Las Rozas — 2009 Siguiente
| Mes | Cupresáceas/ | Plátano de p | Gramíneas | Plantago | Olivo | Abedul | Aligustre | Aliso | Arce | Artemisia | Castaño | Compuestas | Corylus | Ericáceas | Eucalipto | Fresno | Moreras | Olmos | Pinos | Populus | Quenopodiáce | Quercus | Rumex | Sauces | Urticáceas | Otros | PNI |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Enero | 436 | 5 | 11 | 0 | 0 | 1 | 0 | 22 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 33 | 0 | 5 | 1 | 5 | 0 | 3 | 1 | 0 | 3 | — | 60 |
| Febrero | 371 | 2 | 27 | 0 | 0 | 3 | 0 | 11 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 242 | 0 | 60 | 2 | 112 | 0 | 2 | 0 | 1 | 7 | — | 41 |
| Marzo | 456 | 801 | 24 | 8 | 1 | 6 | 0 | 2 | 90 | 0 | 0 | 1 | 49 | 1 | 0 | 43 | 17 | 2 | 195 | 159 | 1 | 62 | 1 | 23 | 33 | 5 | 31 |
| Abril | 17 | 206 | 11 | 23 | 2 | 4 | 0 | 0 | 184 | 0 | 0 | 1 | 4 | 9 | 0 | 4 | 16 | 1 | 50 | 14 | 1 | 2.284 | 15 | 12 | 8 | 11 | 38 |
| Mayo | 34 | 3 | 137 | 38 | 715 | 1 | 0 | 0 | 2 | 0 | 0 | 11 | 3 | 6 | 1 | 0 | 3 | 1 | 178 | 1 | 10 | 1.492 | 41 | 3 | 10 | 8 | 47 |
| Junio | 19 | 1 | 75 | 17 | 61 | 0 | 0 | 0 | 0 | 0 | 33 | 5 | 1 | 9 | 2 | 0 | 2 | 0 | 325 | 0 | 4 | 205 | 18 | 1 | 16 | 11 | 12 |
| Julio | 4 | 1 | 37 | 6 | 6 | 1 | 1 | 0 | 1 | 1 | 21 | 4 | 0 | 1 | 61 | 0 | 3 | 0 | 9 | 0 | 6 | 12 | 4 | 1 | 9 | 6 | 10 |
| Agosto | 2 | 0 | 7 | 2 | 3 | 1 | 0 | 0 | 0 | 9 | 2 | 2 | 0 | 1 | 1 | 0 | 2 | 0 | 3 | 0 | 16 | 14 | 2 | 0 | 2 | 3 | 5 |
| Septiembre | 2 | 1 | 6 | 1 | 1 | 0 | 0 | 0 | 0 | 12 | 1 | 3 | 0 | 1 | 0 | 0 | 0 | 0 | 2 | 0 | 18 | 9 | 1 | 0 | 2 | 3 | 6 |
| Octubre | 31 | 2 | 2 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 | 1 | 0 | 0 | 2 | 0 | 1 | 7 | 0 | 0 | 2 | 1 | 4 |
| Noviembre | 18 | 2 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 9 | 1 | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 3 | 0 | 2 | 4 | 0 | 0 | 2 | 1 | 4 |
| Diciembre | 31 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 2 | 0 | 0 | 1 | 0 | 1 |