Collado Villalba — April 2026

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229 London Plane — day 5
222 London Plane — day 6
140 London Plane — day 7
29 Days measured
Daily pollen level evolution
Day Cypress/Yew London Plane Grasses Plantain Olive
1 11 (Low) 6 (Low) 4 (Low) 0 (Low) 0 (Low)
2 0 (Low) 10 (Low) 2 (Low) 1 (Low) 0 (Low)
3 1 (Low) 16 (Low) 1 (Low) 0 (Low) 0 (Low)
4 1 (Low) 39 (Medium) 2 (Low) 0 (Low) 0 (Low)
5 6 (Low) 229 (High) 1 (Low) 1 (Low) 0 (Low)
6 7 (Low) 222 (High) 5 (Low) 1 (Low) 0 (Low)
7 6 (Low) 140 (High) 2 (Low) 2 (Low) 0 (Low)
8 3 (Low) 42 (Medium) 2 (Low) 0 (Low) 0 (Low)
9 10 (Low) 36 (Medium) 6 (Low) 4 (Low) 0 (Low)
10 2 (Low) 14 (Low) 1 (Low) 0 (Low) 1 (Low)
11 1 (Low) 5 (Low) 2 (Low) 0 (Low) 0 (Low)
12 1 (Low) 4 (Low) 1 (Low) 1 (Low) 0 (Low)
13 0 (Low) 1 (Low) 4 (Low) 0 (Low) 0 (Low)
14 2 (Low) 4 (Low) 6 (Low) 0 (Low) 0 (Low)
15 1 (Low) 2 (Low) 8 (Low) 1 (Low) 0 (Low)
16 2 (Low) 3 (Low) 9 (Low) 2 (Low) 1 (Low)
17 2 (Low) 1 (Low) 7 (Low) 2 (Low) 0 (Low)
18 2 (Low) 3 (Low) 6 (Low) 1 (Low) 0 (Low)
19 1 (Low) 2 (Low) 5 (Low) 0 (Low) 0 (Low)
20 1 (Low) 0 (Low) 5 (Low) 3 (Low) 0 (Low)
21 2 (Low) 2 (Low) 4 (Low) 2 (Low) 3 (Low)
22 1 (Low) 0 (Low) 5 (Low) 3 (Low) 3 (Low)
23 1 (Low) 3 (Low) 1 (Low) 2 (Low) 0 (Low)
24 1 (Low) 0 (Low) 5 (Low) 2 (Low) 6 (Low)
25 2 (Low) 2 (Low) 4 (Low) 0 (Low) 1 (Low)
26 1 (Low) 0 (Low) 3 (Low) 1 (Low) 0 (Low)
27 1 (Low) 0 (Low) 2 (Low) 3 (Low) 0 (Low)
28 0 (Low) 0 (Low) 2 (Low) 2 (Low) 1 (Low)
29 1 (Low) 1 (Low) 4 (Low) 0 (Low) 1 (Low)
30 — — — — —