Determination of trace metal levels in seven fish species in lakes in Tokat, Turkey

The concentrations of trace metals in seven fish species collected from some lakes in Tokat, Turkey were determined using flame and graphite furnace atomic absorption spectrometry after microwave digestion methods. The average metal concentrations in the seven fish species varied in the following ranges: Fe, 64.3-197; Mn, 11.7-72.9; Zn, 11.9-38.6; Cu, 1.0-4.1; Pb, 0.7-2.4; Cr, 0.6-1.6; Ni, 1.2-3.4; Cd, 0.1-1.2 μg/g.