Occurrence of β-lactam and polyether ionophore antibiotics in lagoon water and animal manure

The Science of the Total Environment
Jongmun Cha, Kenneth Carlson

Abstract

The occurrence of micropollutants in agricultural wastes is an emerging area of interest due to the potential impact of these compounds on the environment. A sensitive and reliable analytical method using liquid chromatography-electrospray tandem mass spectrometry has been developed and validated for the determination of three β-lactam and three polyether ionophore antibiotics in lagoon water and animal manure matrices. The method was applied to evaluate the occurrence of these compounds from participating farms in northern Colorado. Seven of the 19 lagoon water samples and two of the six animal manures showed detectable. The three targeted β-lactams (cephapirin, penicillin G, cloxacillin) were found at 0.97-43.31 μg/L in the lagoon water samples. Of the three targeted polyether ionophores, only monensin (94 to 1077 μg/L) was detected in the beef runoff pond water samples. Only cloxacillin was measured in the dairy animal manure samples at levels from 8.09 to 45.20 μg/kg. No cephapirin, penicillin G, cloxacillin, salinomycin, or narasin A were detected in any solid animal manure sample. These results indicate that elevated concentrations of β-lactam and ionophore compounds might be found in lagoon or runoff pond waters and soli...Continue Reading

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Citations

Oct 31, 2020·International Journal of Environmental Research and Public Health·Xiuge GaoShanxiang Jiang
Feb 13, 2021·Environmental Pollution·Rayane Kunert LangbehnHugo Moreira Soares
Oct 17, 2020·Environmental Science and Pollution Research International·Débora Jesabel PérezMirta Lujan Menone
Jun 18, 2021·The Science of the Total Environment·Lili ZhangChongxuan Liu

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