Relative contributions of selected multigeneration products to chamber SOA formed from photooxidation of a range (C-C) of -alkanes under high NO conditions.

A series of chamber experiments was conducted to investigate the composition of secondary organic aerosol (SOA) following oxidation of a range of parent -alkanes (C-C) in the presence of NO . The relative contribution of selected species representing first, second, and higher generation products to SOA mass was measured using a high-resolution aerosol mass spectrometer. Gas chromatography was also used for a limited set of amenable species.