Beta-caryophyllene 250ppb NOx 117 ppb Dp 13.6 Thursday 13 March 2008

Pre-exp procedure completed according to schedule

First DMPS scan (13 min after lights on) DMPS mass 29.7 ugm-3, about 3.4e4 p/cc 115 nm

33 min after lights on DMPS mass 95.5 ugm-3, about 3.3e4 p/cc 171 nm

83 min after lights on DMPS mass ugm-3, about 2.9e4 p/cc 217 nm

113 min after lights on DMPS mass ugm-3, about 2.6e4 p/cc 217 nm

193 min after lights on DMPS mass ugm-3, about 19e3 p/cc 241 nm

223 min after lights on DMPS mass ugm-3, about 17e3 p/cc 246 nm

Last DMPS run (4 hours 3 min) DMPS mass ugm-3, about 16e3 p/cc 246 nm

15:34 post exp complete O3 conc. is 2010ppb