In the study, samples were seasonally taken from Berdan River- which is one of the major rivers in the province of Mersin -and accumulation levels of heavy metals such as Cadmium (Cd), Chromium (Cr), Manganese (Mn), Nickel (Ni), Zinc (Zn), Copper (Cu), Lead (Pb), Iron (Fe) and Aluminum (Al) were determined in sediment samples

According to results of the study, heavy metal accumulation levels in the sediment Fe; 18521.91 µg/g, Al;12907.70 µg/g, Mn; 377.40 µg/g, Ni; 167.68 µg/g, Cr; 57.81 µg/g, Zn; 45.59 µg/g, Cu; 28.38 µg/g, Pb; 22.82 µg/g and Cd; 4.54 µg/g were fasten down and heavy metals were in the sequence as follows: Fe>Al>Mn>Ni>Cr>Zn>Cu>Pb>Cd. Finally, it has been observed that Berdan River is under the threat of pollution.