Las Rozas — April 2026

Main only
1,397 Oak — day 19
1,234 Oak — day 16
1,220 Oak — day 18
26 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 5 (Low) 346 (Very high) 2 (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) 13 (Low) 0 (Low) 2 (Low) 2 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 2 (Low) 7 0
2 — — — — — — — — — — — — — — — — — — — — — — — — — — —
3 — — — — — — — — — — — — — — — — — — — — — — — — — — —
4 — — — — — — — — — — — — — — — — — — — — — — — — — — —
5 — — — — — — — — — — — — — — — — — — — — — — — — — — —
6 3 (Low) 185 (High) 6 (Low) 4 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 4 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 87 (High) 1 (Low) 16 (Medium) 1 (Low) 0 (Low) 11 (Low) 0 (Low) 2 (Low) 20 (Medium) 5 2
7 6 (Low) 191 (High) 4 (Low) 4 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 108 (Very high) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 32 (Medium) 0 (Low) 4 (Low) 1 (Low) 0 (Low) 34 (Medium) 2 (Low) 0 (Low) 19 (Medium) 14 6
8 2 (Low) 193 (High) 2 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 3 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 6 (Low) 0 (Low) 2 (Low) 1 (Low) 0 (Low) 5 (Low) 0 (Low) 1 (Low) 3 (Low) 7 1
9 1 (Low) 22 (Low) 6 (Low) 1 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 2 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 18 (Medium) 0 (Low) 1 (Low) 0 (Low) 1 (Low) 5 (Low) 0 (Low) 0 (Low) 3 (Low) 5 2
10 3 (Low) 44 (Medium) 4 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 24 (Medium) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 25 (Medium) 0 (Low) 3 (Low) 1 (Low) 1 (Low) 10 (Low) 0 (Low) 1 (Low) 9 (Low) 8 4
11 3 (Low) 48 (Medium) 3 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 73 (High) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 19 (Medium) 0 (Low) 2 (Low) 0 (Low) 0 (Low) 49 (Medium) 1 (Low) 0 (Low) 6 (Low) 15 1
12 7 (Low) 42 (Medium) 3 (Low) 0 (Low) 0 (Low) 2 (Low) 0 (Low) 0 (Low) 88 (High) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 16 (Medium) 0 (Low) 7 (Low) 0 (Low) 0 (Low) 486 (Very high) 0 (Low) 0 (Low) 2 (Low) 9 2
13 2 (Low) 17 (Low) 6 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 12 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 1 (Low) 0 (Low) 2 (Low) 0 (Low) 10 (Low) 0 (Low) 0 (Low) 22 (Medium) 0 (Low) 0 (Low) 1 (Low) 3 0
14 1 (Low) 24 (Low) 4 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 117 (Very high) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 4 (Low) 0 (Low) 2 (Low) 0 (Low) 0 (Low) 130 (Very high) 0 (Low) 2 (Low) 0 (Low) 5 2
15 2 (Low) 22 (Low) 7 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 132 (Very high) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 4 (Low) 0 (Low) 7 (Low) 0 (Low) 0 (Low) 826 (Very high) 1 (Low) 0 (Low) 2 (Low) 20 0
16 2 (Low) 28 (Low) 4 (Low) 4 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 98 (High) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 9 (Low) 0 (Low) 4 (Low) 0 (Low) 0 (Low) 1,234 (Very high) 0 (Low) 0 (Low) 5 (Low) 1 1
17 0 (Low) 2 (Low) 4 (Low) 3 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 110 (Very high) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 11 (Low) 0 (Low) 0 (Low) 859 (Very high) 1 (Low) 0 (Low) 3 (Low) 1 2
18 3 (Low) 18 (Low) 6 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 201 (Very high) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 12 (Low) 0 (Low) 1 (Low) 1,220 (Very high) 0 (Low) 0 (Low) 3 (Low) 5 1
19 3 (Low) 15 (Low) 7 (Low) 4 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 254 (Very high) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 16 (Medium) 0 (Low) 0 (Low) 1,397 (Very high) 1 (Low) 0 (Low) 4 (Low) 4 1
20 0 (Low) 1 (Low) 7 (Low) 4 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 375 (Very high) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 3 (Low) 0 (Low) 9 (Low) 0 (Low) 3 (Low) 596 (Very high) 2 (Low) 0 (Low) 1 (Low) 4 1
21 0 (Low) 5 (Low) 2 (Low) 1 (Low) 3 (Low) 0 (Low) 0 (Low) 0 (Low) 87 (High) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 160 (Very high) 1 (Low) 0 (Low) 0 (Low) 24 0
22 7 (Low) 3 (Low) 8 (Low) 1 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 202 (Very high) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 1 (Low) 182 (Very high) 5 (Low) 0 (Low) 0 (Low) 23 1
23 2 (Low) 3 (Low) 4 (Low) 2 (Low) 4 (Low) 0 (Low) 0 (Low) 0 (Low) 160 (Very high) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 2 (Low) 0 (Low) 2 (Low) 642 (Very high) 2 (Low) 0 (Low) 1 (Low) 84 2
24 1 (Low) 1 (Low) 6 (Low) 4 (Low) 12 (Low) 0 (Low) 0 (Low) 0 (Low) 70 (High) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 9 (Low) 0 (Low) 0 (Low) 689 (Very high) 2 (Low) 3 (Low) 0 (Low) 39 2
25 0 (Low) 0 (Low) 1 (Low) 1 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 31 (Medium) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 2 (Low) 3 (Low) 0 (Low) 0 (Low) 282 (Very high) 0 (Low) 0 (Low) 1 (Low) 0 1
26 1 (Low) 0 (Low) 4 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 113 (Very high) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 8 (Low) 0 (Low) 0 (Low) 986 (Very high) 0 (Low) 0 (Low) 1 (Low) 5 1
27 2 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 88 (High) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 18 (Medium) 0 (Low) 0 (Low) 581 (Very high) 1 (Low) 4 (Low) 3 (Low) 23 0
28 2 (Low) 1 (Low) 4 (Low) 2 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 110 (Very high) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 22 (Medium) 0 (Low) 1 (Low) 649 (Very high) 1 (Low) 0 (Low) 1 (Low) 5 0
29 1 (Low) 2 (Low) 6 (Low) 0 (Low) 3 (Low) 0 (Low) 0 (Low) 0 (Low) 41 (Medium) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 94 (High) 0 (Low) 0 (Low) 173 (Very high) 1 (Low) 0 (Low) 0 (Low) 15 0
30 0 (Low) 0 (Low) 49 (Medium) 4 (Low) 149 (Medium) 0 (Low) 0 (Low) 0 (Low) 15 (Medium) 0 (Low) 0 (Low) 2 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 13 (Low) 0 (Low) 1 (Low) 106 (Very high) 1 (Low) 0 (Low) 0 (Low) 41 0