In this study, the heavy metal and radioactive properties of Iznik Lake were investigated. Concentration values of the first (Ag, Bi, Mo, Sn, Se, Zn, As, B, Cd, Co, Cr, Cu, Ni, Pb, Pt and Sb) and second (Na, Mg, K, Ca, P, S, Fe, Al and Mn) group of elements in borehole 1 (BH-1) drilling did not show much variation from the top to the bottom of the drilling. Concentration values of the first group of elements in borehole 2 (BH-2) drill samples decreased at higher levels of drilling. In addition, natural and anthropogenic radionuclides were measured by gamma spectrometry, and the results of environmental natural radioactivity of Iznik Lake and its surroundings were determined. In the measurement results, Ra-226 was found to be below the world average value at all locations. It is assumed that the determination of K-40 values above the average values was due to agricultural activities carried out intensively in the study area. Th-232 values were found to be below the world average value in drilling samples; Cs-137 values were below the background level in all samples. According to these results, the study area does not contain any unnatural radioactivity.
If the inline PDF is not rendering correctly, you can download the PDF file here.
1. Meric E. Nazik A. Avsar N. Alpar B. Unlu S. & Gokasan E. (2009). Evidences of a possible Marmara Sea-Iznik lake connection in Quarternary: determination of ostracods and foraminifers in the recent sediments of the Iznik Lake (Bursa-NW Turkey). Journal of Istanbul Earth Sciences22(1) 1–19.
2. Basar H. Gurel S. & Katkat A. V. (2004). Heavy metal contents of soils soiled by different water sources in Lake Iznik. Journal of Uludag University Agricultural Faculty18(1) 93–104.
3. Viehberg F. A. Damci E. Ulgen U. B. Franz S. O. Roeser P. A. Wulf S. Wager B. Çagatay M. N. Litt T. & Meles M. (2012). Investigation of Paleo-environmental effects in the Late Pleistocene and Holocene periods at Lake Iznik. In Proceedings of the 65th Geological Congress of Turkey 2–6 April 2012 Ankara Turkey pp. 282–283.
4. UNSCEAR. (2000). United Nations Scientific Committee on the Effects of Atomic Radiation Sources and Effects of Ionizing Radiation UNSCEAR 2000 Report to the General Assembly with scientific annexes. Volume I: Sources. New York: United Nations. Available from https://www.unscear.org/unscear/en/publications/2000_1.html.
5. Degerlier M. (2007). Determination of environmental natural radioactivity of Adana and surrounding area and finding annual effective dose equivalents of natural radiations. Unpublished Ph.D. Thesis Cukurova University Institute of Science and Technology Department of Physics.
6. Kapdan E. Taskin H. Kam E. Osmanlioglu A. E. Karahan G. & Bozkurt A. (2011). A study of environmental radioactivity measurements for Cankiri Turkey. Radiat. Prot. Dosim.150(3) 398–404.
7. Basar H. Gurel S. & Katkat A. V. (2009). Metal status of soils and plants irrigated with water from Lake Iznik Turkey. Commun. Soil Sci. Plant Anal.40(15/16) 2545–2561.
8. Sagular E. K. Yumun Z. U. & Meric E. (2018). New didemnid ascidian spicule records calibrated to the nannofossil data chronostratigraphically in the Quaternary marine deposits of Lake Iznik (NW Turkey) and their Paleoenvironmental interpretations. Quat. Int.486 143–155.
9. Meric E. Nazik A. Yumun Z. U. Buyukmeric Y. Avsar N. Sagular E. K. Koral H. & Gokasan E. (2018). Fauna and flora of drilling and core data from the Iznik Lake: The Marmara and the Black Sea connection. Quat. Int.486 156–184.
10. Yumun Z. U. & Kam E. (2017). Effects of radionuclides on the recent foraminifera from the clastic sediments of the Canakkale Strait-Turkey. J. Afr. Earth Sci.131 179–182.
11. Kam E. & Bozkurt A. (2007). Environmental radioactivity measurements in the Kastamonu region of northern Turkey. Appl. Radiat. Isot.65(4) 440–444.
12. Bozkurt A. Yorulmaz N. Kam E. Karahan G. & Osmanlioglu A. E. (2007). Assessment of environmental radioactivity for Sanliurfa region of southeastern Turkey. Radiat. Meas.42(8) 1387–1391.
13. Osmanlioglu A. Kam E. & Bozkurt A. (2007). Assessment of background radioactivity level for Gaziantep Region of southeastern Turkey. Radiat. Prot. Dosim.124(4) 407–410.
14. Dede A. (2014). Evaluation of Iznik Lake water quality parameters with artificial neural networks. Unpublished Master Thesis Istanbul Technical University Institute of Science and Technology Department of Civil Engineering.