Physicochemical Parameters of Selected Ground and Surface Water Sourcesin Ijeun-Titun and Kuto Communities, Abeokuta, Ogun State, Nigeria

Abstract

The contamination of water resources usually results from effluent discharges, runoff andsewage disposal, which eventually deteriorate the quality. The study aims to determinethephysicochemical parameters of selected ground & surface water sources in Ijeun-Titun andKutoCommunity, Abeokuta, Ogun State Nigeria. Twelve (12) water samples were collectedfrom8groundwater sources and 4 streams (surface water) using grab sampling. The temperature andpHof the samples were determined in situ and then transported in an ice pack for furtherexamination at the chemistry laboratory of Pure Sciences, Nigeria. The analyzedphysicochemical parameters were carried out using standard laboratory methods. The findingsrevealed that the pH (5.60 – 7.34) and temperature (26.35 – 28.95 oC) in all the water sourceswere within the WHO thresholds (6.5 – 8.5 and 25- 29 oC) respectively. Electrical conductivity(40.50 – 1438.00 µS/cm) and total dissolved solids (28.00 – 720.00 mg/L) in 8.3%, salinity(28.00 – 721.00 mg/L) in 66.7%, total alkalinity (14.50 – 276.00 mg/L) and chloride ion(66.50–1876.00mg/L) in 33.3 % and 41.7% of the sources are higher than the WHOthresholds (1000µS/cm; <600, 100, 200 and 250 mg/L) respectively. Total acidity (11.00 – 110.00 mg/L) in8.3%of the water sources was above 100 mg/L while dissolved oxygen (9.00 – 39.20mg/L) inall thesources are not in tandem with the WHO thresholds (13 – 14 mg/L). In conclusion, thehighsalinity and chloride ion recorded with a special consideration for Well 4, and DOindicateananthropogenic influence and the presence of living organisms, Therefore, they are consideredunsafe and of public health concern.