Variables: dissolved_oygen dissolved_organic_carbon total_organic_carbon electric_conductivity Substances: 1-Hydroxy-Benzotriazole (ASOKPJOREAFHNY-UHFFFAOYSA-N) 3-5-Diamino-2-4-6-triiodobenzoic acid (GOQCZMZLABPEME-UHFFFAOYSA-N) Keywords: monitoring high resolution mass spectrometry pesticides metabolites land use