| Type | Value (grains/m³) | Level |
|---|---|---|
| Plantain * | 14 | Low |
| Olive * | 282 | High |
| Birch | 0 | Low |
| Privet | 1 | Low |
| Alder | 0 | Low |
| Maple | 25 | Medium |
| Mugwort | 0 | Low |
| Composites | 2 | Low |
| Hazel | 0 | Low |
| Heather | 0 | Low |
| Eucalyptus | 0 | Low |
| Ash | 0 | Low |
| Mulberry | 5 | Low |
| Elm | 0 | Low |
| Pine | 9 | Low |
| Poplar | 0 | Low |
| Oak | 206 | Very high |
| Sorrel | 3 | Low |
| Willow | 0 | Low |
| Nettle | 0 | Low |
| Other | 16 | No data |
| Unidentified | 20 | No data |