Aller au contenu principal
  • Paul Scherrer Institut PSI
  • PSI Research, Labs & User Services

Digital User Office

  • Digital User Office
  • DE
  • EN
  • FR
Paul Scherrer Institut (PSI)
Rechercher
Paul Scherrer Institut (PSI)

Hauptnavigation

  • Research at PSIOuvrir ce point de menu principal
    • Research Initiatives
    • Ethics and Research integrity
    • Scientific Highlights
    • Scientific Events
    • Scientific Career
    • PSI-FELLOW
    • PSI Data Policy
  • Research Divisions and LabsOuvrir ce point de menu principal
    • Overview
    • Research with Neutrons and Muons
    • Photon Science
    • Energy and Environment
    • Nuclear Energy and Safety
    • Biology and Chemistry
    • Scientific Computing, Theory and Data
    • Large Research Facilities
  • Facilities and InstrumentsOuvrir ce point de menu principal
    • Overview
    • Large Research Facilities
    • Facilities
    • PSI Facility Newsletter
  • PSI User ServicesOuvrir ce point de menu principal
    • User Office
    • Methods at the PSI User Facilities
    • Proposals for beam time
    • Proposal Deadlines
    • Data Analysis Service (PSD)
    • EU support programmes
  • New ProjectsOuvrir ce point de menu principal
    • SLS 2.0
    • IMPACT
  • DE
  • EN
  • FR

Digital User Office (mobile)

  • Digital User Office

Vous êtes ici:

  1. PSI Home
  2. Labs & User Services
  3. ENE
  4. LAC
  5. Research Facilities
  6. Mobile Smog Chamber

Navigation secondaire

Laboratory of Atmospheric Chemistry (LAC)

  • People
    • Alumni
  • Research Groups
    • Organisational Structure
    • Gasphase and Aerosol Chemistry
    • Aerosol Physics
    • Environmental Molecular Science
    • Aerosol and Health
    • Surface Chemistry Research Group
  • Research Facilities Sous-menu élargi
    • Smog Chambers
    • Mobile Smog Chamber
    • CLOUD Chamber
    • Jungfraujoch Site
    • Mobile Laboratory
    • Air Quality Models
  • Projects
    • ACTRIS
    • APPROPRIATE
    • BISAR
    • GAW Aerosol Monitoring at JFJ
    • Archive
  • Teaching and Seminars
  • News & Highlights
  • Publications
  • Work with us

Info message

Ce contenu n'est pas disponible en français.

Mobile Smog Chamber

The mobile chamber can be mounted on a trailer for transport and for sampling ambient air.
The mobile chamber can be mounted on a trailer for transport and for sampling ambient air.

Overview

The traditional smog chamber is only as useful as the instruments to which it is connected. Furthermore ambient sampling is limited to the immediate locality. The mobile smog chamber has been constructed to overcome these limitations: we take the smog chamber to the emissions. Specific projects and questions addressed so far and at present include:
  • Secondary Aerosol Formation (S-Feinstaub): Quantification and characterization of primary emissions and secondary aerosol formation from road vehicles at the European Union Joint Research Center (JRC), Italy
  • Investigation of aerosol generated from cooking processes
Projects where the mobile smog chamber was deployed:
  • Further work on road vehicles at JRC
  • Investigation of emissions from other fossil fuel combustion sources e.g. farming vehicles, hand held tools, wood burning, ship emissions
  • Aerosol nucleation studies with ambient, e.g. forest, air
Using the mobile smog chamber to investigate primary aerosol emissions and secondary aerosol formation from a gasoline car at the European Union Joint Research Centre (JRC) Vehicle Emissions Laboratory, 2011.
Using the mobile smog chamber to investigate primary aerosol emissions and secondary aerosol formation from a gasoline car at the European Union Joint Research Centre (JRC) Vehicle Emissions Laboratory, 2011.

