Characterization and biotoxicity assessment of dissolved organic matter in RO concentrate from a municipal wastewater reclamation reverse osmosis system

- The molecular weight 1-3 kDa was dominant in the basic and neutral DOM fractions.
- The hydrophilic neutrals contributed to the majority of the DOC and genotoxicity.
- The hydrophobic neutrals had high antiestrogenic activity per DOC of the fractions.