Figure 4

Mean volume particle size distribution from available AERONET Version 3 Level 2.0 hybrid and almucantar retrievals at Medellin (red), Quito (blue), Huancayo (yellow), and La Paz (green) for (a) all points, (b) only peak months during biomass burning seasons (March at Medellin and Quito, September at Huancayo and La Paz).