Occurrence, Comparison and Priority Identification of Antibiotics in Surface Water and Sediment in Urbanized River: A Case Study of Suzhou Creek in Shanghai

Xuhui Li, Yuan Yuan, Dou Zhang, Xiao Li, Dehuan Li and Xiangrong Wang
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Xuhui Li: Department of Environmental Science and Engineering, Fudan University, Shanghai 200438, China
Yuan Yuan: Department of Environmental Science and Engineering, Fudan University, Shanghai 200438, China
Dou Zhang: Department of Environmental Science and Engineering, Fudan University, Shanghai 200438, China
Xiao Li: Department of Environmental Science and Engineering, Fudan University, Shanghai 200438, China
Dehuan Li: Department of Environmental Science and Engineering, Fudan University, Shanghai 200438, China
Xiangrong Wang: Department of Environmental Science and Engineering, Fudan University, Shanghai 200438, China

Sustainability, 2022, vol. 14, issue 14, 1-19

Abstract: Antibiotics in water have attracted increasing attention due to their potential threat to aquatic ecosystems and public health. Most previous studies have focused on heavily polluted environments, while ignoring urbanized rivers with high population density. Taking Suzhou Creek in Shanghai as an example, this study attempted to explore the antibiotic pollution characteristics of typical urbanized rivers. Further, it screened out priority antibiotics so as to provide reference for the regular monitoring of antibiotics in urban surface water in the study’s later stage. Four classes of 27 antibiotics in surface water samples and sediment samples were detected and analyzed by SPE-UPLC-MS/MS under both wet season and dry season. Results demonstrate that the total amount of antibiotics detected reached 1936.9 ng/L and 337.3 ng/g in water samples and sediment samples, respectively. Through Pearson correlation analysis, it can be shown that there is a very significant correlation between a variety of antibiotics in water and sediment. The results of ecological risk assessment based on risk quotient (RQ) show that certain antibiotics presented high and medium risk to the surrounding ecosystem. Finally, the priority antibiotics selected by optimized priority screening method were EM, SPD, CLR and RTM. Therefore, we have proven that the antibiotics being discharged in urbanized rivers show different types of antibiotics, while presenting a toxicological risk to certain species.

Keywords: urbanized rivers; antibiotic; environmental risk assessment; priority antibiotics (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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