Occurrence of antibiotic resistance genes in landfill leachate treatment plant and its effluent-receiving soil and surface water
| Autor: | Jia-Yin Ling, Lu Huang, Xiao-Lin He, Yanbin Xu, Qingping Du, Xiao-Hua Zhang, Li Zheng |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Health
Toxicology and Mutagenesis 0208 environmental biotechnology 02 engineering and technology Wastewater 010501 environmental sciences Toxicology Integron 01 natural sciences beta-Lactamases Integrons Soil Bacterial Proteins Metals Heavy Leachate Effluent Soil Microbiology 0105 earth and related environmental sciences Bacteria biology Ecology Treatment process Water Drug Resistance Microbial Heavy metals General Medicine Pollution Anti-Bacterial Agents 020801 environmental engineering Environmental chemistry biology.protein Environmental science Sewage treatment Surface water Water Pollutants Chemical Antibiotic resistance genes |
| Zdroj: | Environmental Pollution. 218:1255-1261 |
| ISSN: | 0269-7491 |
| Popis: | The antibiotic resistance genes (ARGs) from urban waste may spread to the environment with the discharge of leachate. Fifteen types of ARGs, including tetracycline, sulfonamides, AmpC β-lactamase and the class 1 integron gene were detected in the samples from the largest leachate treatment plant (LTP) in Guangzhou and its effluent receiving bodies (soil and surface water). The results showed that ARGs in leachates were in high levels and varied with seasons. The abundance of ARGs in the influent from high to low was in the turn of summer, winter, spring. About 2 to 4 orders of magnitude of ARGs were eliminated by the whole leachate treatment process. The predominant ARGs in the receiving soil were intI1, tetB, sul2, tetA and tetX, while those in the receiving surface water were sul2, intI1 and sul1, and the concentrations of ARGs in the receiving bodies were higher than those in the other natural bodies by 1 to 2 orders of magnitude. In addition, the results of bivariate correlation analysis showed that the abundances of ARGs (tetC, tetW, sul1, sul2, intI1 and FOX) were in significant correlation with the concentrations of heavy metals (Cu, Zn, Ni and Cr) (p < 0.05). LTPs are more likely to be sources of ARGs than wastewater treatment plant (WWTP) and need to be focused on. |
| Databáze: | OpenAIRE |
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