Variables: dissolved_organic_carbon Keywords: monitoring Substances: 2-n-Octyl-4-isothiazolin-3-on (OIT) (JPMIIZHYYWMHDT-UHFFFAOYSA-N) 4-Hydroxy Diclofenac (KGVXVPRLBMWZLG-UHFFFAOYSA-N) AMDOPH (IRTZMJWVZQYURE-UHFFFAOYSA-N)