Variables: total_organic_carbon electric_conductivity Keywords: land use Substances: 1-[(4-Chlorophenyl)phenylmethyl]piperazine (UZKBSZSTDQSMDR UHFFFAOYSA-N) 1-Naphthylacetic acid (PRPINYUDVPFIRX-UHFFFAOYSA-N) MCPA (WHKUVVPPKQRRBV-UHFFFAOYSA-N)