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Pharmaceutical active compounds in a heavily industrialized and urbanized bay, Eastern China

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Abstract

Bays are transition zones connecting freshwater ecosystems and marine ecosystems, and they are strongly influenced by intensive human activities. Pharmaceuticals are of concern in bay aquatic environments because of their potential threat to marine food web. We studied the occurrence, spatial distribution, and ecological risks of 34 pharmaceutical active compounds (PhACs) in Xiangshan Bay, a heavily industrialized and urbanized area in Zhejiang Province, Eastern China. PhACs were ubiquitously detected in the coastal waters of the study area. A total of twenty-nine compounds were detected in at least one sample. Carbamazepine, lincomycin, diltiazem, propranolol, venlafaxine, anhydro erythromycin, and ofloxacin had the highest detection rate (≥ 93%). These compounds were detected with maximum concentrations of 31, 127, 0.52, 1.96, 2.98, 75, and 98 ng/L, respectively. Human pollution activities included marine aquacultural discharge and effluents from the local sewage treatment plants. These activities were the most influential sources in this study area based on principal component analysis. Lincomycin was an indicator of veterinary pollution of coastal aquatic environment, and the concentrations of lincomycin were positively related to the total phosphorus in this area (r = 0.28, p < 0.05). Typical PhACs such as venlafaxine, ofloxacin, norfloxacin, roxithromycin, and clarithromycin were significantly and positively correlated with nitrate and total nitrogen (r > 0.26, p < 0.05) based on Pearson’s correlation analysis. Carbamazepine was negatively correlated with salinity (r <  − 0.30, p < 0.01). Land use pattern was also correlated with the occurrence and distribution of PhACs in the Xiangshan Bay. Some PhACs, i.e., ofloxacin, ciprofloxacin, carbamazepine, and amitriptyline posed medium to high ecological risks to this coastal environment. The results of this study could be helpful to understand the levels of pharmaceuticals, potential sources, and ecological risks in marine aquacultural environment.

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All data generated or analyzed during this study are included in this manuscript and published article.

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Funding

This work was supported by the National Natural Science Foundation of China (No. 31971489).

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Authors and Affiliations

Authors

Contributions

Tang Jianfeng contributed to the study conception and design. Material preparation and data collection and analysis were performed by Sun Jing, Ke Ziyan, Zhang Yujie, Wu Qin, and Chen Yihua. The first draft of the manuscript was written by Sun Jing, and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Jianfeng Tang.

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No animal or human parts were used in this study. All the authors are giving our ethical approval and consent for this paper to be published in your journal if found publishable.

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All the authors have read and approved this manuscript and take responsibility for its contents. The participant has consented to the submission of the manuscript to the journal.

Competing interest

The authors declare no competing interests.

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Responsible Editor: Hongwen Sun

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Highlights

Pharmaceutical active compounds were ubiquitous in the urbanized area in the Xiangshan Bay.

Lincomycin could be defined as an indicator of aquacultural pollution in the coastal aquatic environment.

Effluents from local sewage treatment plants should not be ignored when we evaluated the potential sources of pharmaceuticals in the urbanized bay used for marine aquaculture.

Amitriptyline had the highest ecological risk in the urbanized bay.

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Supplementary file1 (DOCX 1910 KB)

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Sun, J., Ke, Z., Zhang, Y. et al. Pharmaceutical active compounds in a heavily industrialized and urbanized bay, Eastern China. Environ Sci Pollut Res 30, 51624–51637 (2023). https://doi.org/10.1007/s11356-023-26019-z

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  • DOI: https://doi.org/10.1007/s11356-023-26019-z

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