1. Isoprene 300ppb on B-Caryo SOA Seed VOC/NOx 1 04.07.2008

2. Lights on at 09:50 Short DMA is out of service

3. 1 HALO

4. 1.5 HALO

7. 12:20 (2.5 HALO) lights off

8. During filter flushing

9. DMPS averaged of filling and lights on (mode has not changed)

10. ~ 1 HALO (isoprene)

12. High mz 30

13. There could be a bit of nucleation cpc number is stable and not decreasing anymore

14. 1.75 HALO (nucleation is happening)

15. 2.5 HALO (old mode increased from 217 to 250nm, new mode appeared)

16. Nucleation + wall losses (mass is not changing much)

17. 3 HALO nucleation stopped at about 2 HALO!

18. 3.3 HALO

19. Number is flat! Nucleation – wall loss = ZERO!

20. 16:53 Lights off

21. Too long stopped it at 19:13