Table 3 PM10 exposure at different vehicle speed
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 | |