. , 2015, Journal of environmental radioactivity.

[11]  M. Jaafar,et al.  An overview on measurements of natural radioactivity in Malaysia , 2015 .

[12]  I. Boztosun,et al.  Measurement of radioactivity levels and assessment of radioactivity hazards of soil samples in Karaman, Turkey. , 2014, Radiation protection dosimetry.

[13]  R. C. Ramola,et al.  Distribution of natural radioactivity in soil samples and radiological hazards in building material of Una, Himachal Pradesh , 2014 .

[14]  I. Boztosun,et al.  Determination of gamma radioactivity levels and associated dose rates of soil samples of the Akkuyu/Mersin using high-resolution gamma-ray spectrometry. , 2014, Radiation protection dosimetry.

[15]  S. Aközcan.  Natural and artificial radioactivity levels and hazards of soils in the Kücük Menderes Basin, Turkey , 2014, Environmental Earth Sciences.

[16]  V. Egorov,et al.  Secondary radioactive contamination of the Black Sea after Chernobyl accident: recent levels, pathways and trends. , 2013, Journal of environmental radioactivity.

[17]  M. Ghannadi,et al.  Natural radioactivity in surface soil samples from dwelling areas in Tehran city, Iran. , 2013, Radiation protection dosimetry.

[18]  G. Suresh,et al.  Assessment of spatial distribution and radiological hazardous nature of radionuclides in high background radiation area, Kerala, India. , 2013, Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine.

[19]  U. Çevik,et al.  A study of environmental radioactivity measurements in the Samsun province, Turkey. , 2012, Radiation protection dosimetry.

[20]  G. Avwiri,et al.  γ-Spectroscopy measurement of natural radioactivity and assessment of radiation hazard indices in soil samples from oil fields environment of Delta State, Nigeria. , 2012, Journal of environmental radioactivity.

[21]  K. M. Thabayneh,et al.  Natural Radioactivity Levels and Estimation of Radiation Exposure in Environmental Soil Samples from Tulkarem Province-Palestine , 2012 .

[22]  A. Bozkurt,et al.  Investigation of radioactivity level in soil and drinking water samples collected from the city of Erzincan, Turkey , 2012, Journal of Radioanalytical and Nuclear Chemistry.

[23]  H. Taşkın,et al.  Assessment of natural radioactivity concentrations and gamma dose rate levels in Kayseri, Turkey. , 2012, Radiation protection dosimetry.

[24]  H. Aytekin,et al.  Radioactivity measurements and radiation dose assessments due to natural radiation in Karabük (Turkey) , 2011 .

[25]  M. Durante,et al.  Effects of sparsely and densely ionizing radiation on plants , 2011, Radiation and environmental biophysics.

[26]  A. Bozkurt,et al.  A study of background radioactivity level for Canakkale, Turkey , 2010, Environmental monitoring and assessment.

[27]  M. Belivermiş,et al.  The effects of physicochemical properties on gamma emitting natural radionuclide levels in the soil profile of Istanbul , 2010, Environmental monitoring and assessment.

[28]  Constantin Papastefanou,et al.  Escaping radioactivity from coal-fired power plants (CPPs) due to coal burning and the associated hazards: a review. , 2010, Journal of environmental radioactivity.

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

[30]  H. Taşkın,et al.  Radionuclide concentrations in soil and lifetime cancer risk due to gamma radioactivity in Kirklareli, Turkey. , 2009, Journal of environmental radioactivity.

[31]  L. Sahin,et al.  Natural radioactivity measurements in soil samples of central Kutahya (Turkey). , 2008, Radiation protection dosimetry.

[32]  U. Çevik,et al.  Determination of radioactivity levels and hazards of soil and sediment samples in Firtina Valley (Rize, Turkey). , 2007, Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine.

[33]  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.

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

[35]  A. Cavaliere,et al.  Ionizing radiations in pregnancy and teratogenesis: a review of literature. , 2005, Reproductive toxicology.

[36]  M. Krmar,et al.  Radioactivity of the soil in Vojvodina (northern province of Serbia and Montenegro). , 2004, Journal of environmental radioactivity.

[37]  M. Iqbal,et al.  Measurement of environmental radioactivity for estimation of radiation exposure from saline soil of Lahore, Pakistan , 2005 .

[38]  A. Baeza,et al.  Natural Radioactivity in Soils of the Province of Cáceres (Spain) , 1992 .