Vol. 35, issue 06, article # 5

Abstract:

Microorganisms of atmospheric aerosols sampled at four stationary points with different anthropogenic load in Novosibirsk in the period from September 2020 to December 2021 are studied. Atmospheric aerosols were monthly sampled by atmospheric air filtration at reinforced Teflon membranes Sartorius for 12 h, with a two week lags. Under those sampling conditions, spore-forming bacteria of the genus Bacillus and cocci of the genera Staphylococcus and Micrococcus predominated among the cultured bacteria in winter. In the spring-summer and autumn samples of atmospheric aerosols, the concentrations and diversity of coccal forms, spore-forming and non-spore-forming bacteria, actinomycetes, and fungi sharply increased. We have identified a significant number of hemolytic spore-forming bacteria and staphylococci, which are multi-resistant to antibiotics and have enzymes contributing to infectious process development.

Keywords:

atmospheric bioaerosols, microorganisms, Novosibirsk, seasonal dependence, concentration, composition, enzymatic properties, pathogenic properties

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