Grasses
Thresholds
Low 0 — 29 grains/m³
Medium 30 — 83 grains/m³
High 84 — 150 grains/m³
Very high 151 + grains/m³
Levels by station (Sunday, March 22, 2026)
| Station | Mar 22 | Mar 21 |
|---|---|---|
| Alcalá de Henares | 1 Low | 0 Low |
| Alcobendas | 2 Low | 1 Low |
| Aranjuez | 0 Low | 0 Low |
| Collado Villalba | 1 Low | 0 Low |
| Coslada | 6 Low | — No data |
| Getafe | 3 Low | 2 Low |
| Las Rozas | 0 Low | 1 Low |
| Leganés | 0 Low | — No data |
| Madrid-Arganzuela | 6 Low | 0 Low |
| Madrid-Barrio Salamanca | 4 Low | 0 Low |
| Madrid-Ciudad Universitaria | 5 Low | 3 Low |