Determination of Radioactivity Levels in Soil Samples of Recep Tayyip Erdogan University Campus in Rize Province

Yıl 2023, Cilt: 4 Sayı: 2, 87 - 96, 31.12.2023

Esra Yılmaz Bayrak Hasan Baltaş

https://doi.org/10.53501/rteufemud.1274822

Öz

Bu çalışmada, Recep Tayyip Erdoğan Üniversitesi Zihni Derin Yerleşkesinden alınan 15 adet toprak örneğinde yüksek saflıkta bir germanyum dedektörü (HPGe) kullanılarak yapay (137Cs) ve doğal (226Ra, 232Th and 40K) radyonüklidlerin miktarları belirlenmiştir. 226Ra, 232Th, 40K ve 137Cs için aktivite değerleri sırasıyla 43.78 ile 62.58, 29.85 ile 41.61, 132.48 ile 346.44 ve 3.90 ile 202.94 Bq kg-1 arasında değişmiştir. UNSCEAR (2000) tarafından verilen dünya ortalama değerleri ile karşılaştırıldığında, toprak numuneleri için ortalama 226Ra, 232Th aktivite değerlerinin daha yüksek olduğu fark edilmiştir. 40K ve 137C için ortalama aktivite konsantrasyonlarının, UNSCEAR (2000) tarafından bildirilen dünya ortalama değerlerinden daha düşük olduğu gözlemlenmiştir. Bunun yanı sıra radyolojik tehlike indeksleri hesaplanarak bu indeksler uluslararası izin verilen değerlerle karşılaştırılmıştır. Yapılan bu araştırma, çalışma alanında toprak örneklerine maruz kalanlar açısından herhangi bir sağlık sorunu olmadığını göstermiştir.

Anahtar Kelimeler

Lifetime cancer risk, Radioactivity, Radiological hazard indices, Recep Tayyip Erdogan University, Soil

