| Type | Value (grains/m³) | Level |
|---|---|---|
| Cypress/Yew * | 5 | Low |
| London Plane * | 55 | Medium |
| Grasses * | 0 | Low |
| Plantain * | 1 | Low |
| Olive * | 0 | Low |
| Birch | 9 | Low |
| Privet | 0 | Low |
| Alder | 0 | Low |
| Mugwort | 0 | Low |
| Chestnut | 0 | Low |
| Composites | 0 | Low |
| Hazel | 0 | Low |
| Heather | 1 | Low |
| Eucalyptus | — | No data |
| Ash | 0 | Low |
| Mulberry | 18 | Medium |
| Elm | 0 | Low |
| Pine | 5 | Low |
| Poplar | 1 | Low |
| Goosefoot/Amaranth | 0 | Low |
| Oak | 2 | Low |
| Sorrel | 0 | Low |
| Willow | 2 | Low |
| Nettle | 0 | Low |
| Unidentified | 59 | No data |