Occurrence and Ecotoxicological Risk Assessment of 14 Cytostatic Drugs in Wastewater
2014
Martin, Julia | Camacho-Muñoz, Dolores | Santos, Juan Luis | Aparicio, Irene | Alonso, Esteban
Cytostatic drugs are pharmaceutically active compounds used in chemotherapy to prevent or disrupt cell division. Only a few environmental studies have been focused on cytostatic drugs, in spite of their toxicity, their increasing consumption, and their discharge into municipal sewage. This fact can be mainly due to the lack of methods for their simultaneous analysis. This research describes the occurrence of 14 cytostatic drugs in influent and effluent wastewater from four wastewater treatment plants located in Seville (Spain) during 1-year period. A preliminary environmental risk assessment was also carried out. Five cytostatic drugs (cytarabine, etoposide, gemcitabine, iphosphamide, and methotrexate) were detected in influent wastewater at concentration levels up to 464 ng L⁻¹(cytarabine). Six of them (cytarabine, doxorubicin, gemcitabine, iphosphamide, paclitaxel, and vinorelbine) were detected in effluent wastewater at concentration levels up to 190 ng L⁻¹(cytarabine). Most of the detected cytostatic drugs are not significantly removed during wastewater treatment. Nevertheless, neither ecotoxicological nor genotoxical risks are expected to occur at the measured concentrations on the aquatic environment.
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