Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China.
Shandong Yellow River Delta National Nature Reserve Administration Committee, Dongying 257091, China.
Sci Total Environ. 2024 Sep 15;943:173709. doi: 10.1016/j.scitotenv.2024.173709. Epub 2024 Jun 8.
Antibiotics and polycyclic aromatic hydrocarbons (PAHs) are common environmental contaminants in the aquatic region encompassing the estuary of the Yellow River and Laizhou Bay. But little information is available about the trophic transfer of antibiotics and PAHs in the marine food web of this area. This study investigated the occurrence and trophic transfer of 19 antibiotics and 16 PAHs in marine organisms from a food web of Laizhou Bay of the Yellow River estuary. Sulfonamides, fluoroquinolones, and 2 to 4-ring PAHs were the dominant contaminants in organisms. There was a significant positive correlation between the log total concentration of sulfonamides and trophic level (TL). Sulfadiazine, sulfamethazine, and erythromycin had biomagnification effects, while ciprofloxacin and ofloxacin had biological dilution effects. The log total concentration of PAHs had a significant negative correlation with TL. Naphthalene, fluorene, anthracene, pyrene, and benzo[g,h,i]perylene had biological dilution effects. The distinct correlations of trophic magnification factors D of antibiotics and K of 2 to 5-ring PAHs, indicating that the potential of these two coefficients for predicting their transfer. Risk assessment indicated that the consumption of seafood containing antibiotics and PAHs in Laizhou Bay of the Yellow River estuary posed health and carcinogenic risks to human, respectively.
抗生素和多环芳烃（PAHs）是黄河口和莱州湾水域常见的环境污染物。但是，有关这些地区海洋食物网中抗生素和 PAHs 的营养转移的信息很少。本研究调查了黄河口莱州湾海洋生物食物网中 19 种抗生素和 16 种 PAHs 的发生和营养转移。磺胺类药物、氟喹诺酮类和 2-4 环 PAHs 是生物体中的主要污染物。磺胺类药物的总浓度与营养级（TL）之间存在显著正相关。磺胺嘧啶、磺胺甲恶唑和红霉素具有生物放大效应，而环丙沙星和氧氟沙星具有生物稀释效应。PAHs 的总浓度与 TL 呈显著负相关。萘、芴、蒽、芘和苯并[g，h，i]苝具有生物稀释效应。抗生素的营养放大因子 D 和 2-5 环 PAHs 的 K 的明显相关性表明，这两个系数具有预测它们转移的潜力。风险评估表明，黄河口莱州湾海鲜中抗生素和 PAHs 的摄入分别对人类健康和致癌风险构成威胁。
