Abstract
Water samples from river Indus at Kotri barrage were collected at an interval of 46 week sod analysed for sodium, potassium, calcium, magensium by flame atomic absorption spectroscopy (FAAS). Their average concentration ranged 5.6 to 93.4 mg/L. Copper, iron, nickel, cobalt, lead, manganese, cadmium and zinc were analysed by FAAS after preconcentration by solvent extraction. The overage amount of metal ion (n=20) found were in the range of 4.0-560 ug/L. The variation in the metal contents with seasons were recorded. Transport of metal contents down the Kotri barrage to Arabian sea were also calculated.