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Wei R.,Jiangsu Provincial Key Laboratory of Animal Derived Food Safety | Wei R.,Key Open Laboratory of Edible Agricultural Products Safe Monitoring and Control | Ge F.,Nanjing Institute of Environmental Sciences | Huang S.,Jiangsu Provincial Key Laboratory of Animal Derived Food Safety | And 5 more authors.
Chemosphere | Year: 2011

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 63.6μgL-1, respectively. The maximum concentration of 0.55μgL-1 for cyromazine, 3.67μgL-1 for chlortetracycline, 0.63μgL-1 for sulfadoxine, 39.5μgL-1 for doxycycline and 0.64μgL-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. © 2010.


Wei R.,Jiangsu Provincial Key Laboratory of Animal Derived Food Safety | Ge F.,Nanjing Institute of Environmental Sciences | Chen M.,Jiangsu Provincial Key Laboratory of Animal Derived Food Safety | Wang R.,Jiangsu Provincial Key Laboratory of Animal Derived Food Safety
Journal of Environmental Quality | Year: 2012

Antimicrobial agent residues are becoming an intractable environmental problem in soil, surface, and underground water. To obtain a broad profile of residues in animal wastewater and surface water, 24 animal wastewater, 8 animal farm effluent, 18 river water, and 8 pond water samples taken in Jiangsu in eastern China were monitored for enrofloxacin, ciprofloxacin, and florfenicol using solid phase extraction and high performance liquid chromatography/ electrospray ionization-tandem mass spectrometry (HPLC/ESI- MS/MS) techniques. The results revealed that two antibacterials were detected simultaneously in 49.1% of samples, followed by three antibacterials (22.6%) and one antibacterial (22.6%). Up to 3.35, 5.93, and 2.10 μg L-1 for ciprofloxacin, 1.09, 4.24, and 0.50 μg L-1 for enrofloxacin, and 0.95, 2.40, and 2.84 μg L-1 for florfenicol were detected in animal farm-effluent, river, and pond water, respectively. The maximum concentrations of ciprofloxacin and enrofloxacin in animal wastewaters were 7.49 and 8.77 μg L-1, respectively. Furthermore, residue levels of ciprofloxacin and florfenicol showed at least two statistical differences between any two sampling areas or two animal farms. Enrofloxacin showed no statistical difference among the sampling areas and the animal farms. © 2012 by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.


PubMed | Jiangsu Provincial Key Laboratory of Animal Derived Food Safety
Type: Journal Article | Journal: Chemosphere | Year: 2011

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 g L(-1), respectively. The maximum concentration of 0.55 g L(-1) for cyromazine, 3.67 g L(-1) for chlortetracycline, 0.63 g L(-1) for sulfadoxine, 39.5 g L(-1) for doxycycline and 0.64 g 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.

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