From: Air pollution in association with mental and self-rated health and the mediating effect of physical activity
Mean
25th percentile
50th percentile
75th percentile
IQR
PM2.5
14.5
12.8
14.4
16.5
3.8
BC
1.4
1.0
1.2
1.6
0.6
NO2
21.8
16.2
20.3
27.0
10.8