Table 3.
Average annual concentrations of air pollutants and distance to HTR at baseline address
| Characteristics | Mean ± SD | Min | P25 | P50 | P75 | Max | IQR |
|---|---|---|---|---|---|---|---|
| PM10 (μgm3) | 36.9 ± 5.3 | 29.6 | 33.5 | 35.4 | 38.4 | 58.2 | 4.9 |
| PM2.5 (μg/m3) | 19.7 ± 2.0 | 17.0 | 18.5 | 19.2 | 20.3 | 27.4 | 1.8 |
| Coarse PM (μg/m3) | 17.4 ± 3.4 | 9.8 | 15.2 | 16.8 | 18.6 | 31.4 | 3.4 |
| PM2.5 absorbance (10−5/m) | 2.76 ± 0.48 | 2.16 | 2.49 | 2.66 | 2.83 | 4.77 | 0.33 |
| NO2 (μg/m3) | 43.9 ± 10.3 | 13.2 | 36.8 | 43.3 | 49.5 | 84.9 | 12.7 |
| NOx (μg/m3) | 87.4 ± 24.1 | 16.9 | 70.0 | 85.4 | 102.6 | 173.4 | 32.6 |
| O3 (μg/m3) | 97.6 ± 5.9 | 54.6 | 95.7 | 98.8 | 100.3 | 112.8 | 4.6 |
| Distance to HTR (m) | 203 ± 198 | 2 | 71 | 149 | 272 | 946 | 201 |
HTR High-Traffic Road
EU air quality standards for annual averages are 25 μg/m3 for PM2.5, 40 μg/m3 for PM10 and NO2. EU target value for maximum daily 8-h mean O3 is 120 μg/m3