Variables: electric_conductivity Substances: 1-3-Dimethyl-2-imidazolidinon (CYSGHNMQYZDMIA-UHFFFAOYSA-N) 2-4-dimethylphenylformamide (JOFDPSBOUCXJCC-UHFFFAOYSA-N) Systems: groundwater Keywords: MetFrag micropollutants monitoring pesticides metabolites