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MICROSCOPE SIGNED

Molecular dIffusion of organiCs in secondaRy Organic aeroSols and impaCts On Particle chEmistry

Total Cost €

0

EC-Contrib. €

0

Partnership

0

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 MICROSCOPE project word cloud

Explore the words cloud of the MICROSCOPE project. It provides you a very rough idea of what is the project "MICROSCOPE" about.

temperature    impacts    rectangular    estimate    tube    class    experimental    soa    atmospheric    groups    particle    molecular    despite    expertise    output    temperatures    instrumentation    molecules    cloud    aw    water    degradation    fluorescence    verify    mixing    models    derive    mass    peroxides    laboratory    recovery    simultaneous    reached    microscopy    resolution    particles    rates    samples    secondary    small    north    diffusivity    reactivity    controls    cell    climate    combination    combining    predictions    scientific    innovative    size    area    coefficients    times    measuring    of    aerosol    photobleaching    relate    situ    parametrization    determined    diffusion    composition    america    ones    training    microscope    function    air    facilities    tropospheric    quality    action    dependent    model    chemical    goals    chemistry    organics    spectrometry    largely    parametrizations    organic    missing    ray    flow    experiments    lt    290   

Project "MICROSCOPE" data sheet

The following table provides information about the project.

Coordinator
PAUL SCHERRER INSTITUT 

Organization address
address: FORSCHUNGSTRASSE 111
city: VILLIGEN PSI
postcode: 5232
website: www.psi.ch

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Switzerland [CH]
 Total cost 247˙606 €
 EC max contribution 247˙606 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2019
 Funding Scheme MSCA-IF-GF
 Starting year 2020
 Duration (year-month-day) from 2020-08-01   to  2023-07-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    PAUL SCHERRER INSTITUT CH (VILLIGEN PSI) coordinator 247˙606.00
2    UNIVERSITY OF BRITISH COLUMBIA CA (VANCOUVER) partner 0.00

Map

 Project objective

Molecular diffusion of organics within secondary organic aerosol (SOA), a main class of tropospheric particles, controls predictions of particle mass, size, mixing state, and cloud formation properties, thus SOA’s role for air quality, atmospheric chemistry and climate. Despite that, measurements of diffusion coefficients of organics in SOA at low, tropospheric relevant temperatures (T) are largely missing. The objectives of MICROSCOPE are to directly measure diffusion coefficients of organic molecules in SOA particles at T < 290 K, improve parametrizations used to estimate diffusion, test predictions of diffusivity in atmospheric models and assess the impacts on particle chemistry, by the combination of development of innovative instrumentation, experimental and modelling work. Measuring diffusion coefficients as a function of water activity (aw) and temperature, will be achieved by developing a new flow cell with simultaneous and in-situ T and aw-control for rectangular area fluorescence recovery after photobleaching measurements. The chemical composition of the SOA samples will be determined using high-resolution mass spectrometry, with the goal to improve existing parametrizations used to estimate the diffusion of organics in SOA and derive new ones that directly relate chemical composition to diffusion coefficients. The new T and aw-dependent parametrization will be used along with model output to verify if tropospheric mixing times of organics in SOA particles are < 1 h. Finally, the impact of diffusion of organics on SOA particle reactivity and chemistry will be determined through measuring the degradation rates of peroxides within SOA particles, using aerosol flow tube and X-ray microscopy experiments. By combining the expertise of two research groups in North America and Europe, state-of-the-art laboratory facilities, and small and large-scale instrumentation, both the scientific as well as the training goals of this action will be reached.

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The information about "MICROSCOPE" are provided by the European Opendata Portal: CORDIS opendata.

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