About 240,000 particles were detected, sized and their composition characterized. A preliminary analysis of the data shows that the over 50% of the particles contain organics and more than 40% contain sulfates virtually all of which were found to be internally mixed with organics. Many particle types were detected episodically for a few hours before they disappeared for a few days. We present an analysis of an episode that took place on the night of the 13th of September when the site was above the nocturnal boundary layer engulfed by a power plant plume. During this night the number of nitrate and vanadium particles suddenly increased for a few hours.
The recently developed data analysis and visualization tools will be applied to the single particle data set and the analysis results will be presented in the context of the overall TX 2000 field campaign.