| Type | Value (grains/m³) | Level |
|---|---|---|
| Cypress/Yew * | 6 | Low |
| London Plane * | 76 | Medium |
| Grasses * | 3 | Low |
| Plantain * | 0 | Low |
| Olive * | 0 | Low |
| Birch | 0 | Low |
| Privet | 0 | Low |
| Alder | 0 | Low |
| Mugwort | 0 | Low |
| Chestnut | 0 | Low |
| Composites | 0 | Low |
| Hazel | 1 | Low |
| Heather | 0 | Low |
| Eucalyptus | — | No data |
| Ash | 0 | Low |
| Mulberry | 0 | Low |
| Elm | 9 | Low |
| Pine | 0 | Low |
| Poplar | 35 | Medium |
| Goosefoot/Amaranth | 0 | Low |
| Oak | 10 | Low |
| Sorrel | 1 | Low |
| Willow | 1 | Low |
| Nettle | 6 | Low |
| Unidentified | 7 | No data |