Fig. 1: Global maps of estimated concentrations.
From: Global population exposure to landscape fire air pollution from 2000 to 2019
a–f, Maps of LFS PM2.5 (a,c,e) and O3 (b,d,f) concentration in the first (a,b) and second (c,d) decades of 2000–2019, and the estimated trend (e,f) during the period. For each 0.25° × 0.25° grid, the trend from 2000 to 2019 was fitted using all annual concentrations during the period (not just 2000 and 2019 data) with a linear regression. P (e,f) indicates the P values for long-term trends, with P < 0.05 indicating a statistically significant trend.
