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Condensational growth and surface reactivity of mixed inorganic / organic aerosols

Objective

Secondary troposphere aerosols are often aqueous mixtures of inorganic salts and organic components. In the CASOMIO project we will investigate the importance of oxidized hydrocarbons in such mixed aerosols for new particle formation and particle growth and for the surface reactions of nitrogen oxides. This will be achieved by combining kinetic flow tube measurements, studies in large aerosol chamber with on-line composition analysis of the particulate phase and thermodynamic and theoretical modelling. We will determine the role organic coatings and large organic solute fractions for heterogeneous NOX removal from the troposphere. By aerosol dynamic model calculations the atmospheric significance of organic vapours for the formation of secondary aerosols will be investigated.

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

FORSCHUNGSZENTRUM JUELICH GMBH
Address
Leo-brandt-strasse
52425 Juelich
Germany

Participants (3)

ENERGY RESEARCH CENTRE OF THE NETHERLANDS
Netherlands
Address
Westerduinweg 3
1755 ZG Petten
UNIVERSITY OF HELSINKI
Finland
Address
Siltavuorenpenger 20 D
00014 Helsinki
University of Cambridge
United Kingdom
Address
Lensfield Road
CB2 1EW Cambridge