/tfmm3 EMEP Chemical Coordinating Centre Measurements of particulate matter in EMEP Current implementation Kjetil Tørseth, Wenche Aas, Michael Kahnert History Methodologies Feedback from the countries The EC/OC campaign Progress towards “Level 2” and “Level 3” Further needs

/tfmm3 EMEP Chemical Coordinating Centre Comparison of model estimates with observations

/tfmm3 EMEP Chemical Coordinating Centre Comparison of model estimates with observations

/tfmm3 EMEP Chemical Coordinating Centre Chemical composition of PM10 at Birkenes, S. Norway 1. Nov Oct 2001 (average conc. = 6.5 µg m -3 )

/tfmm3 EMEP Chemical Coordinating Centre 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

/tfmm3 EMEP Chemical Coordinating Centre Adopted strategy; 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

/tfmm3 EMEP Chemical Coordinating Centre Approx. 50 sites with PM10 measurements to be expected Many countries have not responded to the query

/tfmm3 EMEP Chemical Coordinating Centre

/tfmm3 EMEP Chemical Coordinating Centre Level 2 and Level 3 activities

/tfmm3 EMEP Chemical Coordinating Centre 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

/tfmm3 EMEP Chemical Coordinating Centre 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.