DETERMINATION AND EVALUATION OF SEASONAL CHANGES OF DBPs AFTER CHLORINATION IN NETWORKS USING UNDERGROUND WATER. MU?, TURKEY CASE

Abstract

This study aimed to determine the seasonal change of the concentrations of trihalomethanes (THMs) and one of the newly emerging byproducts haloacetonitriles (HANs), the most abundant group of some disinfection by-products (DBPs) forming as a result of chlorination of drinking water supplied from 2 different reservoirs to the city centre of Mus for disinfection purposes and called chlorinated organic halogens. The quantitative determination of these compounds, some of which may have car-cinogenic properties, and the evaluation of their possible effects on public health constitute the im-portance of the study. The results show that although there is not sufficient chlorination in both water networks and total organic carbon (TOC) values are low in underground water, the total THMs some-times exceed the 100 mu g/dm3 value applied in Turkey and pose a risk. It was observed that the total HAN values remain below the 2 mu g/dm3 concentration in both networks.