Table 2.
Summary of FeNO, 24-h mean concentrations of particulate matters, and 24-h average weather conditions.
| Mean (SD) | Min | Median | Max | IQR | |
|---|---|---|---|---|---|
| FeNO, ppb | 22.3 (15.3) | 4.0 | 17.0 | 90.0 | 17.5 |
| Particulate matter, μg/m3 | |||||
| PM2.5 | 47.1 (21.6) | 12.2 | 44.1 | 106.7 | 33.8 |
| PM10-2.5 | 23.6 (21.9) | 2.1 | 17.4 | 104.7 | 20.2 |
| Temperature, °C | 21.6 (4.8) | 8.7 | 21.4 | 32.8 | 6.7 |
| Relative Humidity, % | 71.7 (14.8) | 40.0 | 73.0 | 93.0 | 18.0 |
FeNO, fractional exhaled nitric oxide; IQR, interquartile range; PM2.5, particulate matter with an aerodynamic diameter ≤2.5 μm; PM10-2.5, particulate matter with an aerodynamic diameter between 2.5–10 μm; SD, standard deviation.