| Type | Value (grains/m³) | Level |
|---|---|---|
| Plantain * | 1 | Low |
| Olive * | 72 | Medium |
| Birch | 0 | Low |
| Privet | 0 | Low |
| Alder | 0 | Low |
| Maple | 52 | High |
| Mugwort | 0 | Low |
| Composites | 1 | Low |
| Hazel | 0 | Low |
| Heather | 2 | Low |
| Eucalyptus | 0 | Low |
| Ash | 0 | Low |
| Mulberry | 3 | Low |
| Elm | 0 | Low |
| Pine | 14 | Low |
| Poplar | 0 | Low |
| Oak | 255 | Very high |
| Sorrel | 3 | Low |
| Willow | 6 | Low |
| Nettle | 1 | Low |
| Other | 4 | No data |
| Unidentified | 8 | No data |