Expiratory aerosol pH is determined by indoor room trace gases and particle size

Affiliations

• ¹ Institute for Atmospheric and Climate Science, ETH Zurich, Zurich 8092, Switzerland.
• ² Environmental Chemistry Laboratory, School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015, Switzerland.
• ³ Institute of Medical Virology, University of Zurich, Zurich 8057, Switzerland.
• ⁴ Laboratory of Atmospheric Processes and their Impacts, School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015, Switzerland.
• ⁵ Institute of Chemical Engineering Sciences, Foundation for Research and Technology Hellas, Patras 26504, Greece.