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渔业研究 ›› 2022, Vol. 44 ›› Issue (5): 426-443.DOI: 10.14012/j.cnki.fjsc.2022.05.002

• 论文与报告 • 上一篇    下一篇

闽江河口区水体抗生素污染特征及风险评价

刘四光,张乐蒙,黄智伟,陈岚,王键,陈凯   

  1. 福建海洋研究所,福建 厦门 361013
  • 收稿日期:2022-04-12 修回日期:2022-05-26 出版日期:2022-10-25 发布日期:2022-10-26
  • 通讯作者: 张乐蒙
  • 作者简介:刘四光(1979-),男,副研究员,博士,从事海洋化学研究. E-mail:lsg@fjio.net
  • 基金资助:
    国家自然基金专项项目(41949904);中央引导地方科技发展专项(2022L3015);福建省省属公益类科研院所基本科研专项(2019R1007-6)

Characteristics and risk assessment of antibiotic pollution in Minjiang River Estuary

  • Received:2022-04-12 Revised:2022-05-26 Online:2022-10-25 Published:2022-10-26

摘要: 2018年11月(旱季)和2019年9月(雨季)在闽江河口区域24个站位采集表层水,以固相萃取和液相色谱质谱联用仪(HPLC-MS/MS)为检测手段分析表层水中抗生素类污染物的含量,探讨抗生物类污染物的时空变化特征,并采用商值法评价其可能潜在的生态风险。结果显示,1)闽江河口区域共检出5类(磺胺类、大环内酯类、喹诺酮类、氯霉素类、硝基咪唑类)17种抗生素,总量变化范围为26.31~155.39 ng/L。2) 闽江河口上游、北港和南港水体中抗生素总量变化不大,河口下游呈一定的下降趋势;不同种类的抗生素具有不同的空间分布特征;抗生素检出种类及含量表现为旱季显著高于雨季。3) 生态风险评价结果显示,在旱季,磺胺甲恶唑具有高生态风险,红霉素和林可霉素具有中等生态风险;在雨季,仅红霉素具有中等生态风险。混合风险商(MHQ)结果显示,闽江河口区大部分站位处于生态风险阈值,需要进一步关注并加强管控。

关键词: 闽江河口区, 抗生素类污染物, 表层水体, 生态风险评价

Abstract: 24 stations were set up in Minjiang River Estuary in November 2018 (dry season) and September 2019 (rainy season). The contents and temporal-spatial distribution characteristics of 88 antibiotics in surface water of Minjiang River Estuary were analyzed by solid phase extraction and liquid chromatography tandem mass spectrometry (HPLC-MS / MS), and the ecological risk of antibiotic pollutants was also evaluated. Results showed that, 1) 17 antibiotics of 5 categories (sulfonamides, macrolides, quinolones, chloramphenicols, nitroimidazoles and others) were detected at 24 stations in Minjiang River Estuary, and the total amount varied from 26.31 to 155.39 ng /L. 2) In term of spatial distribution, the total amount of antibiotics did not change much in the upper reaches of Minjiang River Estuary, North port and South port, but it showed an obvious downward trend in the lower reaches. Different kinds of antibiotics displayed relatively different temporal and spatial distribution characteristics.Both the detected types and content of antibiotics in dry season were significantly higher than those in rainy season. 3) Based on the results of ecological risk assessment, sulfamethoxazole had high ecological risk, erythromycin and lincomycin had medium ecological risk in the dry season; erythromycin showed moderate ecological risk in rainy season. According to results of mixed risk entropy, most stations in Minjiang River Estuary area were around the ecological high-risk threshold, which needed further attention and strengthening management.

Key words: Minjiang River Estuary, antibiotic pollutants, surface water, ecological risk assessment

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