Variables: dissolved_oygen total_organic_carbon pH electric_conductivity concentration Keywords: pesticides metabolites land use Systems: groundwater Substances: 1-Methyl-Benzotriazole (HXQHRUJXQJEGER-UHFFFAOYSA-N) 2 -2 -Difluorodeoxyuridin (FIRDBEQIJQERSE-QPPQHZFASA-N)