Approximately 1 gram of sediment samples were placed in a preweighed Teflon vessel and was added with analytical grade reagents, 7ml 65% HNO3 and 1ml 30% H2O2 and digested using a microwave (Milestone ETHOS labstation) set at the following parameters: 1000 watts 10 mins. at 200°C then 20 min at 20°. After digestion samples were diluted to volume of 25ml and exposed to FAAS for the determination of Cu, Pb and Zn concentration