A new paper just published by members of BioBE is out now, and open access at Indoor Air journal. The study details air samples collected in classrooms at the University of Oregon, and the temporal changes that happen in indoor airborne microbial communities over the course of a week. We found that classrooms that were well ventilated very closely followed changes in the microbial communities outside of the building, but that rooms that were closed off at night and on weekends (the way buildings are often operated) retained a stagnant microbial community until the ventilation was opened up again. The paper also reports on human-associated microbes that are more commonly detected when people are in the room. This paper adds to our growing understanding of the sorts of microbes we encounter in our everyday lives in the built environment, as well as the architectural choices that drive their ecological patterns.

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