Table 1.
Summary statistics for daily number of deaths, daily air pollution concentrations and weather conditions in Guangzhou, China, 2005–2012
| Percentile | ||||||
|---|---|---|---|---|---|---|
| Variables | Mean ± SD | Min | 25th | 50th | 75th | Max |
| Daily number of deaths | 66 ± 14 | 21 | 56 | 64 | 75 | 248 |
| PM10 (μg/m3) | 74.9 ± 39.6 | 7.6 | 46.4 | 66.9 | 94.6 | 342.3 |
| SO2 (μg/m3) | 41.0 ± 29.6 | 2.3 | 19.9 | 33.7 | 53.6 | 214.1 |
| NO2 (μg/m3) | 62.4 ± 27.8 | 16.7 | 42.1 | 55.6 | 75.4 | 254.7 |
| Mean temperature (°C) | 22.5 ± 6.3 | 5.1 | 18.0 | 24.2 | 27.7 | 34.2 |
| Mean humidity (%) | 72.9 ± 13.2 | 20.0 | 65.0 | 75.0 | 83.0 | 99.0 |
| Mean pressure (hpa) | 10,074 ± 70 | 9874 | 10,023 | 10,071 | 10,128 | 10,272 |