Table 3.
Descriptive statistics of daily air pollution concentrations and weather characteristics during the study period (June 26, 2006 to November 25, 2009. N=1249 possible days of measurement)
| Weather Characteristic | Mean | Standard Deviation | Minimum | 25th %tile | Median | 75th %tile | Maximum |
|---|---|---|---|---|---|---|---|
| Whole Year | |||||||
| Temperature (°C) | 11.8 | 10.1 | −13.8 | 3.6 | 13.0 | 20.1 | 31.3 |
| Relative Humidity (%) | 64.7 | 12.7 | 12.5 | 56.6 | 65.6 | 73.6 | 93.2 |
| Barometric Pressure (inches Hg) | 29.4 | 0.27 | 27.4 | 29.2 | 29.4 | 29.6 | 30.1 |
| Winter (December–February) | |||||||
| Temperature (°C) | −1.1 | 5.8 | −13.8 | −5.1 | −1.2 | 2.1 | 16.4 |
| Relative Humidity (%) | 68.9 | 10.8 | 41.0 | 61.3 | 70.0 | 77.5 | 92.3 |
| Barometric Pressure (inches Hg) | 29.3 | 0.22 | 27.4 | 29.2 | 29.3 | 29.5 | 29.7 |
| Summer (June–August) | |||||||
| Temperature (°C) | 22.2 | 3.5 | 10.7 | 19.8 | 22.1 | 24.3 | 31.3 |
| Relative Humidity (%) | 63.4 | 9.7 | 42.8 | 56.3 | 62.8 | 70.6 | 86.5 |
| Barometric Pressure (inches Hg) | 29.4 | 0.27 | 28.5 | 29.2 | 29.4 | 29.6 | 30.0 |