Chen Hui, Liu Shan, Xu Xiang-Rong, Zhou Guang-Jie, Liu Shuang-Shuang, Yue Wei-Zhong, Sun Kai-Feng, Ying Guang-Guo
Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; University of Chinese Academy of Sciences, Beijing 100049, China.
Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.
Mar Pollut Bull. 2015 Jun 15;95(1):365-73. doi: 10.1016/j.marpolbul.2015.04.025. Epub 2015 Apr 22.
In this study, the occurrence and spatial distribution of 38 antibiotics in surface water and sediment samples of the Hailing Bay region, South China Sea, were investigated. Twenty-one, 16 and 15 of 38 antibiotics were detected with the concentrations ranging from <0.08 (clarithromycin) to 15,163ng/L (oxytetracycline), 2.12 (methacycline) to 1318ng/L (erythromycin-H2O), <1.95 (ciprofloxacin) to 184ng/g (chlortetracycline) in the seawater, discharged effluent and sediment samples, respectively. The concentrations of antibiotics in the water phase were correlated positively with chemical oxygen demand and nitrate. The source analysis indicated that untreated domestic sewage was the primary source of antibiotics in the study region. Fluoroquinolones showed strong sorption capacity onto sediments due to their high pseudo-partitioning coefficients. Risk assessment indicated that oxytetracycline, norfloxacin and erythromycin-H2O posed high risks to aquatic organisms.
本研究调查了中国南海海陵湾地区地表水和沉积物样本中38种抗生素的存在情况及空间分布。在海水、排放污水和沉积物样本中，分别检测到38种抗生素中的21种、16种和15种，浓度范围从<0.08（克拉霉素）至15,163ng/L（土霉素）、2.12（甲烯土霉素）至1318ng/L（红霉素-H2O）、<1.95（环丙沙星）至184ng/g（金霉素）。水相中抗生素浓度与化学需氧量和硝酸盐呈正相关。源分析表明，未经处理的生活污水是研究区域抗生素的主要来源。氟喹诺酮类因其高伪分配系数而对沉积物表现出较强的吸附能力。风险评估表明，土霉素、诺氟沙星和红霉素-H2O对水生生物构成高风险。
