| Type | Value (grains/m³) | Level |
|---|---|---|
| Plantain * | 0 | Low |
| Olive * | 0 | Low |
| Birch | 2 | Low |
| Privet | 0 | Low |
| Alder | 1 | Low |
| Maple | 7 | Low |
| Mugwort | 0 | Low |
| Composites | 0 | Low |
| Hazel | 0 | Low |
| Heather | 0 | Low |
| Eucalyptus | 0 | Low |
| Ash | 1 | Low |
| Mulberry | 65 | High |
| Elm | 1 | Low |
| Pine | 17 | Medium |
| Poplar | 20 | Medium |
| Oak | 2 | Low |
| Sorrel | 1 | Low |
| Willow | 8 | Low |
| Nettle | 17 | Medium |
| Other | 10 | No data |
| Unidentified | 16 | No data |