Physico Chemical Analysis of Water from Asa River, Ilorin, Nigeria.
Water samples were taken at four different locations along the course of Asa river within Ilorin Ilorin, Kwara state, covering both dry and wet seasons and were subjected to physicochemical and heavy metal analysis. The result of temperature was found to range between 24.03 25.53 0 C during both seasons. Turbidity, conductivity, pH, TSS, TDS, Acidity, Alkalinity were found to be between 8.00 28.16 (NTU) 82.43 275.13 (uS/cm) 6.86 7.27, 16.13 152.30 (mg/l) 44.13 135.00 (mg/l) 26.33 50.23 (mg/l) and 188.46 405.06 (mg/l) respectively during the dry season, while during the wet season, 11.13 35.46 (NTU) 66.50 206.70 (uS/cm) 6.23 6.80, 12.73 244.00 (mg/l) 33.03 102.96 (mg/l) 28.80 55.40 (mg/l) and 86.23 302.33 (mg/l) were observed respectively. The lowest value of hardness, 47.20 mg/l CaCO 3 was recorded at location 1 (control) during the wet season. DO, BOD, COD were found to range between 4.80 9.30 (mg/l) 2.20 6.70 (mg/l) and 29.60 228.50 (mg/l) covering both seasons. The anions, Cl NO 3 SO 4 2 and PO 4 3 had overall mean values of 60.91, 8.37, 67.96 and 0.36mg/l respectively.