Fig. 5: Daily mortality over the SPS.

a Daily non-COVID deaths over the SPS throughout 2020 (blue), including the corresponding 7-day moving average (red). The black line shows the expected mortality (15-day centered moving average considering the mean values of daily deaths for the 2008–2019 period). The dark gray dotted line on the secondary y-axis represents COVID-19 deaths. The gray bars represent the smoke-induced PM2.5 peaks (PMP1, PMP2 and PMP3). b Excess mortality across SPS mesoregions from October 1st to October 14th. c Excess deaths observed during control cases that occurred in the SPS, including fire-count spike days alone from 2012 to 2019 (light red boxplots) and heatwave days alone from 2008 to 2019 (orange boxplot). The red error bar shows the P20F-related mortality burden estimated in the present study.