Variables: dissolved_organic_carbon electric_conductivity Substances: 1-(3-Chlorophenyl)-piperazin (VHFVKMTVMIZMIK-UHFFFAOYSA-N) 2-Methyl-4-isothiazolin-3-one (BEGLCMHJXHIJLR-UHFFFAOYSA-N) Keywords: high resolution mass spectrometry monitoring