Determination of Nitrate and Nitrite in Surface Water in Evwreni Town, Delta State

Ten samples of surface water were collected at random from in and outskirt of Evwreni town, Ughelli North Local Government Area, Delta State. The concentration of nitrate (NO3 - ) and nitrite (NO2 ) in mg/L of the surface water were analyzed, using spectrophotometer method. The results obtained showed that the nitrate value ranged from 11.7 ± 0.1 to 12.8 ± 0.2 while that of nitrite ranged from 0.2 ±0.1 to 0.4 ±0.3mg/L and all values were within the maximum acceptable concentration by WHO. From the result obtained, the surface water samples analyzed were in compliance with drinking water standard based on national/international guidelines that provide assurance that such surface water is safe for consumption.