Limonene 50ppbon

Beta-Caryo SOA26.06.2008

Lights on at 09:49

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

DMPS is seeing very very little though!

Second DMPS scan: 20 min of lights on

Almost a factor of 4.5 higher than DMPS

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..

70 min after lights on

100min mass peaked

Lights off

Clean DMPS scanmass is down to ~ 9 ugm-3 and no change at all to

the mode!!

DMPS scan is averaged over time before and after lights on

After dilution

Still no mass formation

Blue distribution??No change in mass

No change still

About 70 min after lights onnucleation…

AMS mass increased slightly

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

17:16Lights off