Cr concentration varied between 36.45 and 120.11 mg/kg. The mean value was 58.4 mg/kg. It was less than world surface rock average and mean shale concentration as geochemical background level, Table 5. In comparison, it was found that Cr mean value exceeded WHO,USEPA and CCME Sediment guidelines. With except of S1, S4, S12 and S14, highest concentration of Cr was observed in spring than winter, Figure 3(i).