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Principal Coordinates Analysis of air samples collected from eight WWTPs. The PCoA was calculated using the weighted UniFrac distance metric. Figure 3a represents the samples colored according to the treatment site (screening in purple rectangles, degritting/degreasing in orange rectangles, biofiltration in red circles, primary settling in green rectangles). Figure 3b represents samples colored according to the sampling season (winter in blue circles and summer in red squares). The ellipsoid areas indicate the most obvious sample clustering

Principal Coordinates Analysis of air samples collected from eight WWTPs. The PCoA was calculated using the weighted UniFrac distance metric. Figure 3a represents the samples colored according to the treatment site (screening in purple rectangles, degritting/degreasing in orange rectangles, biofiltration in red circles, primary settling in green rectangles). Figure 3b represents samples colored according to the sampling season (winter in blue circles and summer in red squares). The ellipsoid areas indicate the most obvious sample clustering

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Wastewater treatment is one of the major biotechnological processes used to treat municipal and industrial sewage. All the steps involved in the removal of contaminants from wastewaters to treat municipal and industrial sewage represent a reservoir of a dynamic microbial communities with specific key players in the different process types. Aerosoli...

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... Studies on air microbiomes in terms of their community composition as well as their impacts on human health have been conducted across environments such as indoor environments (Mbareche et al., 2022), hospitals (Stockwell et al., 2019), and outdoor environments (Yang et al., 2022). With the increasing numbers of people living in urban areas (United Nations, 2018), public transportation networks such as trains, buses, and subways are a regular point of interaction interface for billions of people, allowing exchanging of microorganisms with each other, as well as with transit surfaces and air. ...
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