Variables: dissolved_oygen dissolved_organic_carbon concentration Substances: 1-3-Dimethyl-2-imidazolidinon (CYSGHNMQYZDMIA-UHFFFAOYSA-N) 2 -3 -di-O-acetyl-5 -deoxy-5-fluorocytidin (NWJBWNIUGNXJGO-RPULLILYSA-N) 1-(3-Trifluoromethylphenyl)-piperazine (KKIMDKMETPPURN-UHFFFAOYSA-N)