Journal
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
Volume 103, Issue 4, Pages 610-616Publisher
SPRINGER
DOI: 10.1007/s00128-019-02701-2
Keywords
Veterinary pharmaceuticals; Fluorescence spectrophotometry; Organic micropollutants; Swine wastewater
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Funding
- Laboratorio Nacional de Nano y Biomateriales del CINVESTAV
- Consejo Nacional de Ciencia y Tecnologia (CONACYT)
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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 beta-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 mu g mL(-1) for enrofloxacin, 1.427 mu g mL(-1) for oxytetracycline, and 9.748 mu g 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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