The impact of industrial effluents from Dakace indu strial area on the physicochemical properties of River Galma, Zaria, Nigeria

River Galma basin around Dakace Industrial Layout, Zaria, Nigeria, was studied between May 2011 and Ma y 2012 to determine the Influence of Industrial effluents from the Industrial Area, on the water Quality of tRiver by comparing the levels of physico-chemical parameters of water quality in the upstream area before the i effluent discharge points (Point sources) and downs tream after the effluent discharge points. Results indicated that Temperature, Electrical Conductivity, Total Dissolv ed Solids, Total Suspended Solids, Alkalinity, pH, Turbidity and Chloride showed the range 21.4-35.2 °C, 32.00-182.0 0 µS/cm, 25.02-77.09 mg/l, 27.38-78.24 mg/l, 15.81 -140.85 mg/l, 4.00-7.68, 32.30-458.00 NTU and 17.02-318 mg/ l respectively. All the parameters examined showed significant seasonal variation (P < 0.05), Temperat ure being the only exception. Most of the parameter s analyzed (Temperature, Electrical Conductivity, Total Dissol ved Solids, Total Suspended Solids and Alkalinity) were found to be within World Health Organization (WHO) and US-EP A permissible limit for drinking water quality. pH, Turbidity and Chloride were however, seriously impl icated. It was established from the results that in dustrial discharges had negative impact on the surface water quality of the river. Hence, extraction of water fthe river for domestic and agricultural purposes requires som e forms of physical and chemical treatment.