The Quadrennial Ozone Symposium Organizing Committee is pleased to announce the dates and location of QOS 2024. The meeting will be held in-person in Boulder, Colorado, USA from 15-19 July 2024, and hosted by the University of Colorado Boulder with a hybrid virtual option. We are excited to follow in the footsteps of a wonderful QOS 2021 graciously hosted online by Yonsei University, Korea.


Zoom registration information coming soon


REGISTER NOW for the Community Scoping Workshop

We will host a Community Scoping Workshop on March 26, 2024 (8:30-11:00 UTC or 14:30-17:00 UTC) where we would love your input. Participate and provide your input on what Allin Wayra should be doing in the coming years and network with colleagues also working with or interested in small sensors. The workshop will be carried out twice to facilitate participation in different time zones. 


Katerina Sindelarova is a researcher at the Department of Atmospheric Physics at Charles University in Prague studying volatile organic compounds from biogenic sources (BVOCs). Her main research interests are modelling BVOC emissions from vegetation, influence of input parameters on emissions, comparison of different modelling approaches and impact of BVOCs on local and global atmospheric chemistry. She is a member of the Scientific Steering Committee of GEIA (Global Emission InitiAtive).  




Triennial gathering of fog and dew researchers from around the world, to be held July 23-28, 2023 on the campus of Colorado State University in Fort Collins, Colorado, USA.


Simone Andersen is a postdoctoral researcher at the Max Planck Institute for Chemistry (MPIC), where she studies the chemistry of organic nitrates using a combination of field measurements from ground and aircraft campaigns in France, Brazil, and Finland, and laboratory experiments in a simulation chamber.



Karn Vohra is a postdoctoral research fellow at University College London (UCL) focusing on the health effects of exposure to air pollution from the oil and gas lifecycle in the US. Karn obtained his PhD in Environmental Health and Risk Management from the University of Birmingham in 2021, funded by the University’s Global Challenges Studentship.