期刊
ENVIRONMENTAL POLLUTION
卷 159, 期 7, 页码 1877-1885出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2011.03.034
关键词
Antibiotics; Sediment; Yellow River; Hai River; Liao River
资金
- Chinese Academy of Sciences [KZCX2-EW-108]
- State Key Laboratory of Organic Geochemistry [SKLOG2009A02]
- National Natural Science Foundation of China (NSFC) [40821003, 40688001]
- Guangdong Provincial Natural Science Foundation [8251064004000001]
The occurrence of four classes of 17 commonly used antibiotics (including fluoroquinolones, tetracycline, sulfonamides, and macrolides) was investigated in the sediments of the Yellow River, Hai River and Liao River in northern China by using rapid resolution liquid chromatography-tandem mass spectrometry. Higher concentrations were detected for most antibiotics in the sediments of the Hai River than in the sediments of the other rivers. Norfloxacin, ofloxacin, ciprofloxacin and oxytetracycline in the three rivers were most frequently detected with concentrations up to 5770, 1290, 653 and 652 ng/g, respectively. High frequencies and concentrations of the detected antibiotics were often found in the downstream of large cities and areas influenced by feedlot and fish ponds. Good fitted linear regression equations between antibiotic concentration and sediment physicochemical properties (TOC, texture and pH) were also found, indicating that sediment properties are important factors influencing the distribution of antibiotics in the sediment of rivers. (C) 2011 Elsevier Ltd. All rights reserved.
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