UPLC-MS/MS replication data for secondary organic aerosol formation from early-generation oxidation products of decamethylcyclopentasiloxane depends on seed aerosol composition

These measurements are part of chamber experiments conducted at the University of Colorado Boulder to investigate secondary organic aerosol (SOA) formation from the early-generation oxidation products of decamethylcyclopentasiloxane (D5) under low OH exposure conditions. The associated data represent gas- and particle-phase samples collected for offline analysis to characterize the distribution of early oxidation products in each ammonium sulfate-seeded experiment, as well as the average across all experiments. Samples were collected over a three-hour period after the lights were turned off, corresponding to a total sampled volume of 3.6 m³, or approximately 18% of the chamber's total volume. Results are reported as signal distributions in percentage.