Distribution of air pollutants, pollen and spores
| Years | Min | p25 | p50 | p75 | Max | |
|---|---|---|---|---|---|---|
| Daily values (μg/m3) | ||||||
| PM10 | 1991–5 | 17.3 | 47.6 | 61.2 | 80.3 | 240.7 |
| Black smoke | 1985–95 | 10.6 | 29.2 | 40.0 | 54.8 | 258.0 |
| NO2 (1 h) | 1986–95 | 8.0 | 71.9 | 89.7 | 112.4 | 339.2 |
| NO2 (24 h) | 1986–95 | 5.2 | 41.1 | 52.3 | 64.0 | 141.8 |
| O3 (1 h) | 1986–95 | 6.6 | 46.0 | 69.3 | 94.0 | 283.4 |
| O3 (8 h) | 1986–95 | 3.9 | 31.8 | 54.4 | 79.0 | 244.5 |
| SO2 | 1985–95 | 2.2 | 11.7 | 18.8 | 39.2 | 160.0 |
| CO (ng/m3) | 1991–5 | 0.6 | 4.9 | 7.7 | 12.1 | 66.0 |
| Weekly values (counts/m3) | ||||||
| Total pollen | 1985, 1988–94 | 0.27 | 11.28 | 40.09 | 120.06 | 3740.1 |
| Gramineas | 1985, 1988–94 | 0 | 0.27 | 1.11 | 4.10 | 92.70 |
| Spores | 1990–4 | 0.66 | 7.20 | 19.74 | 38.23 | 518.4 |
| Cladosporium | 1990–4 | 0 | 0 | 0.14 | 1.82 | 120.0 |
| Alternaria | 1990–4 | 0 | 0 | 0 | 0 | 6.15 |
| Epicoccum | 1990–4 | 0 | 0 | 0 | 0 | 2.57 |
| Helminthosporium | 1990–4 | 0 | 0 | 0 | 0 | 0 |