Figure 2

Conceptual diagrams showing the use of SOM to: (a) discover multipollutant patterns, as in Pierce et al. (2014); and (b) diurnal patterns of a single pollutant, as proposed in this study.
Conceptual diagrams showing the use of SOM to: (a) discover multipollutant patterns, as in Pierce et al. (2014); and (b) diurnal patterns of a single pollutant, as proposed in this study.