Fig. 2
From: Spatiotemporal patterns in air pollution and sound in Dhaka, Bangladesh
Spatial variation in average air pollution (A), sound (B), and their combination (C) in Dhaka. The mean PM2.5 concentrations are the mean average of temporally-adjusted site means from both seasons. The LAeq (B) represents the site median. The bivariate map (C) assigns each site into one of nine combined pollution categories based on PM2.5 and sound tertiles. Identified hotspots for PM2.5 and sound are also labelled. Tertiles were calculated from quantiles with breaks at 33.33% and 66.66%.
