Table 1 Ratio [median (2.5th percentile, 97.5th percentile) across participants] of station-monitored vs. personal exposure to air pollution at the minute level by microenvironments

Microenvironments

Active transport (N = 231, n = 28869)

2.03 (0.34, 21.15)

0.90 (0.06, 4.51)

2.40 (0.43, 13.33)

On-road motorized transport (N = 183, n = 20623)

1.49 (0.24, 15.18)

1.55 (0.03, 8.35)

2.93 (0.43, 16.30)

Places visited (N = 246, n = 792546)

1.94 (0.33, 13.46)

1.59 (0.04, 5.37)

3.33 (0.33, 18.20)

Separated rail transport (N = 113, n = 9305)

1.61 (0.34, 14.26)

1.42 (0.04, 6.99)

1.35 (0.27, 12.30)

Pooled (N = 246, n = 851343)

1.93 (0.32, 14.19)

1.56 (0.04, 5.41)

3.26 (0.33, 17.89)