Trace metal fractions, sources, and risk assessment in sediments from Umurbey Stream (Çanakkale-Turkey)

Geochemical partitioning of Cu and Zn in Pelabuhanratu Bay sediment

“…Quantification of the geochemical partitioning of heavy metals in sediments is necessary to understand the nature of the metals in sediments. The nature and bonds of metals in sediment were analyzed using a geochemical partitioning method of the sequential extraction process (SEP), proposed by the European Community Bureau of Reference (BCR), or the BCR-SEP procedures used in many studies [22][23][24][25][26]. The geochemical partition method has been applied in many studies to provide information such as i) characteristics of pollution sources, ii) evaluation of bioavailability and metal mobilization, and iii) identification of metal binding to assess metal accumulation, pollution, and transport mechanisms [27,28,29].…”

“…For instance, in the pristine river sediment, concentrations of Cu and Zn varies from 7.1-27.1 mg/kg and 36-146 mg/kg, respectively [42]. Furthermore, concentration of these metals in upper continental crust is 14.3 mg Cu/kg and 52 mg Zn/kg [24]. However, the concentrations of these metals were mostly lower than those of standard quality according to the Australian and New Zealand Environment and Conservation Council and Hong Kong Interim Sediment Quality Guidelines, that is, 65 mg Cu/kg and 200 mg Zn/kg [43,44].…”