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Sökning: WFRF:(Weschler Charles J) > (2020-2024) > Ozone Initiates Hum...

Ozone Initiates Human-Derived Emission of Nanocluster Aerosols

Yang, Shen (författare)
Human-Oriented Built Environment Lab, School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015, Switzerland,Ecole Polytechnique Federale de Lausanne (EPFL),Swiss Federal Institute of Technology in Lausanne (EPFL)
Licina, Dusan (författare)
Human-Oriented Built Environment Lab, School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015, Switzerland,Ecole Polytechnique Federale de Lausanne (EPFL),Swiss Federal Institute of Technology in Lausanne (EPFL)
Weschler, Charles J. (författare)
International Centre for Indoor Environment and Energy, Department of Civil Engineering, Technical University of Denmark, Kongens Lyngby 2800, Denmark;Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, New Jersey 08854, United States,Danmarks Tekniske Universitet,Technical University of Denmark,Rutgers University
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Wang, Nijing (författare)
Max Planck Institute for Chemistry, Hahn-Meitner Weg 1, Mainz 55128, Germany,Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
Zannoni, Nora (författare)
Max Planck Institute for Chemistry, Hahn-Meitner Weg 1, Mainz 55128, Germany,Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
Li, Mengze (författare)
Max Planck Institute for Chemistry, Hahn-Meitner Weg 1, Mainz 55128, Germany,Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
Vanhanen, Joonas (författare)
Airmodus Limited, Erik Palménin Aukio 1, Helsinki FI-00560, Finland
Langer, Sarka (författare)
IVL Swedish Environmental Research Institute, Göteborg SE-400 14, Sweden;Department of Architecture and Civil Engineering, Division of Building Services Engineering, Chalmers University of Technology, Göteborg SE-412 96, Sweden,IVL Svenska Miljöinstitutet AB,Chalmers tekniska högskola,Chalmers University of Technology
Wargocki, Pawel (författare)
International Centre for Indoor Environment and Energy, Department of Civil Engineering, Technical University of Denmark, Kongens Lyngby 2800, Denmark,Danmarks Tekniske Universitet,Technical University of Denmark
Williams, Jonathan (författare)
Max Planck Institute for Chemistry, Hahn-Meitner Weg 1, Mainz 55128, Germany;Energy, Environment and Water Research Center, The Cyprus Institute, Nicosia 2121, Cyprus,Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG),Cyprus Institute
Bekö, Gabriel (författare)
International Centre for Indoor Environment and Energy, Department of Civil Engineering, Technical University of Denmark, Kongens Lyngby 2800, Denmark,Danmarks Tekniske Universitet,Technical University of Denmark
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 (creator_code:org_t)
2021-10-21
2021
Engelska.
Ingår i: Environmental Science and Technology. - : American Chemical Society (ACS). - 0013-936X .- 1520-5851. ; 55:21, s. 14536-14545
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https://doi.org/10.1...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • Nanocluster aerosols (NCAs, particles <3 nm) are important players in drivingclimate feedbacks and processes that impact human health. This study reports, for the first time, NCA formation when gas-phase ozone reacts with human surfaces. In an occupied climatecontrolledchamber, we detected NCA only when ozone was present.NCA emissions weredependent on clothing coverage, occupant age, air temperature, and humidity. Ozone-initiated chemistry with human skin lipids (particularly their primary surface reaction products) is thekey mechanism driving NCA emissions, as evidenced by positive correlations with squalene in human skin wipe samples and known gaseous products from ozonolysis of skin lipids. Oxidation by OH radicals, autoxidation reactions, and human-emitted NH3 may also play a role in NCA formation. Such chemical processesare anticipated to generate aerosols of the smallest size (1.18−1.55 nm), whereas larger clusters result from subsequent growth of the smaller aerosols. This study shows that whenever we encounter ozone indoors, where we spend most of our lives, NCAs will be produced in the air around us.

Ämnesord

NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
TEKNIK OCH TEKNOLOGIER  -- Kemiteknik -- Kemiska processer (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Chemical Engineering -- Chemical Process Engineering (hsv//eng)
MEDICIN OCH HÄLSOVETENSKAP  -- Medicinska och farmaceutiska grundvetenskaper -- Andra medicinska och farmaceutiska grundvetenskaper (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Basic Medicine -- Other Basic Medicine (hsv//eng)

Nyckelord

ozone chemistry
indoor air
human skin lipids
particle formation
molecular clusters
Klimat
Climate

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