室内生物气溶胶
厚壁菌
放线菌门
微生物群
蛋白质细菌
生物
不动杆菌
莫拉克塞拉
细菌
空气质量指数
基因组
人口
生态学
地理
环境卫生
16S核糖体RNA
医学
遗传学
基因
作者
Paopit Siriarchawatana,Panyapon Pumkaeo,Piyanun Harnpicharnchai,Somsak Likhitrattanapisal,Sermsiri Mayteeworakoon,Worawongsin Boonsin,Xin Zhou,Junmin Liang,Lei Cai,Supawadee Ingsriswang
标识
DOI:10.1016/j.envres.2022.115065
摘要
With the growing numbers of the urban population, an increasing number of commuters have relied on subway systems for rapid transportation in daily life. Analyzing the temporal distribution of air microbiomes in subway environments is crucial for the assessment and monitoring of air quality in the subway system, especially with regard to public health. This study employed culture-independent metabarcode sequencing to analyze bacterial diversity and variations in bacterial compositions associated with bioaerosols collected from a subway station in Bangkok over a four-month period. The bacteria obtained were found to consist primarily of Proteobacteria, Firmicutes, and Actinobacteria, with variations at the family, genus, and species levels among samples obtained in different months. The vast majority of these bacteria are most likely derived from outside environments and human body sources. Many of the bacteria found in Bangkok subway station were also identified as "core microorganisms" of subway environments around the world, as suggested by the MetaSUB Consortium. The diversity of bacterial communities was shown to be influenced by several air quality variables, especially ambient temperature and the quantity of particulate matters, which showed positive correlations with several bacterial species such as Acinetobacter lwoffii, Staphylococcus spp., and Moraxella osloensis. In addition, metabolic profiles inferred from metabarcode-derived bacterial diversity showed significant variations across different sampling times and sites and can be used as a starting point to further explore the functional roles of specific groups of bacteria in the subway environment. This study thus introduced the information required for surveillance of microbiological impacts and their contributions to the well-being of subway commuters in Bangkok.
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