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Antibiotic detection in drinking water treatment plant in Baghdad, Iraq

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Document pages: 11 pages

Abstract: The persistence of antibiotics in aquatic environment has attracted people s attention to its potential impact on drinking water quality and human health. The study analyzed the presence of antibiotics in drinking water from two sewage treatment plants in Baghdad. Before analysis, the collected samples were separated by hydrophilic lipophilic balance (HLB) cylinder solid phase extraction. The antibiotics detected in drinking water, raw water and finished water were analyzed and evaluated by high performance liquid chromatography (HPLC), fluorescence detector and UV detector. The results confirmed that different antibiotics, including fluoroquinolones and b-lactams, were detected in raw water and finished water. The most common antibiotic is hghest concentration of 1.270 μg L−1 in the raw water of Al-Wihda plant, whereas the highest concentration of levofloxacin was 0.177 μg L−1, while amoxicillin was not detected in this plant. In contrast, ciprofloxacin was found in both raw water and finished water of Al-Rasheed plant and recorded highest concentration of 1.344 and 1.312 μg L−1, respectively. Moreover, the residual amount of levofloxacin in the raw water was up to 0.414 μg L−1, whereas amoxicillin was shown to be the most detectable drug in the raw water of Al-Rasheed plant, with a concentration of 1.50 μg L−1. The results of this study revealed the existence of antibiotic drugs in raw and finished water and should be included in the Iraqi standard for drinking water quality assessment.

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