Abstract
In this study, we determined the concentrations of 9 kinds of haloacetic acids and 3 kinds of halosuccinic acids in raw water and drinking water by capillary column GC/MS. Chlorosuccinic acid, bromosuccinic acid and 9 kinds of haloacetic acids were detected at higher concentrations and greater frequencies in drinking water than in raw water. In Tokyo metropolitan area, the concentrations of chlorosuccinic acid and bromosuccinic acid in drinking water were below the limit of determination to 0.60 μg/l in district A; those concentrations were below the limit of determination to 0.45 μg/l and the limit of determination in districts B and C, respectively. The concentration ratios of total halosuccinic acids to the total haloacetic acids were about 5 % in many cases. When the drinking water was boiled for 5 minutes using a kettle, the concentration of chlorosuccinic acid was decreased.
