Table 1 Summary statistics of daily cause-specific mortality, air pollutants, and weather conditions in Chengdu, 2016–2020 (1827 days)
Variables | Mean | SD | Min | 1st | 20% | 50% | 90% | 99% | Max |
|---|---|---|---|---|---|---|---|---|---|
Total (non-accidental) | 187.9 | 39.3 | 106.0 | 124.0 | 156.0 | 180.0 | 246.0 | 303.0 | 340.0 |
CVD | 63.9 | 16.1 | 30.0 | 35.0 | 50.0 | 62.0 | 86.0 | 108.0 | 119.0 |
Respiratory | 54.1 | 19.0 | 20.0 | 27.0 | 39.0 | 49.0 | 79.0 | 119.0 | 136.0 |
Cerebrovascular | 28.8 | 7.8 | 10.0 | 14.0 | 22.0 | 28.0 | 40.0 | 48.0 | 65.0 |
IHD | 15.0 | 5.3 | 3.0 | 5.0 | 10.0 | 14.0 | 22.0 | 30.0 | 39.0 |
Air pollutants | |||||||||
PM2.5 (µg/m3) | 49.5 | 34.7 | 3.0 | 8.1 | 22.4 | 39.6 | 95.0 | 170.1 | 259.8 |
PM10 (µg/m3) | 78.5 | 49.9 | 5.5 | 15.3 | 38.7 | 66.6 | 143.1 | 247.0 | 358.1 |
SO2 (µg/m3) | 10.0 | 4.8 | 3.4 | 4.0 | 5.8 | 8.6 | 16.6 | 24.8 | 29.8 |
NO2 (µg/m3) | 38.0 | 13.4 | 7.0 | 13.8 | 26.3 | 36.2 | 56.5 | 73.4 | 91.1 |
O3 (µg/m3) | 95.1 | 49.4 | 10.3 | 17.8 | 51.7 | 84.4 | 166.3 | 219.4 | 278.0 |
Meteorological variables | |||||||||
Mean temperature (°C) | 16.8 | 7.4 | -1.6 | 3.0 | 8.6 | 17.1 | 26.3 | 29.0 | 27.0 |
Minimum temperature (°C) | 13.5 | 7.2 | -6.2 | -1.4 | 6.1 | 14.3 | 23.0 | 24.7 | 37.2 |
Maximum temperature (°C) | 79.9 | 8.2 | 3.3 | 6.1 | 12.8 | 21.7 | 32.0 | 35.6 | 99.0 |
Relative humidity (%) | 9.8 | 36.0 | 52.0 | 72.0 | 81.0 | 92.0 | 97.0 | ||