1 Natural organic matter (NOM) is a critical parameter for measuring drinking water quality. Levels of NOM are associated with taste, odour, colour, chemical treatment dosage, and disinfectant by-product (DBP) formation. There are several tools accepted by drinking water quality experts which are used to evaluate NOM: total organic carbon (TOC), dissolved organic carbon (DOC), UV254, and specific ultraviolet absorbance (SUVA)

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