Extended Data Figure 3: OA mass screens used to estimate SOA production.
From: Oil sands operations as a large source of secondary organic aerosols
a, b, OA mass screens for F2 (a) and F3 (b). The SOA production rate during these flights (~77 km and ~50 km between screens) is the sum of the differences in OA transfer rates between screens (that is,: 2.7 ± 1.0 t h−1 and 2.1 ± 0.9 t h−1). The overall formation rate from the OS source region (S) is the integrated OA transfer rate through screen B (5.3 ± 1.0 t h−1 and 4.3 ± 0.9 t h−1). Map data: Google, image Landsat, 2015.
