Table 2.
Levels of daily air pollutants and deaths from cardio-cerebrovascular disease in Yanbian, China.
| Minimum | Maximum | Mean ± SD a | Cold Season b (mean) | Warm Season c (mean) | |
|---|---|---|---|---|---|
| PM2.5 (μg/m3) | 4 | 289 | 32.90 ± 28.27 | 48.41 | 17.80 |
| PM10 (μg/m3) | 8 | 285 | 51.20 ± 35.82 | 68.46 | 34.42 |
| NO2 (μg/m3) | 6 | 88 | 22.30 ± 12.04 | 27.27 | 17.47 |
| SO2 (μg/m3) | 1 | 128 | 14.75 ± 16.63 | 25.55 | 4.24 |
| Temperature (°C) | −24 | 28 | 5.46 ± 12.87 | −5.16 | 15.79 |
| Relative humidity (%) | 15 | 97 | 66.09 ± 15.70 | 59.86 | 72.15 |
| Barometric (hPa) | 932 | 982 | 962.46 ± 7.35 | 966.24 | 958.80 |
| Total deaths | 9 | 40 | 22.39 ± 5.14 | 23.70 | 21.09 |
a SD standard deviation; b Warm season defined as May to October; c Cold season defined as November to April. PM2.5: particulate matter with a diameter ≤ 2.5 µm; PM10: particulate matter with a diameter ≤ 10 µm.