Daily exposure | Mean±sd | Median | Minimum | Quartile 1 | Quartile 3 | Maximum | Correlation¶ | ||
O3 | PM10 | Relative humidity | |||||||
Temperature °C | 13.1±6.2 | 13.7 | −3.7 | 8.3 | 17.9 | 28.6 | 0.64 | 0.05 | −0.42 |
O3 µg·m−³ | 62.2±33.4 | 57.5 | 2.3 | 40.0 | 79.5 | 190.5 | 0.01 | −0.64 | |
PM10 µg·m−³ | 27.0±14.5 | 23.8 | 7.5 | 18.0 | 32.0 | 214.0 | −0.03 | ||
Relative humidity % | 75.7±10.4 | 77.1 | 43.4 | 68.6 | 83.3 | 96.4 |
PM10: particles with a 50% cut-off aerodynamic diameter of 10 μm. #: May 2006–September 2008, n=858 days; ¶: Spearman correlation coefficient (ρ).