1. Preliminary assessment of air quality for the first EU Daughter directive - Problems and solutions from a Dutch perspective - Peter van Breugel, Ed Buijsman, Hans Eerens 6th EIONET meeting Portoroz

2. Preliminary assessmentZones &

4. Preliminary assessmentThreshold values

5. Preliminary assessmentReference values

6. Preliminary assessment Interpretation

9. Preliminary assessmentRegime Zie ook pagina 29

10. Preliminary assessmentRegime Zie ook pagina 29

11. Preliminary assessmentLML- nr of Stations Zie ook pagina 29

12. Preliminary assessmentLML nr of stations Zie ook pagina 29

13. Conclusions * Number of regional stations can be reduced * More Urban stations necessary * Street models (CAR) needed to extrapolate results from street stations. * Definition of agglomerations open for interpretation, definition of physical agglomeration in combination with administrative units preferred. * Choice of zones in the Netherlands as a combination of provinces

14. Can EEA/ACC support (preliminary) assessments? • Criteria (test sets) for evaluating models for compliance checking • Set of models approved/suitable for compliance checking • List of approved Measurements methods/instruments • Information/discussion platform for EU air quality experts •Projections: –Baseline Assumptions / Data –Other…

15. Can EEA/ACC support (preliminary) assessments? •Preliminary Assessments Foreseen: 1.CO, Benzene (Fall 2001) 2.Ozone (Spring 2002) 3.HM, Hg, PAH (2002/2003)

16. Remarks foreseen assessments Fall 2001: Summary of European experience Spring 2002: Data available for ozone, support VOC locations / EMEP? 2002/3: * As, Ni, Cd: Cooperation EEA/ EMEP/ Countries: really needed? * Summary European experience * Can EEA/ EMEP/ Countries agree to go without an EU directive?