Table 1 Summary statistics of weather conditions and air pollution data in Toronto from April 1 st 2002 to March 31 st 2010
Variables | Number of days of measurements | Mean | Standard deviation | Minimum | Percentiles | Maximum | ||
|---|---|---|---|---|---|---|---|---|
25th | 50th | 75th | ||||||
Mean temperature (°C) | 2922 | 8.7 | 10.7 | -20.3 | 0.3 | 9.0 | 18.2 | 31.5 |
Mean relative humidity (%) | 2922 | 69.3 | 14.4 | -25.6 | 61.9 | 70.5 | 78.3 | 98.8 |
PM2.5 (Ug/m3) | 2922 | 8.4 | 6.85 | 0 | 3.8 | 6.3 | 10.5 | 49.2 |
NO2 (Ug/m3) | 2922 | 20.5 | 7.7 | 5.0 | 15.0 | 19.4 | 24.8 | 62.6 |
O3 (ppb) | 2920 | 22.1 | 12.3 | 2.2 | 14.6 | 21.0 | 28.0 | 248.0 |
CO (Ug/m3) | 2915 | 0.4 | 0.2 | 0 | 0.2 | 0.3 | 0.5 | 1.8 |
SO2 (Ug/m3) | 2922 | 2.2 | 2.1 | 0 | 1.0 | 1.5 | 3.0 | 17.3 |
Cardiovascular admissions | 2922 | 100.2 | 20.9 | 49.0 | 84.0 | 101.0 | 116.0 | 161.0 |
Respiratory admissions | 2922 | 192.6 | 62.8 | 93.0 | 156.0 | 182.0 | 213.0 | 801.0 |