Head and shoulders photograph of a woman standing in front of a leafy backdrop.

Lavinia Toso

University of Leicester


Supporting the Montreal Protocol: monitoring long-lived halogenated species with atmospheric nadir sounders


  • Dr Jeremy Harrison (National Centre for Earth Observation and University of Leicester)
  • Prof John Remedios (NCEO)
  • Prof Martyn Chipperfield (National Centre for Earth Observation and University of Leeds) 

PhD Summary

My project contributes to the monitoring of halogenated species (e.g., chlorofluorocarbons) using atmospheric sounders. These species release halogen atoms which catalyse stratospheric ozone depletion. This is a matter of utmost importance since the ozone layer shields the Earth from the Sun’s harmful radiation. As part of my project, I am responsible for producing atmospheric models to better quantify the impacts of halogenated species. My project directly aligns with the Montreal Protocol, making my research directly applicable to assessing results in the Scientific Assessment of Ozone Depletion. 

Previous activity

Before my PhD I completed my MSc degree in chemistry at the University of Milan – Bicocca (Milan, Italy) 

Why did you choose doctoral research?

During my research carried out at the University of Colorado – Boulder as part of my MSc degree, I conducted a research project on brominated species in the stratosphere. These compounds have been shown to significantly impact ozone depletion and are thus regulated under the Montreal Protocol. 

Only consequently, as I enjoyed this period of my studies the most, I wanted to continue my research in the atmospheric physics field broadly and deeply.    

Why did you choose CENTA?

The CENTA studentship interested me because of the unique opportunity for training in both scientific and non-scientific areas. This diverse approach will contribute to gaining personal enrichment as well as to developing transferable skills valuable for my future career.  

Future plans

My current future plans involve working as an atmospheric scientist for a governmental agency like EEA or NCAR, with a focus on monitoring trace gases in the atmosphere or developing enhancements for a sustainable future.