Concentration Of Residual Chlorine And Its Health Effects In The Drinking Water Of The Kirkuk City

Chlorine is one of the basic sterilizers in the process of sterilizing drinking water in most countries of the world for its wide availability and low cost where it works to eliminate the causes of diseases in drinking water effectively through the destruction of membranes and attack the basic enzymes of those organisms. The process of sterilization of chlorinated drinking water depends on the added chlorine dose and the contact time the residual chlorine is of great importance in maintaining the quality of drinking water. Therefore, the residual chlorine concentration in the drinking water of the city of Kirkuk was studied and some factors affecting them such as water temperature turbidity electrical conductivity total soluble salts and pH of five stations by five samples per station during the study period, which lasted between January and July 2017. The results of the study showed that the concentration of residual chlorine ranged from 0.8 - 3 mg / L where it was higher than the limit allowed within the standards also the results showed an inverse relationship between residual chlorine concentration and water temperature While the turbidity and concentrations of total dissolved solids, electrical conductivity, and pH were within Iraqi standards