The 23rd Air Ions, Clusters and Atmospheric Aerosols Workshop (with original name the Finnish-Estonian Air Ion and Aerosol Workshop) will be held 11.-12.6.2019 in Cultural Center Sofia, Helsinki, Finland. 

The workshop brings together researchers working with atmospheric clusters and ions and particularly the users of ion and mass spectrometers and particle counters. It also provides a forum for knowledge exchange on trace gases, clusters and nanoparticles. The goals of the workshop include development of theory and measurements techniques, user recommendations on instrument operation, calibrations and maintenance, scientific discussions on user selected topics and future experiments.


Atmospheric measurements of nano-clusters

Atmospheric measurements of air ions

Laboratory experiments on new particle formation

Organic ions


Neutral cluster and Air Ion Spectrometer user meeting


More information from Rima Baalbaki ( and Juha Kangasluoma (