PHOENICS – EU project http://phoenics.chemistry.uoc.gr/organic_aerosol
Organic Aerosol Workshop
Best Western Hotel Villa Carlotta, Belgirate, Italy.
Sunday 21 (10:00)- Tuesday 23 (17:00) September 2003
PRELIMINARY AGENDA
Sunday 21/9/2003 (10:00-18:00)
10:00-10:15
Frank Dentener welcome - Mrs Carol Jackson practical information
10:15-10:30
Sandro Fuzzi - Announcement of the OA joint workshop by
IGAC/SOLAS/ELIPSE spring 2004 and other related IGAC activities Maria
10:30-11:00
Kanakidou & Frank Dentener (Introduction –The PHOENICS project Objectives of the workshop and how to achieve them)
11:00-11:30
Coffee break
Laboratory studies (rapporteurs; Ian Barnes, Jens Hjorth, Th. Hoffmann)
Major Questions to be discussed (shortly introduced by the rapporteurs)
 Secondary Organic Aerosol formation: Chemical formation mechanisms.
Lumping into categories
 Chemical reactivity and change in hygroscopicity of OA
 What do we know on physico-chemical/ thermodynamic properties of OA
species and of the complex organic –inorganic mixtures present in atmospheric
aerosol? (water activity coefficient, solubility etc.)?
Discussion presentations (20min + 5 min questions):
11:30-11:45
11:45-12:10
Ian Barnes : Aromatic hydrocarbon aerosol formation: some new endeavours
12:10-12:35
Thorsten Hoffmann Summary of OSOA results
12:35-14:30
Lunch break
14:30 -14:55
Borris Bonn et al. : Atmospheric SOA formation from biogenic
terpenes - laboratory nucleation thresholds and aerosol mass yields using
a global chemistry model
14:55-15:20
Luisa Marelli Photo-oxidation of VOC: Organic aerosol yields and their
hygroscopic properties.
15:20-15:45
Richard Winterhalter et al. Gas-particle partitioning of terpene-ozonolysis
products
15:45-16:00
Thomas Peter (only 1st day): Short review on organics and put this in
perspective with its own ice measurements
16:00-16:30
Coffee break
16:30-16:55
Erik Swietlicki Hygroscopic Growth, Critical Supersaturations and
Thermodynamic Modelling for Mixed Aerosol Particles of Inorganic and Organic
Compounds of Atmospheric Relevance
16:55-17:20
Johannes Schneider Organics aerosol measurements with the Aerodyne
Aerosol Mass Spectrometer (AMS): Results from field and lab studies.
17:20-18:00
General discussion- What do we urgently need to know and how can we
address the topics (contributors all participants)
Monday 22/9/2003 (9:30-18:00)
Field studies (rapporteurs: Rita van Dingenen, Spyros Pandis, Cristina Facchini)
9:30-9:45
Major Questions to be discussed (shortly introduced by the rapporteurs)

Phenomenology of organic aerosol (microscope picture/coating etc)

What do we learn on OA from single particle analysis/ state of mixing?

Chemical composition of OA sampling techniques (primary/secondary)

Heterogeneous reactions producing + modifying OA species and properties

Optical properties measurements
Discussion presentations (20min + 5 min questions):
9:45- 10:10
Euripides Stephanou: Field Studies: A useful tool for the elucidation of SOA
formation - Sampling and chemical characterization of OA: How well is done and
what do we learn from it?
10:10-10:35
Stefano Decesari, Organic functional groups analysis by Nuclear Magnetic
Resonance spectroscopy: An overview of the results on WSOC composition (coauthros M-C. Facchini, M. Mircea, F. Cavalli, S. Fuzzi, E. Tagliavini)
10:35-11:00
Christian Dye: Aerosol work within EMEP
11:00-11:30
Coffee break
11:30-11:55
M. Cristina Facchini: A new insight on organics in marine aerosol and
consequences on cloud micro physics and climate
11:55-12:20
Jean Philippe Putaud: Measurement techniques and aerosol mass closure
studies
12:20-12:40
short -general discussion- points to be raised after lunch
12:30-14:30
Lunch break
14:30-14:55
Claus Jørgen Nielsen: New results on the optical properties of different aerosol
constituents
14:55-15:20
M.O. Andreae: Biomass burning aerosols in SMOCC
15:20-16:00
General discussion - continues
16:00-16:30
Coffee break
16:30-16:45
Model studies - Introduction of the modelling session by the rapporteurs
(rapporteurs: Elisabetta Vignati, Barbara Ervens, Athanassios Nenes)
Major Questions to be discussed (shortly introduced by the rapporteurs)
 Chemical formation of OA and properties (lumping): how can we simplify
the system without missing critical information complex organic inorganic
mixtures for the different aerosol types (marine, urban, rural, etc)?
 Role of organics in nucleation in the atmosphere: How important is, when
and where, nucleation of organics is occurring?
 Optical properties of OA representation in models (lumping)
 Cloud processing of organic aerosols.
 Modelling on regional and global scales. Direct effect.
 Modelling on regional and global scales. Indirect effect
 The best way of comparing to measurements
Discussion presentations (20min + 5 min questions):
16:45-17:10
Spyros Pandis: field and modelling studies on organic aerosols (Secondary OC
using the EC tracer method, OC and EC measurement issues, Hygroscopic
properties of OC +, Results on Nucleation modelling. Source contributions to OC
in the Eastern US)
17:10-17:35
Hannele Korhonen: Formation of organic nucleation mode aerosols: initial steps
of the growth
17:35-18:00
Manuel Capouet, Jean Francois Muller: Modelling aerosol formation from the
degradation of alpha-pinene
Tuesday 23/9/2003 (9:30-17:00)
Model studies (rapporteurs: Elisabetta Vignati, Barbara Ervens, Athanassios Nenes) continue
Discussion presentations (20min + 5 min questions):
9:30-9:55
Kostas Tsigaridis: Challenges in global modelling of SOA
9:55-10:20
Barbara Ervens: Cloud processing of organic/ inorganic aerosols: Organic mass
production rates and implications for cloud physics
10:20-10:45
Hartmut Herrmann: Cloud processing of organic material: Lab studies and model
development
10:45-11:10
Susanne Jungen: The impact of the mixing state of organic-inorganic aerosol
mixtures on cloud microphysics and chemistry: a model study
11:10-11:40
Coffee break
11:30-11:55
Athanassios Nenes: The role of carbonaceous aerosol in aerosol-cloud
interactions
11:55-12:30
general discussion
12:30-14:00
Lunch break +Coffee
14:00-14:30
Emissions – primary particles
Zbigniew Klimont, Kaarle Kupiainen, Tami Bond: Modeling Emissions of
Carbonaceous Particles
EC/OC emission inventories, main uncertainties (to be addressed among others:
is primary OA mainly from combustion? what do we know for marine OA primary
aerosol? for biological particle emissions? and for other potential primary
emissions?)
14:30-14:50
Presentation of the session highlights (10 min per session)
14:50-15:00
Overall summary of the workshop (Frank Dentener, Maria Kanakidou)
15:00–15:15
15:15-16:15
Concluding remarks (John Seinfeld)
OPEN SEMINAR (S. Pandis)
16:30
DEPARTURE OF BUS TO THE AIRPORT