Persistence of antibiotics in the aquatic environment has raised concerns regarding their potential influence on potable water quality and human health. This study analyzes the presence of antibiotics in potable water from two treatment plants in Baghdad City. The collected samples were separated using a solid-phase extraction method with hydrophilic-lipophilic balance (HLB) cartridge before being analyzed. The detected antibiotics in the raw and finished drinking water were analyzed and assessed using high-performance liquid chromatography (HPLC), with Fluorometric detector and UV-detector. The results confirmed that different antibiotics, including fluoroquinolones and B-lactams were detected in the raw and finished water. The most frequently detected antibiotics were ciprofloxacin with highest 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 did not detect in this plant. In contrast, ciprofloxacine 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 showed to be the most detectable drugs 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.

Author(s) Details –

 Ansam R. Mahmood

The Ministry of Science and Technology, Baghdad, Iraq.

Halah H. Al-Haideri

Department of Biology, College of Science for Women, University of Baghdad, Baghdad 10070, Iraq.

 Fikrat M. Hassan

Department of Biology, College of Science for Women, University of Baghdad, Baghdad 10070, Iraq.

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Tag: – Antibiotic contamination fluorescence detection; fluoroquinolone antibiotics; solid phase extraction (SPE).


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