Variables: total_organic_carbon pH Keywords: MetFrag pesticides metabolites land use Substances: Acetazolamide (BZKPWHYZMXOIDC-UHFFFAOYSA-N) 1-3-Dimethyl-2-imidazolidinon (CYSGHNMQYZDMIA-UHFFFAOYSA-N) 1-Propanesulfonate (KCXFHTAICRTXLI-UHFFFAOYSA-N)