| 余军楠,方昊,胡建林,王壮,丁程成,袁和忠,王瑟,崔益斌.江苏四个典型克氏原螯虾养殖区抗生素污染特征与生态风险评估[J].农业环境科学学报,2020,39(2):386-393. |
| 江苏四个典型克氏原螯虾养殖区抗生素污染特征与生态风险评估 |
| Contamination characteristics and ecological risk assessment of antibiotics in four typical Procambarus clarkii aquaculture environments in Jiangsu Province, China |
| 投稿时间：2019-09-05 |
| DOI：10.11654/jaes.2019-0983 |
| 中文关键词: 江苏 克氏原螯虾 抗生素 污染特征 生态风险评估 |
| 英文关键词: Jiangsu Province Procambarus clarkii antibiotics contamination characteristics ecological risk assessment |
| 基金项目:江苏省自然科学基金项目（BK20170948）；江苏省高等学校自然科学研究面上项目（17KJB610007）；国家自然科学基金项目（31572623） |
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| 中文摘要: |
| 为揭示江苏克氏原螯虾养殖环境中抗生素的分布特征和污染现状，利用超高效液相色谱-串联质谱法（UPLC-MS/MS）调查浦口和盱眙两个地区4个典型养殖塘水和沉积物中抗生素的残留情况。共检出14种抗生素（包括4种大环内酯类、2种四环素类、4种喹诺酮类和4种磺胺类），除浦口两养殖塘水体中的CTC HCL、OFL和AZI（浓度分别为16.528~57.140 ng·L-1和9.803~47.400 ng·L-1），其他抗生素均以低浓度存在。抗生素浓度与水质指标的相关性分析结果表明，抗生素在水环境中的降解可能受水体富营养化、有机污染程度等水质状况的影响。基于RQs值对养殖环境中的抗生素进行风险评估，它们对生态系统中浮游动物的生长基本不会造成威胁；对藻类等浮游植物而言，浦口养殖水体中部分大环内酯类（SP、CTM）和喹诺酮类（OFL）抗生素具有中高度风险（0.161 ≤ RQs ≤ 2.92），盱眙养殖环境中目标抗生素生态风险较低（RQs ≤ 0.181）。研究表明，江苏（特别是盱眙）克氏原螯虾养殖水体中抗生素污染水平相对较低，但仍存在一定的生态风险。建议采取全面的抗生素控制措施，以保护水产养殖生态系统的健康。 |
| 英文摘要: |
| 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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