Spatiotemporal distribution of opportunistic pathogens and microbial community in centralized rural drinking water: One year survey in China
文献类型：期刊论文
| 作者 | Zhou, Qiaomei; Huang, Jingang; Guo, Kangyin; Lou, Yucheng; Wang, Haibo ; Zhou, Rongbing; Tang, Junhong; Hou, Pingzhi
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| 刊名 | ENVIRONMENTAL RESEARCH
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| 出版日期 | 2023 |
| 卷号 | 218页码:115045-1-10 |
| 关键词 | Rural area Central water supply Molecular approach Seasonal variation Bacterial community Infectious risk |
| ISSN号 | 0013-9351 |
| 英文摘要 | Centralized water supply in rural areas, supported by small waterworks (small-central mode) and by municipal water treatment plants (urban-extension mode), is an important guarantee to implement the Rural Revitalization Strategy Plan (2018-2022) in China. Opportunistic pathogens (OPs) could not be evaluated by the national drinking water sanitation standards in China (GB 5749-2022), posing potential microbial risks in rural drinking water. In this study, the spatiotemporal distribution of OPs, microbial community and the associated functional composition under two central water supply modes were investigated by molecular approaches. The results indicated that OPs were widely presented in the rural drinking water regardless of water supply modes, and were more abundant than those in the urban tap water. The insufficient residual chlorine and higher turbidity triggered more microbial proliferation, posing a seasonal variation of OPs gene copy numbers and bacterial community compositions. In warm seasons of summer and autumn, the gene copies of E. coli, M. avium, Pseudomonas spp. and the amoeba host Acanthamoeba spp. achieved up to 4.92, 3.94, 6.75 and 3.74 log10 (gene copies/mL), respectively. Potential functional prediction indicated higher relative abundance of pathogenic genes and infectious risks associated with the rural drinking water under small-central water supply mode. This one-year survey of the spatiotemporal distribution of OPs and microbial community provided scientific insights into microbial safety of rural drinking water, prompting attention on small-central water supply mode against OPs risks. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/48577]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 作者单位 | 1.Research Center for Eco-Environmental Sciences (RCEES) 2.Chinese Academy of Sciences 3.Hangzhou Dianzi University |
| 推荐引用方式 GB/T 7714 | Zhou, Qiaomei,Huang, Jingang,Guo, Kangyin,et al. Spatiotemporal distribution of opportunistic pathogens and microbial community in centralized rural drinking water: One year survey in China[J]. ENVIRONMENTAL RESEARCH,2023,218:115045-1-10. |
| APA | Zhou, Qiaomei.,Huang, Jingang.,Guo, Kangyin.,Lou, Yucheng.,Wang, Haibo.,...&Hou, Pingzhi.(2023).Spatiotemporal distribution of opportunistic pathogens and microbial community in centralized rural drinking water: One year survey in China.ENVIRONMENTAL RESEARCH,218,115045-1-10. |
| MLA | Zhou, Qiaomei,et al."Spatiotemporal distribution of opportunistic pathogens and microbial community in centralized rural drinking water: One year survey in China".ENVIRONMENTAL RESEARCH 218(2023):115045-1-10. |
入库方式： OAI收割
来源：生态环境研究中心
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