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Trace level analysis and risk assessment of typical antibiotics in drinking water by liquid chromatography-tandem mass spectrometry (LC-MC/MS)
Feng Li1,3; Feng Lei2,4; Cheng Yanru1; Zhang Jun5; Zhang Sheng1
2019-11-01
摘要This research evaluated the occurrence and distribution of 28 antibiotics from the sulfonamides, tetracyclines, macrolides, fluoroquinolones, beta-lactams and the others in drinking water in upper reach of Three Gorges Reservoir, China. With three types of eight kinds of antibiotics detected, the concentration in the range of 0.4-140.0 ng/L includes sulfa sulfamethoxazole (SMX), sulfamethazine (SMZ), macrolide erythromycin, roxithromycin (ERM), roxithromycin (ROM), tylosin (TYL), lincomycin (LIN), chloramphenicol amine benzene alcohol (CAP), florfenicol (FF). In addition to CAP, the remaining seven kinds of antibiotics are poultry drugs, and the usage rank of FF and LIN are the top five in the antibiotics list of China. According to the analysis of different water sources, ecological risk level (RQ(sum)) from high to low were T-R-CK > C- R-BB > T-L- JM > C-R-DY > T-R- GQ > T-L-Z J > C-L-GSQ > C-R-LT > C- R-FSB, the RQ(sum) of T-R-CK water source up to 1.981, indicating that the corresponding aquatic organisms in the water source exhibit higher toxicity risk. The detection of antibiotics in C-R- FSB and C-R-LT water source were at low risk, indicating that both were affected by human activities at minimal interference. According to the analysis of the detection of antibiotics, SMX, TYL, ERM and ROM showed moderate risk level, the potential impact on ecological should be paid more attention. In view of the risk of antibiotics are major livestock and poultry drugs, the Three Gorges Reservoir area should further regulate the use of antibiotics in livestock and poultry breeding.
关键词Trace analysis Risk assessment Antibiotics Drinking water LC-MC/MS Environmental protection
DOI10.5004/dwt.2019.24218
发表期刊DESALINATION AND WATER TREATMENT
ISSN1944-3994
卷号168页码:184-192
通讯作者Zhang Sheng(254305323@qq.com)
收录类别SCI
WOS记录号WOS:000493810900019
语种英语