Table 2 Distributions of daily air pollution, meteorological factors, and outpatient visits for arrhythmia
From: Associations between air pollution and outpatient visits for arrhythmia in Hangzhou, China
Variables | Mean + SD | Min | 25th | 50th | 75th | Max |
|---|---|---|---|---|---|---|
PM2.5 (ug/m3) | 52.9 + 29.2 | 7.6 | 31.2 | 46.6 | 67.7 | 205.5 |
PM10 (ug/m3) | 77.6 + 41.8 | 5.8 | 46.6 | 70.5 | 101.0 | 271.0 |
SO2 (ug/m3) | 15.5 + 7.7 | 4.1 | 9.7 | 13.5 | 19.1 | 46.7 |
NO2 (ug/m3) | 43.9 + 16.5 | 9.3 | 31.5 | 41.8 | 54.4 | 109.7 |
CO (mg/m3) | 0.85 + 0.25 | 0.39 | 0.67 | 0.80 | 0.97 | 2.05 |
O3 (ug/m3) | 55.1 + 27.1 | 5.3 | 34.2 | 51.8 | 73.5 | 149.3 |
Temperature (°C) | 17.8 + 8.4 | −5.0 | 10.5 | 19.1 | 24.4 | 34.4 |
Humidity (%) | 74.4 + 13.9 | 27.0 | 65.0 | 76.0 | 85.0 | 98.0 |
Air pressure (hPa) | 1011.4 + 8.9 | 989.3 | 1003.7 | 1011.1 | 1018.7 | 1036.6 |
Wind Speed (m/s) | 3.9 + 3.8 | 0.0 | 0.5 | 3.2 | 7.4 | 12.7 |
Outpatient visits | 14.8 + 7.9 | 0.0 | 9.0 | 14.0 | 20.0 | 59.0 |