Accumulation of antibiotics and tet resistance genes from swine wastewater in wetland soils

Lin Liu1,2, Yu-hong Liu1, Chao-xiang Liu1, Xu Huang1

1 Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
2 University of Chinese Academy of Sciences, Beijing 100049, China

Abstract


The accumulated characteristics of typical veterinary antibiotics (tetracyclines, sulfonamides, quinolones and macrolides) and tetracycline resistance (tet) genes in the different wetland soils (Krasnozem and Chernozem), and the effects from Phragmites australis were evaluated in this study. Results indicated that the concentrations of targeted antibiotics and tet genes in soils with swine treatment would increase as time progressed. The tet genes and targeted antibiotics (except sulphonamides) at different depth profiles showed a similar change tendency, namely the concentrations of those remained at a consistently higher level in the surface layer of the soils system (P < 0.05). The targeted tetracyclines showed the highest concentration in the soils (61.73

Keywords


antibiotics; antibiotic resistance genes; constructed wetland; livestock wastewater; plant

Full Text:

 Subscribers Only