Figure 2. Normalized boxplot presenting the distribution of hourly BC, CO, NOx, and IMSI from Sept 8, 2014 to Jan 5, 2015, ordered in increasing distance from the highway source.
NR – DRIVE Near-road (3m), NDO - Near Dorm outside (60 m), NDI - Near Dorm inside (60 m), FDO - Far Dorm outside (1.4 km), FDI - Far Dorm inside (1.4 km), UB - Urban background (2.3 km)