Variables: dissolved_oygen dissolved_organic_carbon total_organic_carbon Keywords: high resolution mass spectrometry land use Systems: groundwater Substances: 1-Hydroxy-Benzotriazole (ASOKPJOREAFHNY-UHFFFAOYSA-N) 1-(3-Chlorophenyl)-piperazin (VHFVKMTVMIZMIK-UHFFFAOYSA-N)