Comparison of the sample collection strategies for the investigation of pollution stage of some heavy metals in marine sediments

In this work, sampling collection strategies were compared for the determination of some heavy metals (Pb, Cr, Ni) and investigate their effects on the marine pollution. The sampling area is a natural bay using as a shipbuilding industries for three decades especially. To determine the permanent heavy metal pollution in this area, the sediment samples were taken different strategies; i) the bay were divided square pieces which is 200 m length, and the samples were taken this distance (total 71 point), ii) the samples were taken along the shore, then 200 m away the shore and 400 m away the shore (total 58 point). After the sample collection using ISO 5667-12 and EPA sampling procedure, the samples were prepared for the metal analysis. Acid treated samples were analyze by graphite furnace atomic absorption spectrometry. As a results both strategies were (are) compared for investigation of some heavy metals pollution in marine sediment. The preliminary results were found between below LOD and 401.0 mg/kg for lead, and between 0.10 and 1005.0 mg/kg for chromium. Finally, the permanent heavy metal pollution is investigated in this bay.