Technical Description

The mobile chamber is constructed with flexibility in mind. It consists of 9m3 Teflon bag hung on an aluminum frame together with a battery of 40 100W UV lights (Ergoline, Cleo Performance solarium lamps). Connected to the chamber is a separable control unit consisting of a pure air generation system (737-250 series, AADCO Instruments, Inc., USA) and inlet lines for gaseous components (NO, NO2, O3, H2O, organic compounds). All of these units may be mounted on a trailer for transport or ambient studies, or dismounted and deployed in various configurations.

Relative humidity in the mobile chamber can be adjusted rapidly and accurately to anywhere between 0-90%. When operated independently of the transport trailer, the temperature is determined by the capabilities of the host facility; experiments have so far been conducted in the range -7 to 25 °C.

Injection of aerosol into the smog chamber is powered by a heated ejector dilutor (Dekati Ltd, Tampere, Florida) and sampling lines. Again, flexibility is important and the heated inlet lines are built up of a number of individual heated segments allowing operation of the smog chamber at different distances to the emissions source.

The core instrumentation for aerosol characterization includes the aerosol mass spectrometer (AMS), the aethalometer and the multi-angle absorption spectrometer (MAAP). For measurements of CO, CH4, CO2 and H2O we use the Picarro G2401 cavity ring-down spectrometer. The total hydrocarbon is measured with the HORIBA APHA 370 total hydrocarbon analyzer. Additional state of the art instruments may be available at host facilities.

Media Release

PSI Media Release

Media Echos (various languages)

  • SRF Tagesschau
  • Tagesschau movie
  • NZZ
  • Spektrum.de
  • Blick
  • Le Temps
  • Süddeutsche Zeitung
  • yle.fi, Finland
... and many more worldwide

Publications

Two-stroke scooters are a dominant source of air pollution in many cities
Stephen M. Platt et al, Nature Communications, 13 May 2014
doi: 10.1038/ncomms4749 Link to Article

Secondary organic aerosol formation from gasoline vehicle emissions in a new mobile environmental reaction chamber
Stephen M. Platt et al, Atmospheric Chemistry and Physics, 13, 9141-9158, 2013
doi:10.5194/acp-13-9141-2013 Article

Effects of alkylate fuel on exhaust emissions and secondary aerosol formation of a 2-stroke and a 4-stroke scooter
Alessandro Zardini et al, Atmospheric Environment, 94, 307-315, 2014
doi: 10.1016/j.atmosenv.2014.03.024 Link to Article

Sidebar

Contact

Laboratory of Atmospheric Chemistry
Forschungsstrasse 111
5232 Villigen PSI
Switzerland
 


Mohr Claudia


Laboratory Head LAC
Claudia Mohr
Telephone: +41 56 310 54 77
E-mail: claudia.mohr@psi.ch

 


Indlekofer Claudia


Assistant
Claudia Indlekofer
Telephone: +41 56 310 25 22
E-mail: claudia.indlekofer@psi.ch

top

Pied de page

Paul Scherrer Institut

Forschungsstrasse 111
5232 Villigen PSI
Suisse

Téléphone: +41 56 310 21 11
Téléfax: +41 56 310 21 99

Comment nous trouver 
Contact

Centre de visiteurs psi forum
Laboratoire élèves iLab (en allemand)
Centre de protonthérapie
Centre de Formation du PSI
PSI Guest House (en anglais)
PSI Gastronomie (en allemand)
psi forum shop

Service & Support

  • Annuaire
  • User Office
  • Accelerator Status
  • Publications du PSI
  • Fournisseurs
  • E-facture
  • Computing (en anglais)
  • Sicherheit (en allemand)

Carrière

  • Travailler au PSI
  • Offres d'emploi
  • Formation initiale et formation continue
  • Career Center
  • Formation professionnelle (en allemand)
  • Centre de Formation du PSI

Pour les médias

  • Le PSI en bref
  • Chiffres et faits
  • Le coin médias
  • Communiqués de presse
  • Réseaux sociaux

Suivez le PSI: Twitter (in English) LinkedIn Youtube Facebook Instagram Issuu RSS

Footer legal

  • Impressum
  • Conditions d'utilisation
  • Login éditeurs