Diurnal Variations of Size-Resolved Bioaerosols During Autumn and Winter Over a Semi-Arid Megacity in Northwest China.

ABSTRACT: Bioaerosols have a major negative effect on air quality and on public health by causing the spread of diseases. This study evaluated the bioaerosol composition and variation in a semi-arid megacity of northwest China from October 2019 to January 2020 using an Andersen six-stage impactor sampler. The size distribution, diurnal variations of the concentrations of airborne bacteria, airborne fungi, and total airborne microbes (TAM) were investigated in autumn and winter. The mean concentrations of airborne bacteria, fungi, and TAM were 523.5 ± 301.1 colony-forming units (CFU)/m³, 1318.9 ± 447.8 CFU/m³, and (7.25 ± 1.90) × 10⁶ cells/m³, respectively, in autumn and 581 ± 305.4 CFU/m³, 1234.4 ± 519.9 CFU/m³, and (5.96 ± 1.65) × 10

SUBMITTER: Yang L 

PROVIDER: S-EPMC8137277 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature