title: Occurrence of veterinary antibiotics in animal wastewater and surface water around farms in Jiangsu Province, China.
abstract: The objective of this investigation was to obtain a broad profile of veterinary antibiotics residues in animal wastewater and surface water around large-scale livestock and poultry farms in Jiangsu Province of China. Therefore, 53 samples collected from 27 large-scale animal farms in 11 cities and counties of Jiangsu Province in 2009, were monitored for 10 selected veterinary antibiotics using solid phase extraction and high performance liquid chromatography/electrospray ionization-tandem mass spectrometry (HPLC/ESI-MS/MS) techniques. Ten veterinary antibiotics were found in animal wastewaters, eight antibiotics were detected in pond waters, and animal farm-effluents and river water samples were contaminated by nine antibiotics. The most frequently detected antibiotics were sulfamethazine (75%), oxytetracycline (64%), tetracycline (60%), sulfadiazine (55%) and sulfamethoxazole (51%) which were detected with a maximum concentration of 211, 72.9, 10.3, 17.0 and 63.6 μg L(-1), respectively. The maximum concentration of 0.55 μg L(-1) for cyromazine, 3.67 μg L(-1) for chlortetracycline, 0.63 μg L(-1) for sulfadoxine, 39.5 μg L(-1) for doxycycline and 0.64 μg L(-1) for sulfaquinoxaline were determined in the collected samples. In general, the maximum concentration of the selected veterinary antibiotics was detected in animal wastewaters except for chlortetracycline in animal farm-effluents. In addition, residue levels of selected veterinary antibiotics in animal wastewater and surface water around the farms were related to animal species and have a high spatial variation.
authors.affiliation: Jiangsu Provincial Key Laboratory of Animal-Derived Food Safety, Nanjing 210014, China.
authors.forename: Ruicheng
authors.initials: R
authors.lastname: Wei
authors.forename: Feng
authors.initials: F
authors.lastname: Ge
authors.forename: Siyu
authors.initials: S
authors.lastname: Huang
authors.forename: Ming
authors.initials: M
authors.lastname: Chen
authors.forename: Ran
authors.initials: R
authors.lastname: Wang
mesh_terms: D000822:Animal Husbandry; D000818:Animals; D000900:Anti-Bacterial Agents / Q000032:analysis*; D002681:China; D002853:Chromatography, Liquid; D003612:Dairying; D004784:Environmental Monitoring; D005618:Fresh Water / Q000737:chemistry*; D011200:Poultry; D052616:Solid Phase Extraction; D021241:Spectrometry, Mass, Electrospray Ionization; D034421:Sus scrofa; D053719:Tandem Mass Spectrometry; D019155:Veterinary Drugs / Q000032:analysis*; D014865:Waste Disposal, Fluid; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014877:Water Pollution, Chemical / Q000706:statistics & numerical data
chemical_list: D000900:Anti-Bacterial Agents; D019155:Veterinary Drugs; D014874:Water Pollutants, Chemical