1. A-Pinene 50ppb Nox 33 ppb 11.07.2008

2. Fill completed, allowing 20 min for instruments to stabilise and measure background

3. Clean AMS measurement

4. 11:00 Lights on

5. ~ 11:07 nucleation started

6. 52 MALO: very slow build up of number conc

7. 100 MALO: number has not peaked yet, mass starting to come

8. 2.25 HALO: CPC played up a bit

9. ~ 3.5 HALO

11. 4 HALO: I think the bag is not very clean.. Nucleation is about to stop..

12. Seeing some of the masses reported on Wed (bkgd) and Thursday!! 50amu difference

13. 17:00 Lights off

14. After dilution

15. 10 min later

16. Before dilution

17. After dilution