Information on AQUILA activities an update

Transcription

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2 Information on AQUILA activities an update 9 th CAFE SG Meeting, May 2004 Marina Froehlich Folie 2

3 AQUILA AQUILA: Network of Air Quality Reference Laboratories Founded in December 2001 Meanwhile... 4 th meeting in January 2004 next meeting October Folie 3

4 3 rd meeting January 2003-Agenda Focal Point for CEN/TC 264 in the field of Air Quality Monitoring Status report by convenors or members of the WGs WG 12 on SO 2, O 3, NO x, CO WG 13 on benzene, WG 14 As, Cd, Pb, Ni in PM10 WG 15 PM2.5 WG 21 B[a]P Information on EC WG on Equivalence EUROMET/BIPM activities at ambient levels: O 3, SO 2 and NO Information on EC activities: 4 th Daughter Directive, PM Position Paper Discussion on contents of QA/QC Conference in Prague, May 2003 (co-organized by AQUILA) Folie 4

5 4 th meeting January 2004-Agenda Information on EC activities: 4 th Daughter Directive, PM Position Paper, EC WG on Equivalence Review Report of 1 st Daughter Directive New representative of DG ENV: Andrej Kobe Focal point: Particles Presentations on PM monitoring by different Countries JRC/AQUILA QA/QC programme for PM 10 Discussion with recommendations on PM monitoring Collaboration with WHO in intercomparison exercises Outcome of EC Workshop on ozone precursor measurements Folie 5

6 Input to WG on Implementation Contribution of AQUILA to Review Report: Standardisation Type approval of instruments QS - accreditation QC in network monitoring stations Traceability Reference/equivalence methods Intercomparisons Data Quality objectives, further improvements Folie 6

7 PM Monitoring Presentations of experience with implementation of reference method and equivalence procedures: Germany: field Intercomparison for PM10 Switzerland: parallel measurements of PM10/PM2.5 France: Gravimetry compared to TEOM (50 ), TEOM (30 C), TEOM (30 C) + FDMS Spain: parallel measurements of PM10/PM2.5 Austria: variability of correction factor during a year Ireland: unusually high correction factors of TEOM to gravimetry Folie 7

8 European QA/QC programme for PM10 A joint JRC-AQUILA proposal Objectives: To provide information on comparability of PM10 implemented by NRL with ERLAP on comparability of routine PM10 Measurements at network monitoring stations with ERLAP About the state of practical use of correction factors for automatic monitors in the networks Support the enforcement of quality systems Folie 8

9 European QA/QC programme for PM10 The intercomparison will involve all Member States (EU- 25) and Candidate Countries wishing to participate. In each country NRL and JRC will select 1 to 2 urban background sites. For the comparison parallel measurements are made by ERLAP, National Reference Laboratory, Routine network monitoring station Institution performing assessment of correction factors for the particular station. Minimum number of parallel measurements: Folie 9

10 Discussion and Conclusions for PM measurements 1. The use of gravimetry does not automatically ensure that DQO of the 1st DD are met. 2. AQUILA supports the PM10 Guidance Document concerning application of correction factors for continuous measurement methods with heated probes. Due to the variability depending on monitoring site, climatic conditions, seasons, levels of concentrations,..., these correction factors should be evaluated with respect to these influencing conditions. 3. More systematic intercomparison trials for determination of correction factors will be necessary to meet DQO Folie 10

11 Discussion and Conclusions for PM measurements 4. The PM2.5 draft standard is a significant improvement and will bring better comparability across the EU. 5. As PM10 and PM2.5 concentrations may be highly correlated in many cases, collocated sampling should be kept to a minimum for the efficient use of resources. 6. It is necessary to carry out QC studies on existing PM10 networks, this will be done by JRC jointly with AQUILA. 7. AQUILA encourages strongly the development of intra- European cooperations Folie 11

12 Next meeting and Information Next meeting planned in October 2004 with 10 new members (former observers) and Candidate Countries Website of AQUILA: provides information on meetings, members, steering committee and contact information Folie 12