Table 1 Summary statistics daily levels of resident’s respiratory disease mortality and environmental indicators collected in Changsha, 2015–2018
Variable | Year-round (N = 1461) | Warm-season(April- October) (N = 856) | Cold-season(November -March) (N = 605) | |||
|---|---|---|---|---|---|---|
Mean ± SD | Range(min, max) | Mean ± SD | range(min, max) | Mean ± SD | range(min, max) | |
PM2.5(μg/m3) | 53.3 ± 35.2 | (3,286) | 39.2 ± 20.9 | (3,160) | 73.3 ± 41.3 | (8,286) |
PM10(μg/m3) | 73.0 ± 41.7 | (4,333) | 62.8 ± 34.1 | (4,257) | 87.4 ± 46.9 | (6,333) |
SO2(μg/m3) | 14.2 ± 7.7 | (4,71) | 12.7 ± 5.1 | (4,42) | 16.2 ± 9.9 | (4,71) |
NO2(μg/m3) | 36.2 ± 16.3 | (10,109) | 29.3 ± 11.6 | (10,73) | 45.9 ± 17.1 | (14,109) |
O3(μg/m3) | 92 ± 48.9 | (7,260) | 114.3 ± 45.0 | (13,260) | 60.5 ± 34.9 | (7,200) |
Temperature(°C) | 18.67 ± 8.8 | (-2.7,34.6) | 24.8 ± 5.2 | (9.6,34.6) | 10.1 ± 4.7 | (-2.7,25.1) |
Relative humidity (%) | 74.9 ± 14.0 | (27,100) | 74.4 ± 12.3 | (40,99) | 75.5 ± 16.1 | (27,100) |
Respiratory disease mortality | 6.0 ± 3.4 | (0,43) | 5.6 ± 3.4 | (0,43) | 6.6 ± 3.4 | (0,35) |