Kaynakça

• Ahmad, N., Jaafar, S.M., Bakhash, M., Rahim M. (2015). An overview on measurements of natural radioactivity in Malaysia. Journal of Radiation Research and Applied Sciences, 8, 136-141. https://doi.org/10.1016/j.jrras.2014.12.008
• Appleton, J.D., Kendall, G.M. (2022). Gamma-radiation levels outdoors in Great Britain based on K, Th and U geochemical data. Journal of Environmental Radioactivity, 251-252, 1-9. https://doi.org/10.1016/j.jenvrad.2022.106948
• Bakaç, M., Kumru, M.N. (1999). Gediz havzası topraklarındaki doğal radyoaktivite seviyesi, Çev-Kor Vakfı Ekoloji Dergisi, 8, 18-21.
• Baltas, H., Kiris, E., Dalgic, G., Cevik, U. (2016). Distribution of 137Cs in the Mediterranean mussel (Mytilus galloprovincialis) in Eastern Black Sea Coast of Turkey. Marine Pollution Bullettin, 107, 402–407. https://doi.org/10.1016/j.marpolbul.2016.03.032.
• Baltas, H., Kiriş, E., Sirin, M. (2017). Determination of radioactivity levels and heavy metal concentrations in seawater, sediment and anchovy (Engraulis encrasicolus) from the Black Sea in Rize, Turkey. Marine Pollution Bulletin, 116, 528-533. https://doi.org/10.1016/j.marpolbul.2017.01.016
• Baltaş, H., Şirin, M., Dalgıç, G., Çevik, U. (2018). An overview of the ecological half-life of the 137Cs radioisotope and a determination of radioactivity levels in sediment samples after Chernobyl in the Eastern Black Sea, Turkey. Journal of Marine Systems, 177, 21–27. https://doi.org/10.1016/j.jmarsys.2017.09.005
• Baltas, H., Sirin, M., Gokbayrak, E., Ozcelik, A.E. (2020). A case study on pollution and a human health risk assessment of heavy metals in agricultural soils around Sinop province, Turkey. Chemosphere, 241, 1-9. https://doi.org/10.1016/j.chemosphere.2019.125015
• Beck, H.L. (1972). The physics of environmental radiation fields. Natural radiation environment II, CONF-720805 P2, Proceedings of the Second International Symposium on the Natural Radiation Environment (p. 101-133), 07.08.1972, Houston, Texas, USA.
• Beretka, J., Matthew, P.J. (1985). Natural radioactivity of Australian building materials, industrial wastes and by-products. Health Physics, 48, 87–95.
• Bozkurt, A., Yorulmaz, N., Kam, E., Karahan, G., Osmanlioglu, A.E. (2007). Assessment of environmental radioactivity for Sanliurfa region of southeastern Turkey. Radiation Measurements, 42, 1387–1391. https://doi.org/10.1016/j.radmeas.2007.05.052
• Canbazoğlu, C., Turhan, Ş., Bakkal, A., Uğur, F.A., Gören, E. (2013). Analysis of gamma emitting radionuclides (terrestrial and anthropogenic) in soil samples from Kilis province in south Anatolia, Turkey. Annals of Nuclear Energy, 62, 153-157. http://dx.doi.org/10.1016/j.anucene.2013.05.040.
• Cengiz, G.B. (2017). Selim ilçesinin toprak örneklerinde doğal radyoaktivite düzeyleri ve radyolojik etkilerinin değerlendirilmesi. Kafkas Üniversitesi Fen Bilimleri Enstitüsü Dergisi 10(1), 37-47.
• Celik, N., Cevik, U., Celik, A., Koz, B. (2009). Natural and artificial radioactivity measurements in Eastern Black Sea region of Turkey. Journal of Hazardous Materials, 162, 146–153. https://doi.org/10.1016/j.jhazmat.2008.05.017
• Celik, N., Damla, N., Cevik, U. (2010). Gamma ray concentrations in soil and building materials in Ordu. Radiation Effects & Defects in Solids: Incorporating Plasma Science & Plasma Technology, 165, 1-10. https://doi.org/10.1080/10420150903173270
• Cevik, U., Damla, N., Karahan, G., Çelebi, N., Kobya, A.İ. (2006). Natural radioactivity in tap waters of Eastern Black Sea region of Turkey. Radiation Protection Dosimetry, 118, 88-92. https://doi.org/10.1093/rpd/nci325
• Chikasawa, K., Ishii, T., Sugiyama, H. (2001). Terrestrial gamma radiation in Kochi Prefecture, Japan. Journal of Health Science, 47(4), 362–372.
• Damla, N., Cevik, U., Kobya, A.I., Celik, A., Celik, N., Yıldırım I. (2011). Assessment of natural radioactivity and mass attenuation coefficients of brick and roofing tile used in Turkey. Radiation Measurements, 46, 701-708. https://doi.org/10.1016/j.radmeas.2011.06.004
