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Table 2 PM10 exposure in different vehicle modes

From: Mobile air quality studies (MAQS) in inner cities: particulate matter PM10 levels related to different vehicle driving modes and integration of data into a geographical information program

  Inside environmental (low emission) zone Outside of environmental (low emission) zone
Measurement no. (time of day) Mean PM10 conc., West to East (μg/m 3) Mean P10 conc., East to West(μg/m 3) Mean P10 conc., West to East (μg/m 3) Mean P10 conc., East to West (μg/m 3)
Roof open  
1 (10.00 – 10.28) 41.1 ± 6.2 31.7 ± 3.1 31.2 ± 3.6 24.5 ± 2.6
4 (11.24 – 11.52) 27.2 ± 7.2 20.9 ± 1.2 20.9 ± 2.5 19.5 ± 4.1
7 (12.48 – 13.16) 25.1 ± 5.7 18.3 ± 5.9 18.6 ± 6.6 19.7 ± 9.2
10 (14.12 - 14.40) 13.6 ± 2.2 12.6 ± 2.1 12.5 ± 2.2 32.1 ± 37.9
13 (15.36 – 16.04) 15.9 ± 3.4 16.2 ± 2.4 13.8 ± 3.7 17.1 ± 3.8
Roof closed, windows open   
3 (10.56 – 11.24) 28.6 ± 1.6 25.2 ± 3.7 21.4 ± 1.1 21 ± 3.1
6 (12.20 - 12.48) 13.7 ± 2.1 18.7 ± 4.6 15.4 ± 3.0 17.2 ± 5.9
9 (13.44 – 14.12) 15.5 ± 1.4 13.8 ± 1.2 17.7 ± 4.4 17.2 ± 10.9
12 (15.08 – 15.36) 16.2 ± 6.7 41.0 ± 31.2 13.0 ± 1.7 12.6 ± 1.4
15 (16.32 – 17.00) 19.4 ± 3.0 22.6 ± 7.6 23.8 ± 18.5 17.7 ± 3.8
Roof closed, windows closed   
2 (10.28 – 10.56) 32.5 ± 6.4 25.1 ± 1.5 26.1 ± 2.6 25.9 ± 7.4
5 (11.52 – 12.20) 23.7 ± 3.6 17.6 ± 2.5 17.8 ± 5.8 15.8 ± 2.1
8 (13.16 – 13.44) 14.1 ± 1.1 17.8 ± 3.1 12.3 ± 2.5 16.4 ± 5.7
11 (14.40 – 15.08) 10.2 ± 0.7 10.9 ± 1.8 11.5 ± 1.4 11.3 ± 1.6
14 (16.04 – 16.32) 13.2 ± 1.7 13.9 ± 1.5 13.4 ± 2.6 17.7 ± 5.8