Table 2 Descriptive statistics of daily HAs for CD and environmental exposure data in Chengdu, 2015–2018
| Â | Variables | Units | Mean | Stda | Min | 25% | 50% | 75% | Max |
|---|---|---|---|---|---|---|---|---|---|
Daily HAs | CD HAs | persons | 70 | 35 | 6 | 42 | 68 | 96 | 214 |
Stroke HAs | persons | 45 | 21 | 4 | 27 | 43 | 60 | 131 | |
Air pollutants | PM2.5 | μg/m3 | 57.9 | 40.6 | 6.1 | 29.6 | 46.3 | 74.5 | 324.5 |
PM10 | μg/m3 | 95.7 | 62.1 | 12.0 | 51.6 | 78.4 | 124.5 | 492.5 | |
PMC | μg/m3 | 37.8 | 25.6 | 3.9 | 20.3 | 30.9 | 48.0 | 238.2 | |
O3 | μg/m3 | 96.6 | 54.6 | 5.6 | 54.2 | 86.2 | 135.2 | 290.4 | |
SO2 | μg/m3 | 12.7 | 5.5 | 3.9 | 8.5 | 11.2 | 15.3 | 37.9 | |
NO2 | μg/m3 | 53.9 | 17.7 | 13.9 | 41.0 | 51.9 | 64.6 | 130.4 | |
CO | mg/m3 | 1.0 | 0.4 | 0.4 | 0.8 | 1.0 | 1.2 | 2.8 | |
AQI | 1 | 85.2 | 48.5 | 16.7 | 52.5 | 71.4 | 103.8 | 404.6 | |
Meteorological measures | TEM | ℃ | 16.9 | 7.3 | -1.1 | 10.1 | 17.4 | 23.2 | 30.2 |
RH | % | 80.5 | 9.2 | 43.0 | 74.4 | 80.8 | 87.7 | 99.3 |