The Physicochemical Quality of Groundwater in Relation to Surface Water Pollution in Majidun Area of Ikorodu, Lagos State, Nigeria

摘要

The piece of investigation was carried out to study the ground water as well as surface water quality, nutrient status and physico-chemical characteristic of Majidun-Ilaje Area of Ikorodu, Nigeria. The study area is situated between 327’E - 328’E longitude and 637’E latitude and covers about 1.71km2 area of land. The present work has been conducted by monitoring two types of groundwater i.e. hand dug well water and borehole water of the community as well as the surface water i.e. river of the community. Attempts were made to study and analyze the physico-chemical characteristics of the water. Various parameters like Temperature, pH, Total Dissolved Solids, Total Hardness, Alkalinity, True and Apparent Color, Turbidity, Electrical Conductivity, Chemical Oxygen Demand, Total Organic Carbon, Total Organic Matter, Nitrate, Chloride, Phosphate, Sulphate, Sodium, Potassium, Calcium and Magnesium give a picture of quality parameter in both hand dug well and borehole water as well as river water of the community. By observing the result it can be concluded that the parameters which were taken for study of the water quality are below the pollution level for only borehole type of ground water which satisfy the requirement for the use of various purposes like domestic, agricultural, industrial etc. The quality of the hand dug wells and a closer borehole to the river is relatively above the permissible limit varying with depth and distance from the river. But in case of surface water, the water quality of the river is above the WHO and Federal EPA permissible limits.