Distribution of daily data on fine particulate matter (PM2.5) and weather conditions in Beijing from 2010 to 2012
| Days | Mean±SE | Min | 25th | 50th | 75th | Max | |
|---|---|---|---|---|---|---|---|
| PM2.5 (μg/m3) | 1096 | 96.2±2.2 | 3.9 | 39.6 | 78.2 | 130.3 | 493.9 |
| Temperature (°C) | 1096 | 13.0±0.4 | –13 | 2 | 15 | 24 | 35 |
| Relative humility (%) | 1096 | 50.4±0.6 | 9 | 33 | 52 | 67 | 97 |
| Dew-point temperature (°C) | 1096 | 1.9±0.4 | –28.4 | –9.7 | 2.4 | 15.0 | 25.9 |