Seasonal Variability of Heavy Metals in Surface Sediment of Lake Sapanca, Turkey |
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Authors: | Fatih Duman Ahmet Aksoy Dilek Demirezen |
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Institution: | (1) Faculty of Arts and Sciences, Department of Biology, Erciyes University, 38039 Kayseri, Turkey |
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Abstract: | Lake Sapanca is exposed to heavy urbanization and industrialization because of its natural beauty and its proximity to the
metropolitan İstanbul, Turkey. In this study, it was aimed to investigate seasonal changes of some heavy metals (Pb, Cr, Cu,
Mn, Ni, Zn and Cd) concentration of surface sediment. Nine different stations were chosen as sampling points. Samples were
taken every three months and the seasonal and annual average concentration of the elements were determined. Seasonal highest
values of heavy metals were observed as follows; Cr, Cu, Mn, Ni and Zn in Summer, Cd in Autumn. There was no seasonal difference
for Pb, Cr and Cd. It seems that Lake Sapanca has not been polluted yet. However, it was found that Cu and Ni concentrations
in surface sediment exceed lowest effect level. |
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Keywords: | Lake Sapanca Heavy metal Sediment Seasonal variability |
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