Water samples from river Indus at Kotri barrage were collected at an interval of 4-6 week and analysed for sodium, potassium, calcium, magnesium by flame atomic absorptionspectrometry (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 average amount of metal ion (n=20) found were in the range of 4.0-560 mg/L.The variation in the metal contents with season were recorded. Transport of metal contents down the Kotri barrage to Arabian see was also calculated.
M Y KHUHAWAR ,V K DEWANI ,I A ANSARI ,
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