London Plane
Thresholds
Low 0 — 29 grains/m³
Medium 30 — 99 grains/m³
High 100 — 299 grains/m³
Very high 300 + grains/m³
Levels by station (Sunday, March 22, 2026)
| Station | Mar 22 | Mar 21 |
|---|---|---|
| Alcalá de Henares | 975 Very high | 134 High |
| Alcobendas | 393 Very high | 56 Medium |
| Aranjuez | 266 High | 37 Medium |
| Collado Villalba | 4 Low | 5 Low |
| Coslada | 646 Very high | — No data |
| Getafe | 833 Very high | 604 Very high |
| Las Rozas | 5 Low | 1 Low |
| Leganés | 0 Low | — No data |
| Madrid-Arganzuela | 1.014 Very high | 43 Medium |
| Madrid-Barrio Salamanca | 700 Very high | 97 Medium |
| Madrid-Ciudad Universitaria | 1.132 Very high | 108 High |
Trend — last 30 days
Not enough data to generate the chart.