• Duran, S.U., Küçükömeroğlu, B., Çiriş, A., Çelik, N. (2019). Radioactivity levels in soil and drinking water samples collected from Andon Region (Rize Province, Turkey). Karadeniz Fen Bilimleri Dergisi, 9(2), 253-263, https://doi.org/10.31466/kfbd.582464
• Hafızoğlu, N., Sahin, L., Ganioğlu, E., Ağgez, G., Baştemur, Y., İse, P. (2020). Assessment of natural and anthropogenic radioactivity of the Princes’ Islands in the Sea of Marmara. Water, Air & Soil Pollution, 231, 1-16. https://doi.org/10.1007/s11270-020-04631-w.
• ICRP (International Commission on Radiological Protection). (1991). 1990 Recommendations of the International Commission on Radiological Protection, Elsevier Health Sciences, 21, 1-3.
• Kayakökü, H., Doğru, M. (2017). Radioactivity analysis of soil samples taken from the western and northern shores of Lake Van, Turkey. Applied Radiation and Isotopes, 128, 231–236. https://doi.org/10.1016/j.apradiso.2017.07.019
• Kekelidze, N., Teimuraz, J., Tutberidze, B., Tulashvili, E., Mariam, A., Mtsariashvili, L. (2017). Radioactivity of soils in Mtskheta-Mtianeti region (Georgia). Annals of Agrarian Science, 15, 304-311. https://doi.org/10.1016/j.aasci.2017.07.003.
• Kucukomeroglu B., Yesilbag, Y. O., Kurnaz A., Celik, N., Cevik, U., Celebi, U. (2011). Radiological characterisation of Artvin and Ardahan provinces of Turkey. Radiation Protection Dosimetry, 145, 389-394. https://doi.org/10.1093/rpd/ncq442
• Kucukomeroglu B., Karadeniz A., Damla N., Yesilkanat C.M., Cevik U. (2016). Radiological maps in beach sands along some coastal regions of Turkey. Marine Pollution Bulletin, 112, 255–264. https://doi.org/10.1016/j.marpolbul.2016.08.007
• Kurnaz, A., Küçükömeroğlu, B., Keser, R., Okumusoglu, N.T., Korkmaz, F., Karahan, G., Çevik, U. (2007). Determination of radioactivity levels and hazards of soil and sediment samples in Fırtına Valley (Rize, Turkey). Applied Radiation and Isotopes, 65, 1281-1289. https://doi.org/10.1016/j.jenvrad.2011.02.009
• Kuş, A. (2017). Sakarya İli Toprak Örneklerinde Doğal Radyasyon Düzeyinin Belirlenmesi ve Radon Yayilim Hizlarinin Ölçülmesi, Master Thesis, Sakarya Üniversitesi, Fen Bilimleri Enstitüsü, Sakarya, Türkiye.
• Mamont-Ciesla, K., Gwiazdowski, B., Biernacka, M., Zak, A. (1981). Radioactivity of building materials in Poland. Natural Radiation Environment, 16(10), 551-557.
• Roberto C., Giuseppina I., Gabriella M., Daniela M., Massimo A., Salvatore G., Lenka T. (2015). In situ and laboratory measurements for radon transport process study. Journal of Radioanalytical and Nuclear Chemistry, 306, 673–684. https://doi.org/10.1007/s10967-015-4336-6
• Suresh Gandhi, M., Ravisankar, R., Rajalakshmi, A., Sivakumar, S., Chandrasekaran, A., Anand, D.P. (2014). Measurements of natural gamma radiation in beach sediments of north east coast of Tamilnadu, India by gamma ray spectrometry with multivariate statistical approach. Journal of Radiation Research and Applied Sciences, 7, 7–17. https://doi.org/110.1016/j.jrras.2013.11.001
• Şirin M. (2019). Evaluation of radioactive pollution in sediment samples of Borçka Dam Lake, Turkey. Cumhuriyet Science Journal, 40(3), 624-639. https://doi.org/10.17776/csj.526652
• Taskin H., Karavus M., Ay P., Topuzoglu A., Hidiroglu S., Karahan G. (2009). Radionuclide concentrations in soil and lifetime cancer risk due to gamma radioactivity in Kirklareli, Turkey. Journal of Environmental Radioactivity, 100, 49–53. https://doi.org/10.1016/j.jenvrad.2008.10.012
• Tzortzis M., Tsertos H., Christofides S., Christodoulides G. (2003). Gamma-ray measurements of naturally occurring radioactive samples from Cyprus characteristic geological rocks. Radiation Measurements, 37, 221-229. https://doi.org/10.1016/S1350-4487(03)00028-3
• UNSCEAR (United Nations Scientific Committee on the Effect of Atomic Radiation), (2000). Radiation sources and Effects of ionizing radiation, Report to General Assembly with Scientific Annexes, United Nations, New York, USA.