Antibiotics in coastal water and sediments of the East China Sea: Distribution, ecological risk assessment and indicators screening. (February 2020)

• Record Type: Journal Article
• Authors: Li, Feifei; Chen, Lyujun; Chen, Weidong; Bao, Yingyu; Zheng, Yuhan; Huang, Bei; Mu, Qinglin; Wen, Donghui; Feng, Chuanping
• Is Part Of: Marine pollution bulletin. Volume 151(2020)
• Publication Date: 2020-02
• Subjects: SAs sulfonamides -- MLs macrolides -- QNs quinolones -- TCs tetracyclines -- β-Ls β-lactams -- LMs lincomycins -- RQ risk quotient -- ECS East China Sea; Antibiotics -- Coastal environment -- Ecological risk assessment; Marine pollution -- Periodicals; Marine Biology -- Periodicals; Water Pollution -- Periodicals; Mer -- Pollution -- Périodiques; Publications périodiques; Pollution des mers; Lutte antipollution; Electronic journals; 363.7394
• DOI: 10.1016/j.marpolbul.2019.110810
• Languages: English
• ISSNs: 0025-326X

Abstract

Abstract: The distribution of 77 antibiotics in the coastal water and sediment from 3 bays of the East China Sea was investigated. There were 43 and 25 antibiotics detected with total concentrations of 30.8–2106.1 ng/L and 2.2–99.9 ng/g in water and sediment, respectively. Approximately 83.0% and 85.4% of the individual antibiotic concentrations were lower than 5.0 ng/L in water and 1.0 ng/g in sediment. Clindamycin (1.2–1507.9 ng/L, mean 183.8 ng/L) and erythromycin (ND–45.2 ng/g, mean 3.4 ng/g) were the most abundant in water and sediment, respectively. Ecological risk assessment revealed that the joint toxicity was enhanced when multiple antibiotics were present simultaneously. A decrease in the total antibiotic concentration and the ecological risk in water was observed from nearshore to offshore. Three antibiotics (sulfamethoxypyridazine, sulfamethoxazole and cinoxacin) were selected to be prioritized based on ecological risks for antibiotics monitoring and management of the coastal water in the East China Sea. Graphical abstract: Unlabelled Image Highlights: Distribution of 77 antibiotics were investigated in the coastal water and sediment. Indicators were screened from multiple antibiotics based on ecological risks. Coastal antibiotic contamination was proven to be acquired rather than innate. Ecological risk of antibiotics decreased as the offshore distance increased.