1. Limonene 50ppb on Beta-Caryo SOA 26.06.2008

2. Lights on at 09:49

3. 10 min in: AMS already measuring tons of mass!!

4. DMPS is seeing very very little though!

5. Second DMPS scan: 20 min of lights on

6. Almost a factor of 4.5 higher than DMPS

7. AMS vs. DMPS The difference in mass is not really true.. The DMPS is averaging only every 10min while the AMS is measuring every 1 min. The Beta-Caryo SOA system changes really rapidaly and therefore a comparison cannot be held until the mass peaks and stabilises..

8. 70 min after lights on

9. 100min mass peaked

11. Lights off

12. Clean DMPS scan mass is down to ~ 9 ugm-3 and no change at all to the mode!!

13. DMPS scan is averaged over time before and after lights on

14. After dilution

15. Still no mass formation

16. Blue distribution?? No change in mass

17. No change still

18. About 70 min after lights on nucleation…

19. AMS mass increased slightly

20. ~3 hours of lights on: Passed the second mass peak

22. 17:16 Lights off