Aarhus University Seal

NOSA 2025

  • Department of Chemistry, Aarhus University, January 20-22, 2025

Meet our Keynote Speakers

NOSA 2025 are proud to present a lineup of internationally leading scientists as this years keynote speakers. 

Aerosol-Cloud Interactions in the Arctic

Paul Zieger
Associate Professor, Stockholm University


Paul Zieger is a renowned researcher in the field of physical and chemical properties of aerosols and clouds. He employs a wide array of measurement techniques to study aerosol optical properties, hygroscopicity, and aerosol-cloud interactions. Moreover, his research also focuses on ambient aerosols and clouds in the Arctic.



 

Global Scale Aerosol Processes & Impacts

Colette Heald
Professor, ETH Zürich


Colette Heald is an acclaimed researcher whose work focuses on the composition and chemistry of the global atmosphere. She combines in situ and satellite observations with global modeling. This approach allows her to study the complex interactions between air pollution, climate change, and ecosystem health. 




 

SOA Formation Chemistry

Mikael Ehn
Professor, University of Helsinki


Mikael Ehn is perhaps best known for discovering highly oxidized molecules in 2014. Since then, he has continued to study the formation of secondary organic aerosols through low volatile vapors. He primarily uses online mass spectrometric techniques both in atmospheric simulation chamber studies and ambient measurements for his research.




 

The Role of Biogenic Aerosol in the Atmosphere-Ecosystem Interactions

Annele Virtanen
Professor, University of Eastern Finland


Annele Virtanen is a specialist in atmospheric aerosols. Her research focuses on understanding how aerosols form, transform, and interact with clouds. She integrates laboratory and field measurements with theoretical models. This comprehensive approach enables her to study both natural and anthropogenic changes in aerosol dynamics. 
 

Meet our Tutorial Speakers

NOSA 2025 is proud to present Assistant Professor Sigurd Christiansen, University of Faroe Islands, and Sara Blichner, Stockholm University, as our two tutorial speakers. The tutorials focuses on introducing research fields to younger researchers. 

Marine Aerosols and Cloud Formation

Sigurd Christiansen
Assistant Professor, University of Faroe Islands


Sigurd Christiansen is an experimental researcher trying to bridge the fields of ocean and atmospheric sciences. His interdisciplinary work focuses on marine-derived aerosols, such as sea spray and dimethyl sulphide, and their roles in cloud formation (CCN) and ice-nucleating ability, utilizing various simulation chambers. Sigurd's tutorial will emphasize experimental techniques for characterizing aerosols and assessing their cloud-forming potential.


Modelling aerosols in the Earth system

Sara Blichner
Post doc, Stockholm University


Sara Blichner is a large-scale modeler focusing on improving the process representation of aerosols in climate models. She has expertise in model development and in studying the interactions between biogenic volatile organic compounds, aerosols, and clouds. Currently, her work focuses on developing process evaluation methods to increase model accuracy and enable more precise assessments of climate impacts. Her tutorial will cover why and how aerosols are represented in climate models, and how we can improve on it using new tools and evaluation techniques.

Symposium Topics

NOSA 2025 include all the research fields in which aerosols are relevant. 

Aerosol Technology

Nanoparticle Synthesis & Applications
Process Monitoring & Analysis
Combustion Aerosols
Transport Emissions
Electrical Effects
Filtration

Aerosols & Health

Health-Relevant Aerosols
Exposure & Health Studies
Bioavailability
Biological & Toxicological Responses
Epidemilogy
Bioaerosols & Allergens
Medical and Therapeutic Applications

Atmospheric Aerosols

Physico-Chemical Characterization
Sources & Source Apportionment
Remote Sensing
Formation & Aeging Processes
Aerosol-Cloud Interaction
Modelling & Climate Forcing

Aerosol Measurements & Instrumentation

New or Improved Methods & Instrumentation
Intercomparison Studies
Data Analysis & Interpretation
Legislation & Policy

Fundamental Aerosol Research

Formation, Transformation & Transport
Aerosol-Surface Interactions
Physical & Chemical Properties
Theory & Modelling

Abstract Submission

Late poster abstract submission is open until Friday the 1st of December, 2024.

Registration

Registration is now open

The registration deadline is 13th of December.

Contact

For questions related to the scientific and technical organization of the NOSA 2025 Symposium, please contact the NOSA 2025 Organising Committee.

Venue

The NOSA Symposium 2025 will take place at the Department of Chemistry, Aarhus University (Langelandsgade 140, 8000 Aarhus C, Denmark). 

For accommodation, we recommend a hotel downtown Aarhus. There is a frequent bus connection from downtown (Line 2A to Kaserneboulevarden) or a 30 minute walk.