Environ. Sci. Technol. 1994. 28, 2222-2227
Determination of Chlorinated 5-Methyl-5-hydroxyfuranones in Drinking Water, in Chlorinated Humic Water, and in Pulp Bleaching Liquor Robert F r a n r h and Leif Kronberg'
Department of Organic Chemistry, Abo Akademi University, Akademigatan 1, FIN-20500, Turku/Abo, Finland Hydroxyfuranones with monochloro-, dichlorc-, and trichle romethyl groups at C-5 (5-MHFs) were qualitatively and quantitatively determined in extracts of chlorination stage bleaching liquors (CBL) from a pulp mill, of chlorinated natural humic water (HW), and of three samples of drinking water (DW1-3) treated withvarious disinfectants. In addition, the mutagenic potency of the compounds in Ames tester strain TAlOOwas observed, and their stability in water at pH 2 and pH 8 was determined. In CBL, eight of the nine hydroxyfuranones studied were observed, and some of the compounds were found in concentrations higher than 0.5 mg/L. Thus, these compounds must be considered as major chlorinated byproducts of chlorine bleaching. In the drinking water extracts, the 5-dichloromethyl compounds and one 5-monochloromethyl compound were detected. The concentration of the compounds ranged from
