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3rd GAW Expert Workshop on VOCs

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The 3rd GAW Expert Workshop on Volatile Organic Compounds will be organized on 29-30th June 2010

Helsinki, Finland.

The workshop is organized in support the Reactive Gases component of the Global Atmosphere Watch (GAW) programme. This will be the third workshop in a series which has already defined a programme of VOC measurements to be made in a global network recently announced in an article in EOS

Short summary of the meeting can be found here.

Meeting agenda

8:30- 9:00




Welcome/logistics Hannele Hakola, FMI


WMO welcome and agenda adaptation (meeting objectives) – WMO/GAW

L. Jalkanen


Introduction on VOC measurements programme in GAW (progress in implementation)

S. Penkett


GAW structures for QA: CCL, WCC, data quality objectives, measurement guidance O.Tarasova


GAW global VOC observations (presentation and comments)

C. Plass-Duelmer on behalf of D. Helmig


Coffee break  

VOC observations in the atmosphere

Chair: S.Penkett,  Rapporteur: A.Lewis


Inter-annual measurements of VOCs in the tropical maritime atmosphere

A. Lewis


VOC trends at Central European mountain stations C. Plass-Duelmer
11:00-11:15 VOC observations within the Swiss National Air Pollution Monitoring Network M. Steinbacher


Concentrations of NMHCs in the Arctic and Antarctic in summer 2008 H. Hellén


Studies on the use of PTR-MS to identify and quantify VOCs in background marine and rural air I. Galbally


PTR-MS measurementsof selected VOCsduringrecent aircraft campaigns in the tropics D. Oram
12:00-12:15 Determining ecosystem scale VOC emissions from vegetation using PTR-MS J. Rinne
12:15-13:30 Lunch  

Observations (aircraft and satellite) continued

Chair: S.Penkett,  Rapporteur: A.Lewis


Analysis of in-situ VOC data in a subtropical area close to the Gulf of Mexico B. Rappenglück


Composition and trends of NMHC in the UT/LS region observed by the CARIBIC aircraft A. Baker
14:00- 14:15 Seasonal variability of trace gases above the UK boundary layer J. Hopkins
14:15-14:30 Observation of CFC replacements during the 2008 Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) field campaign S. Meinardi
14:30-14:45 Something about Formaldehyde S. Penkett


Intercalibration of formaldehyde measurement techniques R. Steinbrecher


  • Compounds of interest
  • spatial gaps, network extension
  • measurements techniques implemented (in situ, remote)
  • problems with implementation of VOC observations
  • data submission
15:20-15:45 Coffee break  
Central Facilities : World Calibration Center

Chair: R.Steinbrecher, Rapporteur: B.Rappenglück

15:45-16:05 Quality and comparability of VOC-measurements in the GAW-VOC network R. Steinbrecher
16:05-16:20 EU Infrastructure Project ACTRIS in Support of the GAW-VOC programme in Europe C. Plass-Duelmer


  • new techniques
  • finalization of data quality objectives (using VIM3 terminology)
  • calibration procedures
  • audits/ comparison campaigns
  • standard procedures for VOCS including simple hydrocarbons and oxygenates.
  Close for the day  
Central Facilities: Central Calibration Laboratory
Chair: M. Milton, Rapporteur: J.Viallon
9:00-9:20 Progress at the CCQM-GAWG in the development of a CCL for VOCs M. Milton
9:20-9:40 VSL developments in VOC calibration standards for GAW R. Wessel
9:40-10:00 NIST Gas Standards Development Efforts for Hydrocarbons and Terpenes J. Rhoderick
10:00-10:20 Studies of stable standards for ambient monoterpenes A. Harling
10:20-10:40 The BIPM facility for dynamic generation of formaldehyde standards: progress towards an international scale for formaldehyde measurements J. Viallon
10:40-11:00 Development of DMS and acetonitrile standards in KRISS Gwi Suk Heo
11:00-11:20 Coffee break  


  • DQOs and available standards
  • need for new standards
  • scale
  • calibration challenges
  • standards and new measurement techniques
12:00-13:00 Lunch  
13:00-14:00 Rapporteur presentations (challenges, needs)  

Final remark and further planning “Where do we go from here?”

S. Penkett, R.Steinbrecher

14:40 Closing of the meeting H. Hakola/ L.Jalkanen







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