Figure 1

National pollutant surfaces created from recent satellite estimates (for PM 2.5 and NO 2 ) and a dispersion model (for O 3 ). Insets represent higher population density locations in Canada (south western BC and southern Ontario and Quebec).
National pollutant surfaces created from recent satellite estimates (for PM 2.5 and NO 2 ) and a dispersion model (for O 3 ). Insets represent higher population density locations in Canada (south western BC and southern Ontario and Quebec).