Madrid-Ciudad Universitaria — March 2026

Main only
5,678 London Plane — day 25
2,555 London Plane — day 26
1,917 London Plane — day 23
30 Days measured
Daily pollen level evolution
Day 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
1 339 (Very high) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 2 (Low) 0 (Low) 16 (Medium) 0 (Low) 315 (Very high) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 14 (Low) 0 0
2 377 (Very high) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 2 (Low) 0 (Low) 38 (Medium) 1 (Low) 355 (Very high) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 9 (Low) 1 0
3 844 (Very high) 0 (Low) 2 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 2 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 6 (Low) 0 (Low) 27 (Medium) 0 (Low) 614 (Very high) 0 (Low) 0 (Low) 1 (Low) 2 (Low) 4 (Low) 3 0
4 761 (Very high) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 4 (Low) 0 (Low) 9 (Low) 2 (Low) 323 (Very high) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 11 (Low) 2 0
5 113 (High) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 2 (Low) 0 (Low) 4 (Low) 0 (Low) 169 (Very high) 0 (Low) 0 (Low) 0 (Low) 2 (Low) 1 (Low) 2 0
6 215 (Very high) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 3 (Low) 0 (Low) 89 (High) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 0
7 58 (Medium) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 2 (Low) 0 (Low) 9 (Low) 2 (Low) 68 (High) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 0
8 29 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 3 (Low) 1 (Low) 35 (Medium) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 2 (Low) 2 0
9 39 (Medium) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 3 (Low) 0 (Low) 14 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 2 (Low) 1 0
10 4 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 22 (Medium) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 3 2
11 — — — — — — — — — — — — — — — — — — — — — — — — — — —
12 326 (Very high) 0 (Low) 6 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 8 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 2 (Low) 36 (Medium) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 15 (Medium) 6 0
13 353 (Very high) 1 (Low) 16 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 8 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 1 (Low) 1 (Low) 71 (High) 0 (Low) 0 (Low) 2 (Low) 5 (Low) 9 (Low) 18 0
14 262 (Very high) 2 (Low) 3 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 4 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 2 (Low) 0 (Low) 5 (Low) 1 (Low) 105 (Very high) 0 (Low) 0 (Low) 0 (Low) 7 (Low) 3 (Low) 14 1
15 51 (Medium) 5 (Low) 5 (Low) 0 (Low) 0 (Low) 2 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 1 (Low) 1 (Low) 77 (High) 0 (Low) 0 (Low) 0 (Low) 3 (Low) 2 (Low) 16 0
16 29 (Low) 17 (Low) 3 (Low) 0 (Low) 0 (Low) 4 (Low) 0 (Low) 0 (Low) 3 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 1 (Low) 2 (Low) 1 (Low) 91 (High) 0 (Low) 0 (Low) 0 (Low) 4 (Low) 14 (Low) 15 0
17 34 (Medium) 228 (High) 5 (Low) 1 (Low) 0 (Low) 2 (Low) 0 (Low) 0 (Low) 4 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 6 (Low) 3 (Low) 3 (Low) 78 (High) 0 (Low) 1 (Low) 1 (Low) 4 (Low) 26 (Medium) 16 0
18 26 (Low) 266 (High) 10 (Low) 1 (Low) 0 (Low) 2 (Low) 0 (Low) 0 (Low) 8 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 14 (Low) 2 (Low) 4 (Low) 28 (Medium) 0 (Low) 0 (Low) 0 (Low) 2 (Low) 22 (Medium) 18 0
19 23 (Low) 506 (Very high) 11 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 9 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 18 (Medium) 1 (Low) 7 (Low) 33 (Medium) 1 (Low) 0 (Low) 10 (Low) 0 (Low) 11 (Low) 17 0
20 17 (Low) 305 (Very high) 10 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 6 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 10 (Low) 1 (Low) 2 (Low) 17 (Medium) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 3 (Low) 4 0
21 2 (Low) 108 (High) 3 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 2 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 16 (Medium) 1 (Low) 1 (Low) 7 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 4 (Low) 1 0
22 8 (Low) 1,132 (Very high) 5 (Low) 0 (Low) 0 (Low) 3 (Low) 0 (Low) 0 (Low) 5 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 12 (Low) 4 (Low) 4 (Low) 25 (Medium) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 12 (Low) 5 0
23 47 (Medium) 1,917 (Very high) 6 (Low) 0 (Low) 0 (Low) 7 (Low) 0 (Low) 0 (Low) 7 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 18 (Medium) 0 (Low) 7 (Low) 53 (High) 0 (Low) 0 (Low) 1 (Low) 5 (Low) 6 (Low) 10 0
24 9 (Low) 1,425 (Very high) 4 (Low) 1 (Low) 0 (Low) 4 (Low) 0 (Low) 0 (Low) 6 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 45 (Medium) 1 (Low) 20 (Medium) 19 (Medium) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 11 (Low) 9 1
25 27 (Low) 5,678 (Very high) 6 (Low) 1 (Low) 0 (Low) 6 (Low) 0 (Low) 1 (Low) 14 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 81 (High) 2 (Low) 36 (Medium) 31 (Medium) 0 (Low) 0 (Low) 0 (Low) 7 (Low) 14 (Low) 37 1
26 13 (Low) 2,555 (Very high) 8 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 5 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 49 (Medium) 2 (Low) 14 (Low) 34 (Medium) 0 (Low) 0 (Low) 0 (Low) 5 (Low) 5 (Low) 6 0
27 13 (Low) 1,190 (Very high) 7 (Low) 0 (Low) 0 (Low) 4 (Low) 0 (Low) 0 (Low) 4 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 46 (Medium) 1 (Low) 33 (Medium) 22 (Medium) 0 (Low) 3 (Low) 1 (Low) 3 (Low) 2 (Low) 4 0
28 25 (Low) 1,401 (Very high) 7 (Low) 0 (Low) 0 (Low) 4 (Low) 0 (Low) 0 (Low) 9 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 135 (Very high) 1 (Low) 44 (Medium) 11 (Low) 0 (Low) 0 (Low) 0 (Low) 2 (Low) 3 (Low) 9 0
29 58 (Medium) 943 (Very high) 7 (Low) 0 (Low) 0 (Low) 7 (Low) 0 (Low) 0 (Low) 3 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 135 (Very high) 2 (Low) 27 (Medium) 7 (Low) 0 (Low) 0 (Low) 0 (Low) 4 (Low) 8 (Low) 7 1
30 7 (Low) 1,011 (Very high) 5 (Low) 1 (Low) 0 (Low) 3 (Low) 0 (Low) 0 (Low) 4 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 164 (Very high) 2 (Low) 22 (Medium) 5 (Low) 0 (Low) 0 (Low) 0 (Low) 3 (Low) 4 (Low) 5 0
31 20 (Low) 1,249 (Very high) 3 (Low) 0 (Low) 2 (Low) 5 (Low) 0 (Low) 0 (Low) 2 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 203 (Very high) 1 (Low) 9 (Low) 7 (Low) 1 (Low) 0 (Low) 0 (Low) 3 (Low) 4 (Low) 8 0