Effects of haze pollution on microbial community changes and correlation with chemical components in atmospheric particulate matter

The Science of the Total Environment
Yujiao SunYong Wang

Abstract

In this study, particulate matter (PM) with aerodynamic diameters of ≤2.5 and ≤10 μm (PM2.5 and PM10, respectively), which was found at different concentrations in spring, was collected in Beijing. The chemical composition and bacterial community diversity of PM were determined, and the relationship between them was studied by 16S rRNA sequencing and mathematical statistics. Chemical composition analysis revealed greater relative percentages of total organic compounds (TOC) and secondary ions (NO3-, SO42-, and NH4+). The concentrations of Ca2+, Na+, Mg2+, K+ and SO42- increased in high-concentration PM, which was associated with the contribution of soil, dust and soot. Microbiological analysis revealed 1191 operational taxonomic units. Microbial community structure was stable at the phylum level. The most abundant phyla were Proteobacteria, Actinobacteria, Firmicutes, Bacteroidetes and Cyanobacteria. Community clustering analysis at the genus level showed that the difference in bacterial community structure between different PM concentrations (clean air vs. smog) was greater than that between different particle sizes. The dominant genera varied in different concentrations of PM. An unclassified genus of Cyanobacteria and Comamo...Continue Reading

Citations

Feb 16, 2020·International Journal of Environmental Research and Public Health·Jie LiShangwei Xu
Nov 17, 2020·The Science of the Total Environment·Wenyan BaiXuelin Zeng
Dec 6, 2020·The Science of the Total Environment·Hanlin ChenPengrui Du
Sep 22, 2018·Environmental Pollution·Zhengsheng XieYanpeng Li
Jul 22, 2021·International Journal of Chronic Obstructive Pulmonary Disease·Chunli CheYumin Zhou
Aug 18, 2021·Food Science & Nutrition·Xingjiang LiXuefeng Wu

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