Extended Data Figure 2: Measured organic and sulfate aerosol concentration during F1.
From: Oil sands operations as a large source of secondary organic aerosols
Successive transects (labelled A, B, C and D) through the same major OS plumes at approximately 600 m altitude and 1 h apart in transit time. Inset pie plots show the mean relative mass fraction for organics (green), sulfate (red), nitrate (blue) and ammonium (orange) during the yellow highlighted section. Organics dominate the aerosol mass throughout the flight; note the change in magnitude between the OA scale on the left and SO4 scale on the right. Map data: Google, image Landsat, 2015.
