Assessment of Water Quality Parameters of Agaie/Lapai Dam in Niger State, Nigeria

Abstract

The physic-chemical parameters of Agaie-lapai dam were analyzed weekly for a period of 11months from January to November, 2012, and five (5) stations were identified within the dam for the investigation. The physico-chemical parameters like temperature, dissolve oxygen, P","alkalinity,, hardness, conductivity, chloride, transparency, phosphate, biochemical oxygen demand and nitrate were assessed. Results of some of the parameters were recorded on the field and others were taken to the laboratory for analysis. For dissolved oxygen, reagent 1 and reagent 2 were fixed on the field before samples were taken to laboratory for further experiment. There was significant difference in most results obtained whilst there was no significant difference p>0.05 in pH regardless of stations and weeks. But significant difference p<0.05 were observed in dissolved oxygen, nitrate, temperature, conductivity, hardness, alkalinity, biological oxygen demand, transparency in regard to the stations. These variation could be due to influx or organic waste from surface run offs and inorganic waste deposited by man. The physic-chemical parameters observed, indicated that most of them falls with the recommended range or standard by the federal ministry of environment (FMENV, 2000)