Table 2. Descriptive Statistic of Air Pollution and Climate in Shanghai by Years and by Seasons between January 2008 and December 2012 (Mean ± SD).
| Time | SO2 (μg/m3) | NO2(μg/m3) | O3 (μg/m3) | PM10 (μg/m3) | PM2.5 (μg/m3) | Temperature (°C) | Humidity (%) | Wind Velocity (m/s) |
|---|---|---|---|---|---|---|---|---|
| Years | ||||||||
| Total | 33.2 ± 21.6 | 51.0 ± 20.9 | 86.4 ± 37.8 | 78.4 ± 53.9 | 40.8 ± 28.2 | 17.2 ± 9.2 | 69.4 ± 12.7 | 2.9 ± 1.0 |
| 2008 | 51.4 ± 26.9 | 56.3 ± 22.2 | 85.8 ± 37.8 | 84.3 ± 45.7 | 53.3 ± 32.8 | 17.3 ± 9.2 | 70.2 ± 12.8 | 3.0 ± 1.0 |
| 2009 | 33.3 ± 18.1 | 51.9 ± 19.6 | 87.2 ± 39.1 | 77.7 ± 43.6 | 48.1 ± 31.1 | 17.5 ± 9.0 | 70.2 ± 12.6 | 2.9 ± 1.0 |
| 2010 | 29.2 ± 17.4 | 49.6 ± 21.7 | 82.3 ± 37.1 | 78.7 ± 65.0 | 38 ± 27.3 | 17.3 ± 9.1 | 68.6 ± 12.8 | 2.9 ± 1.0 |
| 2011 | 29.1 ± 17.9 | 51.2 ± 20.8 | 84.2 ± 37.2 | 79.7 ± 67.4 | 32.7 ± 22.2 | 17.0 ± 9.4 | 68.7 ± 13.0 | 2.8 ± 0.9 |
| 2012 | 22.7 ± 13.7 | 46.2 ± 19.0 | 92.4 ± 37.1 | 71.3 ± 40.9 | 35.5 ± 22.4 | 16.9 ± 9.2 | 69.6 ± 12.3 | 2.9 ± 0.9 |
| Seasons | ||||||||
| Spring | 33.6 ± 18.9 | 54.6 ± 18.2 | 103.3 ± 34.6 | 89.4 ± 67.4 | 45.3 ± 28.7 | 15.7 ± 5.6 | 65.5 ± 15.3 | 3.1 ± 0.9 |
| Summer | 23.3 ± 13.7 | 38.2 ± 16.6 | 99.4 ± 41.7 | 61.2 ± 33.5 | 28.5 ± 18.6 | 27.6 ± 3.1 | 74.3 ± 8.6 | 3.0 ± 1.0 |
| Autumn | 29.3 ± 17.8 | 51.9 ± 21.8 | 85.6 ± 33.0 | 76.7 ± 52.0 | 38.7 ± 29.1 | 19.5 ± 5.5 | 69.7 ± 10.9 | 2.6 ± 0.8 |
| Winter | 47.1 ± 27.0 | 59.7 ± 20.5 | 56.5 ± 18.0 | 86.5 ± 52.6 | 51.7 ± 29.5 | 5.6 ± 3.8 | 68.1 ± 13.3 | 2.7 ± 0.9 |