7 research outputs found
Occurrence, Distribution, and Ecological Risk of Fluoroquinolones in Rivers and Wastewaters
The use of fluoroquinolones for the treatment of infections in humans and animals has increased in Argentina, and they can be found in large amounts in water bodies. The present study investigated the occurrence and associated ecological risk of 5 fluoroquinolones in rivers and farm wastewaters of San Luis, Santa Fe, CĂłrdoba, Entre RĂos, and Buenos Aires provinces of Argentina by high-performance liquid chromatography coupled to fast-scanning fluorescence detection and ultraâhigh-performance liquid chromatography coupled to triple quadrupole mass spectrometry detection. The maximum concentrations of ciprofloxacin, enrofloxacin, ofloxacin, enoxacin, and difloxacin found in wastewater were 1.14, 11.9, 1.78, 22.1, and 14.2 ÎŒg Lâ1, respectively. In the case of river samples, only enrofloxacin was found, at a concentration of 0.97 ÎŒg Lâ1. The individual risk of aquatic organisms associated with water pollution due to fluoroquinolones was higher in bacteria, cyanobacteria, algae, plants, and anurans than in crustaceae and fish, with, in some cases, risk quotients >1. The proportion of samples classified as high risk was 87.5% for ofloxacin, 63.5% for enrofloxacin, 57.1% for ciprofloxacin, and 25% for enoxacin. Our results suggest that the prevalence of fluoroquinolones in water could be potentially risky for the aquatic ecosystem, and harmful to biodiversity.Fil: Teglia, Carla Mariela. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de BioquĂmica y Ciencias BiolĂłgicas. Laboratorio de Desarrollo AnalĂtico y QuimiometrĂa; ArgentinaFil: Perez, Florencia Antonella. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de BioquĂmica y Ciencias BiolĂłgicas. Laboratorio de Desarrollo AnalĂtico y QuimiometrĂa; ArgentinaFil: Michlig, NicolĂĄs. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de IngenierĂa QuĂmica. Programa de InvestigaciĂłn y AnĂĄlisis de Residuos y Contaminantes QuĂmicos; ArgentinaFil: Repetti, MarĂa Rosa. Universidad Nacional del Litoral. Facultad de IngenierĂa QuĂmica. Programa de InvestigaciĂłn y AnĂĄlisis de Residuos y Contaminantes QuĂmicos; ArgentinaFil: Goicoechea, Hector Casimiro. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de BioquĂmica y Ciencias BiolĂłgicas. Laboratorio de Desarrollo AnalĂtico y QuimiometrĂa; ArgentinaFil: Culzoni, Maria Julia. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de BioquĂmica y Ciencias BiolĂłgicas. Laboratorio de Desarrollo AnalĂtico y QuimiometrĂa; Argentin