Table 2.
Description of exposures at both locations, in the Oxford Street II and TAPAS II studies.
| Oxford Street II |
|||||||
|---|---|---|---|---|---|---|---|
| Hyde Park |
Oxford Street |
p-Value⁎ | |||||
| N | Mean ± sd | Range | n | Mean ± sd | Range | ||
| Exposurea (unit) | |||||||
| CBLK (μg/m3) | 47 | 1.7 ± 1.2 | 0.3–5.2 | 49 | 10.9 ± 3.1 | 6.7–17.8 | <2.2e-16 |
| NO2 (μg/m3) | 41 | 10.3 ± 7.7 | 3.0–40.5 | 38 | 17.3 ± 7.6 | 6.1–46.2 | 1.3e-06 |
| PM2.5 (μg/m3) | 50 | 11.2 ± 13.0 | 3.4–60.8 | 49 | 20.5 ± 12.9 | 6.4–75.5 | 0.0005 |
| PM10 (μg/m3) | 50 | 23.0 ± 16.4 | 3.7–80.2 | 49 | 32.4 ± 14.7 | 14.1–84.4 | 0.001 |
| UFP (particles/cm3) | 50 | 6738 ± 3268.8 | 2846–15,690 | 48 | 24,840 ± 8087.6 | 7197–38,640 | <2.2e-16 |
| TAPAS II |
|||||||
|---|---|---|---|---|---|---|---|
| Barceloneta |
Ronda |
p-Value⁎ | |||||
| N | Mean ± sd | Range | n | Mean ± sd | Range | ||
| PM2.5 (μg/m3) | 28 | 39.2 ± 13.7 | 24.9–68.8 | 29 | 82.5 ± 17.1 | 54.7–116.3 | 1.025e-11 |
| PM10 (μg/m3) | 28 | 64.1 ± 41.9 | 22.4–144.8 | 29 | 124.6 ± 40.5 | 58.4–204.0 | 9.117e-06 |
| PMcoarse (μg/m3) | 28 | 25.6 ± 28.5 | 0.0–75.9 | 29 | 42.1 ± 25.0 | 3.8–87.7 | 0.04916 |
| NOx (ppb) | 28 | 99.3 ± 61.9 | 22.9–212.8 | 29 | 660.8 ± 119.7 | 389.4–1063.0 | 2.083e-13 |
a
CBLK = black carbon, NO2 = nitrogen dioxide, PM2.5 = particulate matter of 2.5 μm or less in diameter, PM10 = particulate matter of 10 μm or less in diameter, UFP = ultra-fine particles, PMcoarse = PM2.5 - PM10, NOx = nitrogen oxides.
⁎
p-Values are for pair-wise comparisons according to the location (Hyde Park vs Oxford Street and Barceloneta vs Ronda).