Alcalá de Henares — March 1997

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2,125 London Plane — day 19
1,665 London Plane — day 18
1,244 London Plane — day 22
31 Days measured
Daily pollen level evolution
Day Cypress/Yew London Plane Grasses Plantain Olive
1 85 (Medium) 0 (Low) 3 (Low) 0 (Low) 0 (Low)
2 147 (High) 0 (Low) 5 (Low) 0 (Low) 0 (Low)
3 67 (Medium) 0 (Low) 1 (Low) 0 (Low) 0 (Low)
4 29 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low)
5 20 (Low) 0 (Low) 3 (Low) 0 (Low) 0 (Low)
6 11 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low)
7 12 (Low) 3 (Low) 2 (Low) 0 (Low) 0 (Low)
8 46 (Medium) 18 (Low) 2 (Low) 0 (Low) 0 (Low)
9 28 (Low) 29 (Low) 1 (Low) 0 (Low) 0 (Low)
10 13 (Low) 66 (Medium) 2 (Low) 0 (Low) 0 (Low)
11 11 (Low) 82 (Medium) 1 (Low) 0 (Low) 0 (Low)
12 8 (Low) 324 (Very high) 6 (Low) 0 (Low) 0 (Low)
13 22 (Low) 500 (Very high) 3 (Low) 0 (Low) 0 (Low)
14 18 (Low) 528 (Very high) 6 (Low) 0 (Low) 0 (Low)
15 20 (Low) 939 (Very high) 18 (Low) 0 (Low) 0 (Low)
16 6 (Low) 951 (Very high) 19 (Low) 0 (Low) 0 (Low)
17 6 (Low) 1,234 (Very high) 11 (Low) 0 (Low) 0 (Low)
18 6 (Low) 1,665 (Very high) 16 (Low) 0 (Low) 0 (Low)
19 16 (Low) 2,125 (Very high) 12 (Low) 0 (Low) 0 (Low)
20 7 (Low) 666 (Very high) 1 (Low) 1 (Low) 0 (Low)
21 6 (Low) 921 (Very high) 6 (Low) 0 (Low) 0 (Low)
22 14 (Low) 1,244 (Very high) 15 (Low) 0 (Low) 0 (Low)
23 11 (Low) 352 (Very high) 7 (Low) 0 (Low) 0 (Low)
24 13 (Low) 271 (High) 10 (Low) 0 (Low) 0 (Low)
25 8 (Low) 140 (High) 11 (Low) 0 (Low) 0 (Low)
26 3 (Low) 50 (Medium) 3 (Low) 0 (Low) 0 (Low)
27 9 (Low) 88 (Medium) 8 (Low) 0 (Low) 0 (Low)
28 16 (Low) 257 (High) 7 (Low) 1 (Low) 0 (Low)
29 11 (Low) 90 (Medium) 6 (Low) 1 (Low) 0 (Low)
30 10 (Low) 74 (Medium) 5 (Low) 4 (Low) 0 (Low)
31 7 (Low) 90 (Medium) 6 (Low) 3 (Low) 0 (Low)