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Indoor Airborne Microbiome and Endotoxin : Meteorological Events and Occupant Characteristics Are Important Determinants

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اقرأ أكثر حفظ في قائمتي
  • معلومة اضافية
    • Contributors:
      Faculty of Medicine; Internal Medicine and Emergency Services
    • الموضوع:
      2023
    • Collection:
      Opin vísindi (Iceland)
    • نبذة مختصرة :
      Funding Information: This project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement no. 804199). K.F. acknowledges support by the Novo Nordisk Foundation (grant NNF19OC0056963), and T.Š.-T. acknowledges support by the Independent Research Fund Denmark (9145-00001B) and the Villum Fonden (research grants 23175 and 37435). Publisher Copyright: © 2023 The Authors. Published by American Chemical Society. ; Airborne bacteria and endotoxin may affect asthma and allergies. However, there is limited understanding of the environmental determinants that influence them. This study investigated the airborne microbiomes in the homes of 1038 participants from five cities in Northern Europe: Aarhus, Bergen, Reykjavik, Tartu, and Uppsala. Airborne dust particles were sampled with electrostatic dust fall collectors (EDCs) from the participants' bedrooms. The dust washed from the EDCs' clothes was used to extract DNA and endotoxin. The DNA extracts were used for quantitative polymerase chain (qPCR) measurement and 16S rRNA gene sequencing, while endotoxin was measured using the kinetic chromogenic limulus amoebocyte lysate (LAL) assay. The results showed that households in Tartu and Aarhus had a higher bacterial load and diversity than those in Bergen and Reykjavik, possibly due to elevated concentrations of outdoor bacterial taxa associated with low precipitation and high wind speeds. Bergen-Tartu had the highest difference (ANOSIM R = 0.203) in β diversity. Multivariate regression models showed that α diversity indices and bacterial and endotoxin loads were positively associated with the occupants' age, number of occupants, cleaning frequency, presence of dogs, and age of the house. Further studies are needed to understand how meteorological factors influence the indoor bacterial community in light of climate change. ; Peer reviewed
    • File Description:
      11750-11766
    • ISSN:
      0013-936X
    • Relation:
      Environmental Science & Technology; 57(32); http://www.scopus.com/inward/record.url?scp=85167815288&partnerID=8YFLogxK; Amin , H , Šantl-Temkiv , T , Cramer , C , Finster , K , Real , F G , Gíslason , Þ , Holm , M , Janson , C , Jögi , N O , Jogi , R , Malinovschi , A , Marshall , I P G , Modig , L , Norbäck , D , Shigdel , R , Sigsgaard , T , Svanes , C , Þórarinsdóttir , H R , Wouters , I M , Schlünssen , V & Bertelsen , R J 2023 , ' Indoor Airborne Microbiome and Endotoxin : Meteorological Events and Occupant Characteristics Are Important Determinants ' , Environmental Science & Technology , vol. 57 , no. 32 , pp. 11750-11766 . https://doi.org/10.1021/acs.est.3c01616; 174163596; 2905d5f4-380b-418b-b5df-6ce1b23904c6; unpaywall: 10.1021/acs.est.3c01616; 85167815288; https://hdl.handle.net/20.500.11815/4423
    • الرقم المعرف:
      10.1021/acs.est.3c01616
    • Rights:
      info:eu-repo/semantics/openAccess
    • الرقم المعرف:
      edsbas.DFF76A4B