Molecules, Vol. 29, Pages 1480: Monitoring Pharmaceuticals and Personal Care Products in Healthcare Effluent Wastewater Samples and the Effectiveness of Drug Removal in Wastewater Treatment Plants Using the UHPLC-MS/MS Method

This study reveals the prevalence of several different drugs; mean concentrations of 702 μg L−1 of iomeprol, 48.8 μg L−1 of iopromide, 29.9 μg L−1 of gabapentin, 42.0 μg L−1 of caffeine and 82.5 μg L−1 of paracetamol were present. An analysis of 20 samples from ten WWTPs revealed different removal efficiencies for different analytes. Paracetamol was present in the inflow samples of all ten WWTPs and its removal efficiency was 100%. Analytes such as caffeine, ketoprofen, naproxen or atenolol showed high removal efficiencies exceeding 80%. On the other hand, pharmaceuticals like furosemide, metoprolol, iomeprol, zolpidem and tramadol showed lower removal efficiencies. Four pharmaceuticals exhibited higher concentrations in WWTP effluents than in the influents, resulting in negative removal efficiencies: warfarin at −9.5%, indomethacin at −53%, trimethoprim at −54% and metronidazole at −110%. These comprehensive findings contribute valuable insights to the pharmaceutical landscape of wastewater from healthcare facilities and the varied removal efficiencies of Czech WWTPs, which together with the already published literature, gives a more complete picture of the burden on the aquatic environment.
Source: Molecules - Category: Chemistry Authors: Tags: Article Source Type: research