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| Contamination characteristics and ecological risk assessment of antibiotics in four typical Procambarus clarkii aquaculture environments in Jiangsu Province, China |
| Received:September 05, 2019 |
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| KeyWord:Jiangsu Province;Procambarus clarkii;antibiotics;contamination characteristics;ecological risk assessment |
| Author Name | Affiliation | E-mail | | YU Jun-nan | School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China | | | FANG Hao | School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China | fh@nuist.edu.cn | | HU Jian-lin | School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China | | | WANG Zhuang | School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China | | | DING Cheng-cheng | Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China | | | YUAN He-zhong | School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China | | | WANG Se | School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China | | | CUI Yi-bin | Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China | cyb@nies.org |
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| Abstract: |
| To study the occurrence and contamination by antibiotics in Procambarus clarkii aquaculture environments of the Jiangsu Province, ultra-high performance liquid chromatography-tandem mass spectrometry(UPLC-MS/MS)was used to investigate the residues of antibiotics in water and sediment samples of four typical ponds in Pukou and Xuyi Districts. A total of 14 antibiotics(including 4 macrolides, 2 tetracyclines, 4 quinolones, and 4 sulfonamides)were detected in this study. Antibiotics were presented in low concentrations except for CTC, HCL, OFL, and AZI in the water samples of two ponds in the Pukou District(16.528~57.140 ng·L-1 and 9.803~47.400 ng·L-1, respectively). Correlation analysis between antibiotic concentrations and water-quality indexes showed that the degradation of antibiotics in the water environment might be affected by water quality, such as eutrophication and organic pollution. A risk assessment for the antibiotics in the aquaculture environments based on RQ values was conducted, which posed no threat to the growth of zooplankton in the ecosystems. For phytoplankton such as algae, there was a medium or high risk for several macrolides(SP, CTM)and the quinolone(OFL)antibiotics in the water samples(0.161 ≤ RQs ≤ 2.92)in the Pukou District. The ecological risk of targeted antibiotics in the Xuyi aquaculture environment was generally low(RQs ≤ 0.181). Our results indicate that the pollution level of antibiotics in the Procambarus clarkii aquaculture environments of the Jiangsu Province(especially in the Xuyi District)is relatively low. However, there is still a certain extent of ecological risk in these districts. Comprehensive measures of antibiotics control are recommended to preserve the aquaculture ecosystem. |
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