Previous Madrid-Ciudad Universitaria — 16 February 1998 Next | Type | Value (grains/m³) | Level |
| Cypress/Yew * | 605 | Very high |
| London Plane * | 0 | Low |
| Grasses * | 35 | Medium |
| 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 | 0 | Low |
| Heather | 0 | Low |
| Eucalyptus | 0 | Low |
| Ash | 43 | Medium |
| Mulberry | 0 | Low |
| Elm | 74 | High |
| Pine | 0 | Low |
| Poplar | 3 | Low |
| Goosefoot/Amaranth | 0 | Low |
| Oak | 1 | Low |
| Sorrel | 3 | Low |
| Willow | 0 | Low |
| Nettle | 7 | Low |
| Unidentified | 7 | No data |