Variables: dissolved_oygen electric_conductivity Keywords: micropollutants land use Substances: 5-Fluorouracil (GHASVSINZRGABV-UHFFFAOYSA-N) 1-Methyl-Benzotriazole (HXQHRUJXQJEGER-UHFFFAOYSA-N) 1-3-Dimethyl-2-imidazolidinon (CYSGHNMQYZDMIA-UHFFFAOYSA-N)