Variables: dissolved_organic_carbon total_organic_carbon electric_conductivity concentration Substances: 1-Naphthylacetic acid (PRPINYUDVPFIRX-UHFFFAOYSA-N) 5-Methylpyridine-3-carboxylic-acid (DJDHHXDFKSLEQY-UHFFFAOYSA-N) Keywords: MetFrag micropollutants monitoring