2016
DOI: 10.1111/ina.12347
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High temporal variability in airborne bacterial diversity and abundance inside single‐family residences

Abstract: Our homes are microbial habitats, and although the amounts and types of bacteria in indoor air have been shown to vary substantially across residences, temporal variability within homes has rarely been characterized. Here, we sought to quantify the temporal variability in the amounts and types of airborne bacteria in homes, and what factors drive this variability. We collected filter samples of indoor and outdoor air in 15 homes over 1 year (approximately eight time points per home, two per season), and we use… Show more

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Cited by 28 publications
(31 citation statements)
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“…The median concentration of airborne total bacteria observed in this study (range of 26.5‐309 000 CE/m 3 with a median of 3770 CE/m 3 , detailed data are available in Table S3) is about one order of magnitude larger than the value reported for 15 homes in Boulder, CO, USA (range of 3‐4131 GCN/m 3 with a median of about 350 GCN/m 3 ) . The median concentration of airborne total bacteria found in the present work was found to be comparable to those in Hospodsky et al, where they analyzed airborne PM 10 samples from ventilation duct supply air in a small university classroom over a sampling period of 7 days.…”
Section: Resultssupporting
confidence: 72%
See 1 more Smart Citation
“…The median concentration of airborne total bacteria observed in this study (range of 26.5‐309 000 CE/m 3 with a median of 3770 CE/m 3 , detailed data are available in Table S3) is about one order of magnitude larger than the value reported for 15 homes in Boulder, CO, USA (range of 3‐4131 GCN/m 3 with a median of about 350 GCN/m 3 ) . The median concentration of airborne total bacteria found in the present work was found to be comparable to those in Hospodsky et al, where they analyzed airborne PM 10 samples from ventilation duct supply air in a small university classroom over a sampling period of 7 days.…”
Section: Resultssupporting
confidence: 72%
“…The median concentration of airborne total bacteria observed in this study (range of 26.5-309 000 CE/m 3 with a median of 3770 CE/m 3 , detailed data are available in Table S3) is about one order of magnitude larger than the value reported for 15 homes in Boulder, CO, USA (range of 3-4131 GCN/m 3 with a median of about 350 GCN/m 3 ). 48 The median concentration of airborne total bacteria found in the present work was found to be comparable to those in Hospodsky et al, 49 where they analyzed airborne PM 10 The airborne concentrations of total fungi were about two orders of magnitude smaller than those for total bacteria in the homes. which analyzed airborne particles for 3-4 consecutive days at an elementary school in the suburb of Salinas, California, USA, for both vacant (7800 SE/m 3 ) and occupied conditions (51 000 SE/m 3 ).…”
Section: Concentrations Of Airborne Particle-bound Contaminantssupporting
confidence: 86%
“…Bacteria concentrations in indoor air were lower than in outdoor air under both weather conditions. Similar findings have been reported (Shelton et al, 2002;Emerson et al, 2017). In addition, results suggested that in polluted weather, most bacteria collected outdoor and indoor are likely to influence the secondary bronchi and terminal bronchi, respectively, indicating that people who remain inside during polluted weather may still be at risk of bacterial infection, particularly of the lower respiratory tract.…”
Section: Discussionsupporting
confidence: 84%
“…The majority of interest in microbiology of the built environment has focused on microbially-mediated building deterioration or detriment to occupant health from specific microorganisms of interest. Despite advances in awareness of the potential for microbial exposure indoors [33], microorganisms in the built environment are still considered as debris to be removed, instead of members of a microbial ecosystem which is inexorably linked to the influences of building inhabitants [29,31,[34][35][36][37]. Given the propensity for microbial biofilms or overgrowth to pose a threat to the health of occupants, it is not difficult to understand why.…”
Section: From Fear To Reluctant Acceptance Of the Microbial Worldmentioning
confidence: 99%