“…This is an area for which high-resolution mass spectrometry approaches present valuable tools for identification, e.g., through screening of cyanotoxins, 56 while fluorescence spectroscopy can provide early-warning signals of cyanobacterial bloom initiation. 57,58 The potential for multiparameter monitoring, e.g., microcystin-LR monitoring 59 along with DBP formation prediction and monitoring of municipal wastewater intrusion, 60 offered by both techniques is intriguing. For example, by using fluorescence spectroscopy, a humic-like component was found to correlate with the formation potential of trihalomethanes (THMs), while N-nitrosodimethylamine (NDMA) formation potential correlated to a protein-like component, 61,62 demonstrating connections between fluorescent properties and the formation of DBPs of different health concern.…”