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History Methodologies Feedback from the countries The EC/OC campaign

History Methodologies Feedback from the countries The EC/OC campaign Progress towards “Level 2” and “Level 3” Further needs. Measurements of particulate matter in EMEP Current implementation Kjetil Tørseth, Wenche Aas, Michael Kahnert. Comparison of model estimates with observations.

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History Methodologies Feedback from the countries The EC/OC campaign

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  1. History Methodologies Feedback from the countries The EC/OC campaign Progress towards “Level 2” and “Level 3” Further needs Measurements of particulate matter in EMEPCurrent implementationKjetil Tørseth, Wenche Aas, Michael Kahnert

  2. Comparison of model estimates with observations

  3. Comparison of model estimates with observations

  4. Chemical composition of PM10 at Birkenes, S. Norway 1. Nov. 2000 - 31. Oct 2001 (average conc. = 6.5 µg m-3)

  5. Requirements to the measurement programme • Representative rural sites • Standard methodologies • In addition special requirements; • Chemical mass closure • full characterisation of inorganic compounds • EC/OC determination • Improved OC characterisation • Chemical speciation as function of size • Physical characterisation • number size distribution • surface area distribution

  6. Level 1 (all sites) PM10 to be measured at least at one station in each country EC/OC determination for one sample each week for a number of sites at a common laboratory Base cations and sea-salt to be measured at the same sites as above Level 2 (~10 sites) Denuder measurements (N-compounds) Mineral dust Chemical speciation as function of particle size Level 3 (research activities) OC-characterisation Number and Area size distribution Light scattering, AOD etc. cooperation with ongoing research activities Adopted strategy;

  7. Approx. 50 sites with PM10 measurements to be expected Many countries have not responded to the query

  8. Level 2 and Level 3 activities

  9. Progress with respect to level 2 and 3 activities • Cooperation with WMO GAW on the selection of “supersites” for PM • Useful data also available from some of the regional sites • There is an interest to provide data • but challenges remain • Cooperation with EC-JRC-AEROSOL “ European Aerosol Database” • Nordic Council of Ministers project (PM-Nordic) • Ongoing projects under EC-DG RES- FP5 • Applications for FP5 (GMES) and FP6

  10. Further needs • Still more level 2/3 activities required • QA/QC procedures and activities • Further developments for speciation of carbonaceous matter • Importance of artefacts • CTM-development and validation • Linking of scales In addition large gaps exist in other fields e.g. emissions, cost-curves etc.

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