Extended Data Fig. 10: Seasonal geographical origin of secondary organic aerosol categories.
From: Substantial contribution of transported emissions to organic aerosol in Beijing
3-day back dispersion maps of air observed at the Beijing site (yellow star) in contact with the surface, colored by component concentration observed at the site. Areas contributing to above-average concentrations at the Beijing site are indicative of high emissions of the specific SOA precursors and shown in olive (below-average concentrations are shown in grey).
