Abstract
A growing concern exists over water contamination by veterinary pharmaceuticals from small pig farms in Yucatan, Mexico, where the anaerobic digesters installed as the wastewater treatment system are not operated properly. Therefore, considerable interest exists to develop analytical methods to detect these compounds and characterize their fate in the environment. In this study, the detection of three antibiotics (enrofloxacin, oxytetracycline and sulfamethoxazole) and a β-agonist (ractopamine) was carried out using fluorescence spectrophotometry, with a semi-quantitative approach and a low environmental impact. Wastewater samples from 10 pig farms were analyzed, detecting concentrations of approximately 0.043 μg mL−1 for enrofloxacin, 1.427 μg mL−1 for oxytetracycline, and 9.748 μg mL−1 for sulfamethoxazole. The detection of these pharmaceuticals in the effluents of treated wastewater from the biodigesters of the pig farms suggests the need to optimize the system and prevent the entry of these compounds into the environment.
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Acknowledgements
The authors would like to thank the Laboratorio Nacional de Nano y Biomateriales del CINVESTAV, Unidad Merida for the facilities and the equipment offered and Secretaría de Desarrollo Urbano y Medio Ambiente del Gobierno del Estado de Yucatan for allowing access to the farms, and finally, the authors are grateful for the financial support received from Consejo Nacional de Ciencia y Tecnología (CONACYT). Special thanks to Robin K Bagley for her kind help improving the English writing.
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León-Aguirre, K., Hernández-Núñez, E., González-Sánchez, A. et al. A Rapid and Green Method for the Determination of Veterinary Pharmaceuticals in Swine Wastewater by Fluorescence Spectrophotometry. Bull Environ Contam Toxicol 103, 610–616 (2019). https://doi.org/10.1007/s00128-019-02701-2
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DOI: https://doi.org/10.1007/s00128-019-02701-2