抗生素
抗生素耐药性
废水
微生物学
生物
生物技术
环境科学
环境工程
作者
Xiaojie Sun,Lei Su,Jianyuan Zhen,Zhibin Wang,Kashif Ali Panhwar,Shou‐Qing Ni
出处
期刊:Chemosphere
[Elsevier]
日期:2024-09-01
卷期号:: 143263-143263
标识
DOI:10.1016/j.chemosphere.2024.143263
摘要
Swine wastewater application can introduce antibiotics, antibiotic resistance genes (ARGs) into environments. Herein, the full-scale transmission of antibiotics, ARGs and their potential carriers from an intensive swine feedlot to its surroundings were explored. Results showed that lincomycin and doxycycline hydrochloride were dominant antibiotics in this ecosystem. Lincomycin concentration were strongly associated with soil bacterial communities. According to the risk quotient (RQ), lincomycin was identified as posing higher ecological risk in aquatic environments. ARGs and mobile genetic elements (MGEs) abundance in wastewater were reduced after anaerobic treatment. Notably, ARGs composition of environmental samples were clustered into two groups based on if they were directly affected by the wastewater. However, there were no remarkable difference of ARGs abundance among environmental samples. The total abundance of ARGs was positively related to that of MGEs. Pathogens Escherichia coli and Enterococcus revealed strong connection with qnrS, tet and sul. Overall, this study highlights the importance of responsible antibiotics use in livestock production and appropriate treatment technology before agricultural application and discharge.
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