Characteristics and removal of antibiotics and antibiotic resistance genes in a constructed wetland from a drinking water source in the Yangtze River Delta

Author(s):  
Jinping Du ◽  
Ting Xu ◽  
Xueping Guo ◽  
Daqiang Yin
2020 ◽  
Vol 742 ◽  
pp. 140592
Author(s):  
Juan Yang ◽  
Hong Wang ◽  
Dustin James Roberts ◽  
Hao-Nan Du ◽  
Xin-Feng Yu ◽  
...  

Author(s):  
Ting Xu ◽  
Wanting Zhao ◽  
Xueping Guo ◽  
Hongchang Zhang ◽  
Shuangqing Hu ◽  
...  

Abstract Background Aquatic ecosystems are considered to be among the most important reservoirs of antibiotic resistance genes (ARGs). Drinking water sources were usually parts of lakes and rivers in Yangtze River Delta, among which Qingcaosha Reservoir is the largest river impoundment and benefit the population of more than 13 million for Shanghai city. In this study, we aimed at investigating the distribution of antibiotics and ARGs to characterize the pollution across various sites in Qingcaosha Reservoir in three seasons. Results Sulfamethoxazole, sulfamonomethoxine and penicillin G potassium salt were the dominant antibiotics and of high detection frequencies in this reservoir. Sulfonamide resistance genes ( sul1 and sul2 ) were the most prevalent and predominant genes. Higher total relative abundance of the ARGs were detected in the site closest to the inflow than those in other sites. Overall, the concentrations of antibiotics in May (spring) were relatively lower than November (autumn) and February (winter). Correlation analysis indicated sul1 , ermB and mphA had positive correlation with corresponding antibiotics in February and intI1 was also greatly positively correlated to sul1 , sul2 , ermB and mphA . Conclusion In conclusion, the antibiotics and ARGs were widespread in Qingcaosha Reservoir. Our result indicated that the drinking water reservoir might serve as gene reservoir for antibiotic resistance and mobile gene element intI1 can serve as a medium to contribute to the widespread of various ARGs. What is more, we considered that Reservoir could be served as a functional area contributing to the elimination of ARGs.


Author(s):  
Xiaotong Dong ◽  
Shaohua Sun ◽  
Lirong Xu ◽  
Wei Hou ◽  
Mingquan Wang ◽  
...  

2020 ◽  
Author(s):  
Ting Xu ◽  
Wanting Zhao ◽  
Xueping Guo ◽  
Shuangqing Hu ◽  
Hongchang Zhang ◽  
...  

Abstract Background Aquatic ecosystems are considered to be among the most important reservoirs of antibiotic resistance genes (ARGs). Drinking water sources were usually parts of lakes and rivers in Yangtze River Delta, among which Qingcaosha Reservoir is the largest river impoundment and benefit the population of more than 13 million for Shanghai city. In this study, we aimed at investigating the distribution of antibiotics and ARGs to characterize the pollution across various sites in Qingcaosha Reservoir in three seasons.Results Sulfamethoxazole, sulfamonomethoxine and penicillin G potassium salt were the dominant antibiotics and of high detection frequencies in this reservoir. Sulfonamide resistance genes ( sul1 and sul2 ) were the most prevalent and predominant genes. Higher total relative abundance of the ARGs were detected in the site closest to the inflow than those in other sites. Overall, the concentrations of antibiotics in May (spring) were relatively lower than November (autumn) and February (winter). Correlation analysis indicated sul1 , ermB and mphA had positive correlation with corresponding antibiotics in February and intI1 was also greatly positively correlated to sul1 , sul2 , ermB and mphA .Conclusion In conclusion, the antibiotics and ARGs were widespread in Qingcaosha Reservoir. Our result indicated that the drinking water reservoir might serve as gene reservoir for antibiotic resistance and mobile gene element intI1 can serve as a medium to contribute to the widespread of various ARGs. What is more, we considered that Reservoir could be served as a functional area contributing to the elimination of ARGs.


2020 ◽  
Vol 32 (1) ◽  
Author(s):  
Hanwei Ren ◽  
Rikard Tröger ◽  
Lutz Ahrens ◽  
Karin Wiberg ◽  
Daqiang Yin

2019 ◽  
Vol 182 ◽  
pp. 109390 ◽  
Author(s):  
Xiaoling Jin ◽  
Yan Liu ◽  
Xiaocui Qiao ◽  
Rui Guo ◽  
Chengyou Liu ◽  
...  

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