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  • Title: Antibiotic Resistance Genes in drinking water of China: Occurrence, distribution and influencing factors.
    Author: Zhang K, Xin R, Zhao Z, Ma Y, Zhang Y, Niu Z.
    Journal: Ecotoxicol Environ Saf; 2020 Jan 30; 188():109837. PubMed ID: 31683044.
    Abstract:
    Drinking water samples were collected from 71 cities, including 28 provincial capital cities or municipalities, 20 prefecture cities and 23 counties, of 31 provincial-level administrative regions in China from July to August in 2017. Futhermore, 24 Antibiotic Resistance Genes (ARGs), 16S rRNA and 2 integrase genes were quantified by qPCR to investigate the pollution degree of ARGs. The results revealed that the 16S ranged from 105 - 108 copies/100 mL in the drinking water, and its treatment process could effectively remove bacteria. Moreover, sulfonamides-ARGs were the most prevalent ARGs in the drinking water of China, and the abundance of blaTEM ranked top five in all cities among the selected ARGs, indicating that the pollution condition of the genes should be aroused more attention. The data of qPCR and correlation analyses indicated that intI1 played a more crucial role than intI2 in the propagation of ARGs in the drinking water. Additionally, the pollution degree of ARGs among different city types showed no significant difference.
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