Previous Madrid-Ciudad Universitaria — 27 February 2023 Next | Type | Value (grains/m³) | Level |
| Cypress/Yew * | 55 | Medium |
| London Plane * | 0 | Low |
| Grasses * | 1 | Low |
| Plantain * | 0 | Low |
| Olive * | 0 | Low |
| Birch | 0 | Low |
| Privet | 0 | Low |
| Alder | 4 | Low |
| Maple | 0 | Low |
| Mugwort | 0 | Low |
| Chestnut | 0 | Low |
| Composites | 1 | Low |
| Hazel | 2 | Low |
| Heather | 0 | Low |
| Eucalyptus | 0 | Low |
| Ash | 17 | Medium |
| Mulberry | 0 | Low |
| Elm | 25 | Medium |
| Pine | 1 | Low |
| Poplar | 7 | Low |
| Goosefoot/Amaranth | 0 | Low |
| Oak | 0 | Low |
| Sorrel | 0 | Low |
| Willow | 1 | Low |
| Nettle | 2 | Low |
| Other | 0 | No data |
| Unidentified | 4 | No data |