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Table 2 Weekly mean value (standard deviation) of air pollutants and meteorological factors

From: Association of airborne particles, protein, and endotoxin with emergency department visits for asthma in Kyoto, Japan

  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)