期刊
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
卷 80, 期 -, 页码 208-215出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ecoenv.2012.03.002
关键词
Antibiotics; Laizhou Bay; Bohai Sea; River discharge; Risk assessment
资金
- Chinese Academy of Sciences [KZCX2-YW-Q02-01, KZCX1-YW-06, KZCX2-YW-Q07-04]
- CAS/SAFEA [KZCX2-YW-T001]
- Shandong Province Project [2007GG2QT06018]
The presence of thirteen antibiotics categorized into four different groups (fluoroquinolones, macrolides, sulfonamides and trimethoprim) was investigated in the rivers discharging to the Laizhou Bay and the seawater of the bay, and the impacts of river discharge on the marine environment were assessed. The results revealed that the same antibiotics predominated in both the river water and the seawater. Additionally, the detected antibiotics in the river water were generally higher than those in the inner bay and in the open bay, reflecting the importance of the riverine inputs as a source of antibiotics. Risk assessment based on the calculated risk quotients (RQ) showed that enoxacin, ciprofloxacin, and sulfamethoxazole in the two aquatic environments both posed high ecological risks (RQ > 1) to the most sensitive aquatic organisms Vibrio fischeri, Microcystis aeruginosa and Synechococcus leopoliensis, respectively. (C) 2012 Elsevier Inc. All rights reserved.
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