%A"Xiaosong, Chang [Department of Environmental Hygiene, School of Military Preventive Medicine, Third Military Medical University, Chongqing 400038 (China)]" %A"Meyer, Michael T [United States Geological Survey, 4821 Quail Crest Place, Lawrence, Kansas 66049 (United States)]" %A"Xiaoyun, Liu [Center for Disease Prevention and Control, Lanzhou Military Region, Lanzhou 730020 (China)]" %A"Qing, Zhao" %A"Hao, Chen" %A"Jian, Chen" %A"Zhiqun, Qiu" %A"Lan, Yang [Department of Environmental Hygiene, School of Military Preventive Medicine, Third Military Medical University, Chongqing 400038 (China)]" %A"Jia, Cao [Department of Military Toxicology, School of Military Preventive Medicine, Third Military Medical University, Chongqing 400038 (China)]" %A"Shu Weiqun, E-mail: xm0630@sina.co [Department of Environmental Hygiene, School of Military Preventive Medicine, Third Military Medical University, Chongqing 400038 (China)]" %D2010 %I; %2 %J[] %K54 ENVIRONMENTAL SCIENCES, CHINA, ERYTHROMYCIN, EXTRACTION, HOSPITALS, HOUSES, IONIZATION, LIQUID COLUMN CHROMATOGRAPHY, MASS SPECTROSCOPY, OXYTETRACYCLINE, SEWAGE, SULFONAMIDES, WASTE WATER, WATER TREATMENT, AMIDES, ANTIBIOTICS, ANTI-INFECTIVE AGENTS, ANTIMICROBIAL AGENTS, ASIA, BUILDINGS, CHROMATOGRAPHY, DRUGS, HYDROGEN COMPOUNDS, LIQUID WASTES, MEDICAL ESTABLISHMENTS, ORGANIC COMPOUNDS, ORGANIC NITROGEN COMPOUNDS, ORGANIC SULFUR COMPOUNDS, OXYGEN COMPOUNDS, RESIDENTIAL BUILDINGS, SEPARATION PROCESSES, SPECTROSCOPY, TETRACYCLINES, WASTES, WATER %PMedium: X; Size: page(s) 1444-1450 %TDetermination of antibiotics in sewage from hospitals, nursery and slaughter house, wastewater treatment plant and source water in Chongqing region of Three Gorge Reservoir in China %XSewage samples from 4 hospitals, 1 nursery, 1 slaughter house, 1 wastewater treatment plant and 5 source water samples of Chongqing region of Three Gorge Reservoir were analyzed for macrolide, lincosamide, trimethoprim, fluorouinolone, sulfonamide and tetracycline antibiotics by online solid-phase extraction and liquid chromatography-tandem mass spectrometry. Results showed that the concentration of ofloxacin (OFX) in hospital was the highest among all water environments ranged from 1.660 mug/L to 4.240 mug/L and norfloxacin (NOR, 0.136-1.620 mug/L), ciproflaxacin (CIP, ranged from 0.011 mug/L to 0.136 mug/L), trimethoprim (TMP, 0.061-0.174 mug/L) were commonly detected. Removal range of antibiotics in the wastewater treatment plant was 18-100% and the removal ratio of tylosin, oxytetracycline and tetracycline were 100%. Relatively higher removal efficiencies were observed for tylosin (TYL), oxytetracycline (OXY) and tetracycline (TET)(100%), while lower removal efficiencies were observed for Trimethoprim (TMP, 1%), Epi-iso-chlorotetracycline (EICIC, 18%) and Erythromycin-H{sub 2}O (ERY-H{sub 2}O, 24%). Antibiotics were removed more efficiently in primary treatment compared with those in secondary treatment. - This study give the first insight into the concentration of antibiotics in receiving waters from 4 hospitals, 1 nursery, 1 slaughter house, 1 wastewater treatment plant and 5 source water of Chongqing region of Three Gorge Reservoir %0Journal Article %N;Journal ID: ISSN 0269-7491; ENPOEK; TRN: GB10R2610093799 %1 %CUnited Kingdom %Rhttps://doi.org/10.1016/j.envpol.2009.12.034 Journal ID: ISSN 0269-7491; ENPOEK; TRN: GB10R2610093799 GBN %GEnglish