We saw only small changes for each noise and air pollution metric over the study period (Supplemental Table S1). Noise level estimates changed very little between 2003 and 2010 (change in mean LAeq,24 h < 0.3 dB). Particulates decreased over the study period (6.3 μg/m3 and 5.4 μg/m3 decrease in median concentration for PM10 and PM2.5, respectively) while the traffic components as well as NO2 and NOX fluctuated but decreased little. Differences are visualised in Supplemental Fig. S2. O3 levels, which are not just due to local sources, increased by 5.5 μg/m3.