Table 2 Weekly mean value (standard deviation) of air pollutants and meteorological factors
Fine particle | Coarse particle | Temperature(°C) | Relative humidity (%) | Wind speed (m/s) | Air pressure (hPa) | |||||
|---|---|---|---|---|---|---|---|---|---|---|
Particles (μg/m3) | Protein (μg/m3) | Endotoxin (EU/m3) | Particles (μg/m3) | Protein (μg/m3) | Endotoxin (EU/m3) | |||||
Whole | 14.4 (5.2) | 1.42 (0.84) | 0.0019 (0.0022) | 7.6 (3.3) | 0.12 (0.08) | 0.0052 (0.0052) | 15.1 (7.7) | 65.5 (6.4) | 2.1 (0.3) | 1010.2 (4.9) |
Autumn 1 | 12.2 (2.1) | 1.83 (0.74) | 0.0031 (0.0035) | 7.7 (1.1) | 0.17 (0.11) | 0.0098 (0.0089) | 18.0 (5.2) | 65.9 (5.0) | 1.9 (0.26) | 1010.7 (4.15) |
Winter 1 | 13.2 (4.4) | 1.26 (0.34) | 0.0007 (0.0006) | 7.1 (5.8) | 0.07 (0.04) | 0.0014 (0.0007) | 5.6 (1.3) | 69.2 (3.5) | 2.0 (0.3) | 1012.6 (2.7) |
Spring 1 | 18.7 (7.4) | 1.96 (0.70) | 0.0020 (0.0022) | 8.5 (3.3) | 0.16 (0.05) | 0.0039 (0.0026) | 14.6 (5.6) | 61.5 (9.2) | 2.2 (0.2) | 1010.0 (4.5) |
Summer | 12.7 (4.3) | 0.79 (0.33) | 0.0008 (0.0009) | 8.1 (2.0) | 0.19 (0.07) | 0.0076 (0.0047) | 26.1 (3.1) | 68.6 (5.1) | 2.2 (0.4) | 1002.9 (1.8) |
Autumn 2 | 11.3 (4.2) | 0.95 (0.42) | 0.0026 (0.0021) | 7.4 (2.9) | 0.05 (0.02) | 0.0074 (0.0050) | 18.1 (4.0) | 67.1 (6.2) | 1.9 (0.3) | 1011.2 (4.2) |
Winter 2 | 12.3 (3.1) | 1.20 (0.71) | 0.0010 (0.0005) | 5.5 (2.1) | 0.05 (0.03) | 0.0017 (0.0004) | 6.9 (2.6) | 65.1 (4.4) | 2.1 (0.3) | 1014.4 (3.0) |
Spring 2 | 17.8 (5.0) | 2.05 (1.32) | 0.0032 (0.0025) | 8.6 (3.6) | 0.12 (0.05) | 0.0049 (0.0031) | 15.5 (5.04) | 61.0 (5.3) | 2.2 (0.2) | 1010.1 (3.7) |