Las Rozas — March 2026

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1,801 London Plane — day 25
937 London Plane — day 28
919 London Plane — day 24
31 Days measured
Daily pollen level evolution
Day Cypress/Yew London Plane Grasses Plantain Olive
1 300 (Very high) 0 (Low) 1 (Low) 0 (Low) 0 (Low)
2 159 (High) 0 (Low) 1 (Low) 0 (Low) 0 (Low)
3 149 (High) 0 (Low) 2 (Low) 0 (Low) 0 (Low)
4 116 (High) 0 (Low) 0 (Low) 0 (Low) 0 (Low)
5 85 (Medium) 0 (Low) 0 (Low) 0 (Low) 0 (Low)
6 16 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low)
7 8 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low)
8 6 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low)
9 7 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low)
10 5 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low)
11 13 (Low) 0 (Low) 3 (Low) 0 (Low) 0 (Low)
12 85 (Medium) 0 (Low) 2 (Low) 0 (Low) 0 (Low)
13 210 (Very high) 0 (Low) 6 (Low) 0 (Low) 0 (Low)
14 21 (Low) 0 (Low) 2 (Low) 0 (Low) 0 (Low)
15 6 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low)
16 6 (Low) 0 (Low) 2 (Low) 0 (Low) 0 (Low)
17 19 (Low) 6 (Low) 2 (Low) 0 (Low) 0 (Low)
18 18 (Low) 10 (Low) 2 (Low) 0 (Low) 0 (Low)
19 4 (Low) 51 (Medium) 5 (Low) 1 (Low) 0 (Low)
20 5 (Low) 96 (Medium) 1 (Low) 0 (Low) 0 (Low)
21 4 (Low) 1 (Low) 1 (Low) 1 (Low) 0 (Low)
22 1 (Low) 5 (Low) 0 (Low) 0 (Low) 0 (Low)
23 19 (Low) 12 (Low) 1 (Low) 0 (Low) 0 (Low)
24 6 (Low) 919 (Very high) 1 (Low) 0 (Low) 0 (Low)
25 9 (Low) 1,801 (Very high) 5 (Low) 1 (Low) 0 (Low)
26 13 (Low) 190 (High) 2 (Low) 0 (Low) 0 (Low)
27 2 (Low) 319 (Very high) 1 (Low) 1 (Low) 0 (Low)
28 22 (Low) 937 (Very high) 2 (Low) 1 (Low) 0 (Low)
29 7 (Low) 159 (High) 1 (Low) 2 (Low) 0 (Low)
30 5 (Low) 155 (High) 2 (Low) 1 (Low) 0 (Low)
31 5 (Low) 444 (Very high) 2 (Low) 2 (Low) 0 (Low)