Nettle
Family: Urticaceae Common name: Ortigas, parietaria Allergenic: No Peak season: March — September +info
Thresholds
Low 0 — 14 grains/m³
Medium 15 — 49 grains/m³
High 50 — 99 grains/m³
Very high 100 + grains/m³
Levels by station (Thursday, February 19, 2026)
| home.col_station | Feb 19 | Feb 18 |
|---|---|---|
| Alcalá de Henares | 1 Low | 18 Medium |
| Alcobendas | 0 Low | 1 Low |
| Aranjuez | 9 Low | 11 Low |
| Collado Villalba | 0 Low | 1 Low |
| Coslada | 6 Low | 1 Low |
| Getafe | 18 Medium | 9 Low |
| Las Rozas | 1 Low | 1 Low |
| Leganés | 8 Low | — No data |
| Madrid-Arganzuela | 11 Low | 6 Low |
| Madrid-Barrio Salamanca | 6 Low | 4 Low |
| Madrid-Ciudad Universitaria | 10 Low | 5 Low |