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Alcobendas — 2026
| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive | Birch | Privet | Alder | Maple | Mugwort | Chestnut | Composites | Hazel | Heather | Eucalyptus | Ash | Mulberry | Elm | Pine | Poplar | Goosefoot/Amaranth | Oak | Sorrel | Willow | Nettle | Other | Unidentified |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| January | 392 (Very high) | 0 (Low) | 4 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 11 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 21 (Medium) | 0 (Low) | 3 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 17 (Medium) | 0 (Low) | 0 (Low) | 2 (Low) | 0 | 6 |
| February | 3,306 (Very high) | 0 (Low) | 35 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 11 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 148 (Very high) | 2 (Low) | 213 (Very high) | 2 (Low) | 139 (Very high) | 0 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 17 (Medium) | 4 | 7 |
| March | 891 (Very high) | 3,390 (Very high) | 32 (Medium) | 5 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 2 (Low) | 67 (High) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 15 (Medium) | 103 (Very high) | 45 (Medium) | 9 (Low) | 213 (Very high) | 1 (Low) | 85 (High) | 4 (Low) | 91 (High) | 15 (Medium) | 18 | 20 |
| April | 32 (Medium) | 972 (Very high) | 102 (High) | 32 (Medium) | 1,015 (Very high) | 4 (Low) | 4 (Low) | 0 (Low) | 482 (Very high) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 4 (Low) | 1 (Low) | 2 (Low) | 389 (Very high) | 1 (Low) | 310 (Very high) | 20 (Medium) | 11 (Low) | 1,033 (Very high) | 8 (Low) | 8 (Low) | 24 (Medium) | 15 | 46 |
| May | 30 (Medium) | 17 (Low) | 122 (High) | 57 (High) | 420 (Very high) | 10 (Low) | 1 (Low) | 0 (Low) | 8 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 122 (Very high) | 1 (Low) | 9 (Low) | 269 (Very high) | 14 (Low) | 1 (Low) | 14 (Low) | 17 | 36 |
| June | — | — | — | 42 (Medium) | 80 (Medium) | 2 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | — | 15 (Medium) | 0 (Low) | 4 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 86 (High) | 0 (Low) | — | 101 (Very high) | 19 (Medium) | 0 (Low) | 15 (Medium) | 20 | 15 |
| July | — | — | — | 5 (Low) | 8 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | — | 8 (Low) | 0 (Low) | 1 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 15 (Medium) | 0 (Low) | — | 40 (Medium) | 1 (Low) | 0 (Low) | 3 (Low) | 6 | 16 |
| August | — | — | — | 4 (Low) | 5 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | — | 3 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 9 (Low) | 0 (Low) | — | 12 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 3 | 7 |
| September | — | — | — | 3 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | — | 6 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | — | 7 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 2 | 7 |
| October | — | — | — | 3 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | — | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 12 (Low) | 0 (Low) | — | 15 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 2 | 6 |
| November | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| December | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |