Beta-Caryophyllene 50ppbNOx 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 (O3 2260 ppb)