Beta-Caryophyllene 50ppb NOx 33 ppb RH 50 % First real experiment 12 March 2008

Lights on at 12:56, nucleation is starting already after only 5 min

First DMPS scan 53% RH at 25 C, particle number is shooting off the roof!

33 min after lights on: DMPS 10ugm-3 and >25e4 p/cc

13:59 (1 hour after lights on) 15.5 ugm-3 and 23e4 p/cc (110 nm)

15:19 (2.5 h of lights on) 23.7 ugm-3 and 17e4 p/cc (150 nm)

15:59 (3 hours of lights on) 24.2 ugm-3 and 14e4 p/cc (170 nm)

16:39 (3 h 45 min) 23.9 ugm-3 and 11e4 p/cc (188 nm)

16:59 (4 hours of lights on) 23.7 ugm-3 and 10e4 p/cc (217 nm)

Filter collection Filter collected for York (# II-1) An analytical balance was not available to weight the sample. The last DMPS scan measured 23.7ugm-3 Bag volume was about 15 m3 Estimated mass is 355 ug

Post experiment procedure completed (O ppb)