First Nanoparticle Formation Results from Cyprus’ Troodos Observatory Published

Researchers from CARE-C of the Cyprus Institute’s Aerosol Formation Group have published the first study on nanoparticle formation observed at the Troodos Observatory, marking a milestone in atmospheric research for the Eastern Mediterranean and Middle East (EMME) region. The study is also the first publication of PhD candidate Ms. Neha Deot, who conducted the research under the supervision of Associate Professor Tuija Jokinen and Dr. Vijay Kanawade, as part of the ERC-funded project “The role of base molecules in aerosol formation (BAE).”

The study, conducted in 2022, presents concurrent nanoparticle measurements from two altitudes: the rural background site at Agia Marina Xyliatou (532 m a.m.s.l.) and the Troodos mountain site (1819 m a.m.s.l.). The research found that new particle formation (NPF) events occurred frequently at both locations, with comparable rates of 60% at the lower site and 54% at the mountain site. However, only half of these events occurred simultaneously at both sites, suggesting localised influences and complex vertical dynamics within the planetary boundary layer (PBL).

“Our results demonstrate the critical role of PBL dynamics in transporting precursor gases and aerosols from lower altitudes to the mountainous environment,” said Ms. Deot. “Understanding these processes is essential for improving climate models, particularly in regions like the EMME, which is highly vulnerable to climate change.”

The study highlights the significance of vertical mixing and up-valley winds in transporting newly formed particles, and possibly air pollutants, to higher altitudes, with particles growing more rapidly as they ascend. These findings provide valuable insights into secondary aerosol production and its impact on regional air quality and climate.

The research was supported by the European Research Council’s Starting Grant (ERC-2022-STG-BAE-Project: 101076311), the European Union’s Horizon 2020 Research and Innovation Programme, and the Cyprus Government.

For more information, contact:

Assoc. Prof. Tuija Jokinen, Climate and Atmosphere Research Center (CARE-C), the Cyprus Institute

Email: t.jokinen@cyi.ac.cy