Analysis of heavy metal of copper (Cu) and lead (Pb) at Siombak Lake North Sumatera Province

Abstract

This research to knew heavy metal concentrate of copper (Cu) and lead (Pb) in the water and sediment. From this results showed indicated physics chemical parameter of Siombak Lake stilled in the normal range. The concentrations heavy metal copper (Cu) in the water column all the stations in sequence 0.525 mg/l, 0.54 mg/l, 0.51 mg/l and then the concentration heavy metal lead (Pb) in the water column 0.00165 mg/l, 0.0156 mg/l, 0.0148 mg/l. While heavy metal concentration of copper (Cu) in the sediment all the stations in sequence 2.68 mg/kg, 2.47 mg/kg and 21.54 mg/kg and then concentration of heavy metal lead (Pb) of 6.045 mg/kg, 7.17 mg/kg and 4.77 mg/kg. This result indicated the concentration of heavy metal copper and lead in the water column had exceeded the quality standard and concentration of copper and lead in sediment had not exceeded the quality standard.