Fig. 3From: Long-term exposure and health risk assessment from air pollution: impact of regional scale mobilityRatio of net commuters and resident population averaged over Lombardy (Italy) for the different hours of the day. The dashed line represents the mean while the shaded area represents the standard deviation. Most of the displacement occurs between 6 and 9 a.m. and between 4 and 7 p.mBack to article page