Variables: electric_conductivity Keywords: micropollutants high resolution mass spectrometry pesticides metabolites Systems: groundwater Substances: Adenosine (OIRDTQYFTABQOQ-UHFFFAOYSA-N) 1-Hydroxy-Benzotriazole (ASOKPJOREAFHNY-UHFFFAOYSA-N) 1-Propanesulfonate (KCXFHTAICRTXLI-UHFFFAOYSA-N)