title: Pharmaceuticals in hospital wastewater: their ecotoxicity and contribution to the environmental hazard of the effluent.
abstract: Nowadays, pharmaceuticals are found in every compartment of the environment. Hospitals are one of the main sources of these pollutant emissions sent to wastewater treatment plants (WWTP) that are poorly equipped to treat these types of compounds efficiently. In this work, for each pharmaceutical compound found in hospital wastewater (HWW), we have calculated a hazard quotient (HQ) corresponding to the highest concentration measured in HWW divided by its predicted no effect concentration (PNEC). Thus we have assessed the contribution of each compound to the ecotoxicological threat of HWW taken as a whole. Fifteen compounds are identified as particularly hazardous in HWW. In future more attention should be given to their analysis and replacement in hospitals, and to their elimination in WWTPs. This work also highlights the lack of knowledge of the ecotoxicity of certain pharmaceutical compounds found in HWW at high concentrations (mgL(-1)). In order to extend this study, it is now necessary to investigate ecotoxic risks linked to various emission scenarios, focusing in particular on dilution in the aquatic environment and the production of metabolites, especially during transit inside WWTPs.
authors: University of Lyon, ENTPE, CNRS, UMR 5023 LEHNA, 2 Rue Maurice Audin, 69518 Vaulx-en-Velin, France. Electronic address: frederic.orias@entpe.fr.
authors: Orias
authors: O
authors: Frédéric
authors: University of Lyon, ENTPE, CNRS, UMR 5023 LEHNA, 2 Rue Maurice Audin, 69518 Vaulx-en-Velin, France.
authors: Perrodin
authors: P
authors: Yves
mesh_terms: D064420:Drug-Related Side Effects and Adverse Reactions / Q000209:etiology; D054750:Ecotoxicology; D004784:Environmental Monitoring; D015386:Hazardous Substances / Q000032:analysis* / Q000633:toxicity; D006761:Hospitals; D006801:Humans; D004364:Pharmaceutical Preparations / Q000032:analysis*; D018570:Risk Assessment; D062065:Wastewater / Q000032:analysis* / Q000633:toxicity; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000633:toxicity
chemical_list: D015386:Hazardous Substances; D004364:Pharmaceutical Preparations; D062065:Wastewater; D014874:Water Pollutants, Chemical
keywords: Ecotoxicity; Hazard quotient; Hospital wastewater; Pharmaceuticals