Figure 1

Box plots of distribution of air pollution concentrations by case (CA; red) and control (CO; green) per study area. Each panel shows one air pollution marker; PM10, PM2.5 (PM2.5 and PM10 both, estimated from the PolluMap dispersion models; µg/m3), NO2 (estimated from LUR model; µg/m3), PNC (particle number concentration; particles/cm3), and LDSA (lung deposited surface area; µm2/cm3). Horizontal lines correspond to medians, and boxes to the 25th–75th percentiles; whiskers extend to data within the interquartile range times 1.5.