Variables: total_organic_carbon electric_conductivity Keywords: MetFrag micropollutants high resolution mass spectrometry pesticides metabolites land use Substances: 1-Methyl-Benzotriazole (HXQHRUJXQJEGER-UHFFFAOYSA-N) 1-3-Dimethyl-2-imidazolidinon (CYSGHNMQYZDMIA-UHFFFAOYSA-N)