Extended Data Figure 6: Bitumen-related IVOCs in ambient ground-based data.
From: Oil sands operations as a large source of secondary organic aerosols
a, Total ion chromatogram from ambient sampling in the OS when impacted by forest-influenced air (blue) and OS-operations air (red). The bitumen vapour headspace chromatogram is also shown (black), demonstrating that a large fraction of the gaseous mass in OS-impacted air has volatilities (C13–C16 range) critical for SOA formation. b, Associated volatility distribution for OS-impacted air scaled by SOA yield11. c, One-hour back trajectory for OS-impacted sample using the hybrid single particle Lagrangian integrated trajectory model (HYSPLIT). d, One-hour HYSPLIT back trajectory for forest-influenced sample.
