Determination of chlorinated furanones, hydroxyfuranones, and butenedioic acids in chlorine-treated water and in pulp bleaching liquor
Compounds with structural similarities to the potent bacterial mutagen 3-chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone, MX, have been synthesized and quantitatively determined in extracts of chlorination-stage bleaching liquors (CBL) from pulp mills, chlorine:treated aqueous solution of fulvic acids, chlorinated natural humic water, and chlorine-disinfected drinking water. In addition, a preliminary screening of the mutagenic potency of the compounds was performed. The compounds were found in the extracts with the exception of a few compounds not detected in the drinking water extracts. The compounds induced mutagenicity in Ames tester strain TA100 in tests performed without metabolic activation