Figure 7

Diurnal patterns in indoor (left) and outdoor (right) residential PM2.5 identified using DTW-SOM. The fraction in each cell represents the number of days with inhaler usage over the number of days matching the diurnal pattern.
Diurnal patterns in indoor (left) and outdoor (right) residential PM2.5 identified using DTW-SOM. The fraction in each cell represents the number of days with inhaler usage over the number of days matching the diurnal pattern.