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Table 3 PM10 exposure at different vehicle speed

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 environmental (low emission) zone
Measurement no. (time of day)   Mean P10 conc., West to East (μg/m 3)   Mean P10 conc., West to East (μg/m 3)
Roof open  
1 (10.00 – 10.28) A: 37.5 ± 4.1 A: 31.4 ± 2.4
B: 34.5 ± 1.3 B: 30.3 ± 2.3
C: 43.6 ± 6.1 C: 33.8 ± 3.4
4 (11.24 – 11.52) A: 22.9 ± 0.6 A: 18.8 ± 1.1
B: 23.3 ± 0.7 B: 20.4
C: 28.9 ± 8.1 C: 22.6 ± 2.2
7 (12.48 – 13.16) A: 20.2 ± 1.2 A: 24.0 ± 9.0
B:- B: 20.4 ± 0.4
C: 25.3 ± 5.9 C: 18.8 ± 5.7
10 (14.12 - 14.40) A: 14.1 ± 1.6 A: 12.5 ± 1.2
B: 12.2 ± 2.7 B: 13.7 ± 2.7
C: 13.8 ± 2.2 C: 13.4 ± 2.2
13 (15.36 – 16.04) A: 15.5 ± 3.0 A: 17.8 ± 0.9
B: 17.5 ± 3.8 B: 15.3 ± 5.7
C: 16.3 ± 4.1 C: 13.5 ± 3.5
Roof closed, window closed  
2 (10.28 – 10.56) A: 31.6 ± 6.6 A: 25.6 ± 1.0
B: 32.5 ± 1.0 B: 26.3 ± 1.3
C: 32.8 ± 6.0 C:26.3 ± 3.2
5 (11.52 – 12.20) A: 23.9 ± 3.9 A: 18.1 ± 3.6
B: 24.8 ± 3.7 B: 14.0 ± 1.6
C: 23.4 ± 3.6 C: 17.7 ± 6.4
8 (13.16 – 13.44) A: 14.3 ± 0.8 A: 12.0 ± 0.4
B:- B:-
C: 14.0 ± 1.2 C: 13.6 ± 2.5
11 (14.40 – 15.08) A: 9.9 ± 0.5 A: 12.3 ± 0.9
B: 10.5 ± 0.4 B: 12.0 ± 0.6
C: 10.1 ± 0.8 C: 12.0 ± 1.3
14 (16.04 – 16.32) A: 13.0 ± 2.1 A: 13.5 ± 2.6
B: 12.8 ± 1.9 B: 16.1 ± 1.8
  C: 13.3 ± 1.7 C: 14.2 ± 2.1
  1. Average PM10 values were calculated depending on vehicle speed.
  2. (A) denotes mean +/- SD of PM10 at a vehicle speed of 0 – 1 km/h.
  3. (B) at a speed between 1 and 10 km/h and (C) at a speed of 10 – 50 km/h.