Variables: dissolved_oygen dissolved_organic_carbon total_organic_carbon electric_conductivity Substances: 2-4-dimethylphenylformamide (JOFDPSBOUCXJCC-UHFFFAOYSA-N) 1-Hydroxy-Benzotriazole (ASOKPJOREAFHNY-UHFFFAOYSA-N) Keywords: monitoring high resolution mass spectrometry pesticides metabolites land use