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The Safety of Consuming Water Dropwort Used to Purify Livestock Wastewater Considering Accumulated Antibiotics and Antibiotic Resistance Genes

文献类型： 外文期刊

作者： Yao, Dongrui 1 ; Chang, Yajun 1 ; Wang, Wei 1 ; Sun, Linhe 1 ; Liu, Jixiang 1 ; Zhao, Huijun 3 ; Zhang, Weiguo 4 ;

作者机构： 1.Chinese Acad Sci, Inst Bot Jiangsu Prov, Jiangsu Key Lab Res & Utilizat Plant Resources, Nanjing 210014, Peoples R China

2.Chinese Acad Sci, Nanjing Bot Garden Mem Sun Yat Sen, Nanjing 210014, Peoples R China

3.Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou 730070, Peoples R China

4.Jiangsu Acad Agr Sci, Inst Agr Resources & Environm, Nanjing 210014, Peoples R China

关键词： antibiotic; antibiotic resistance gene; health risk; water dropwort; livestock wastewater

期刊名称：ANTIBIOTICS-BASEL （ 影响因子：5.222； 五年影响因子：5.396 ）

ISSN： 2079-6382

年卷期： 2022 年 11 卷 4 期

页码：

收录情况： SCI

摘要： Research is lacking on the health risks of antibiotics and antibiotic resistance genes (ARGs) in water dropwort grown in livestock wastewater. Our results showed that antibiotics from livestock wastewater were absorbed and bioaccumulated by water dropwort. The concentration of antibiotics was higher in the roots than in the stems and leaves. The health-risk coefficients of antibiotics in water dropwort were below the threshold (<0.1), indicating that in this case study, the consumption of water dropwort used to purify livestock wastewater was safe for humans considering accumulated antibiotics. ARGs were closely correlated between livestock wastewater and water dropwort, with the results showing that all 13 ARGs detected in the livestock wastewater were also found in the water dropwort. Tetracycline resistance genes were more abundant than the other ARGs in both the livestock wastewater and water dropwort. The estimated daily intake of ARGs in water dropwort for humans ranged from 2.06 x 10(6) to 7.75 x 10(12) copies g(,)(-1) suggesting the potential risk of intaking ARGs in water dropwort cannot be ignored. Although the safety of consuming water dropwort used to purify livestock wastewater, considering accumulated antibiotics and ARGs, was assessed in this study, more studies should be conducted to ensure we fully understand the health risks.

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