Distribution patterns of antibiotic residues in an urban river catchment

The residual patterns of 23 target antibiotics in five classes of compound in catchment sediments of a rapidly urbanizing city in east China were studied. A total of 14 antibiotics were detected in the catchment. The dominant classes were tetracyclines and fluoroquinolones and these occurred at subs...

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Bibliographic Details
Published in:Water and environment journal : WEJ 2019-02, Vol.33 (1), p.31-39
Main Authors: Chen, Yongshan, Xi, Xiuping, Xu, Jinghua, Xie, Ruijia, Jiang, Jinping
Format: Article
Language:English
Subjects:
Antibiotics
catchment
Catchment area
Chlortetracycline
Environmental risk
Farms
Fluoroquinolones
Livestock
Livestock farming
Medicine
Ningbo
residual pattern
Residues
River catchments
Rivers
Sediments
Spatial distribution
Suburban areas
Tetracyclines
Urban areas
Urbanization
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Summary:The residual patterns of 23 target antibiotics in five classes of compound in catchment sediments of a rapidly urbanizing city in east China were studied. A total of 14 antibiotics were detected in the catchment. The dominant classes were tetracyclines and fluoroquinolones and these occurred at substantial concentrations. High environmental risk at the sites sampled may be associated with antibiotics detected at high concentrations. For example, at one site chlortetracycline was found to occur at concentrations ≤ 4496 ng/g. Source traceability indicates that high intensity of urbanization (e.g. hospitals and livestock farms) had a high spatial relationship with sites of high antibiotic contaminations. Urban and suburban areas had some impacts on antibiotic residues in the catchment, especially on veterinary antibiotics such as chlortetracycline in suburban areas. Moreover, antibiotics detected at high concentrations in urban areas included fluoroquinolones associated with human medicine.
ISSN:1747-6585
1747-6593
DOI:10.1111/wej.12366