Alcalá de Henares — April 1997

Main only
364 Oak — day 17
266 Oak — day 27
222 Oak — day 14
27 Days measured
Daily pollen level evolution
Day Cypress/Yew London Plane Grasses Plantain Olive Birch Privet Alder Mugwort Chestnut Composites Hazel Heather Eucalyptus Ash Mulberry Elm Pine Poplar Goosefoot/Amaranth Oak Sorrel Willow Nettle Unidentified
1 5 (Low) 113 (High) 2 (Low) 2 (Low) 0 (Low) 2 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 24 (Medium) 1 (Low) 8 (Low) 3 (Low) 0 (Low) 78 (High) 0 (Low) 2 (Low) 9 (Low) 20
2 4 (Low) 46 (Medium) 5 (Low) 4 (Low) 0 (Low) 2 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 16 (Medium) 0 (Low) 2 (Low) 1 (Low) 0 (Low) 56 (High) 1 (Low) 1 (Low) 9 (Low) 9
3 9 (Low) 73 (Medium) 5 (Low) 1 (Low) 1 (Low) 2 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 19 (Medium) 1 (Low) 4 (Low) 2 (Low) 2 (Low) 64 (High) 1 (Low) 1 (Low) 8 (Low) 16
4 7 (Low) 68 (Medium) 3 (Low) 0 (Low) 0 (Low) 4 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 18 (Medium) 1 (Low) 11 (Low) 4 (Low) 0 (Low) 49 (Medium) 0 (Low) 0 (Low) 2 (Low) 12
5 3 (Low) 15 (Low) 2 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 16 (Medium) 0 (Low) 3 (Low) 0 (Low) 0 (Low) 31 (Medium) 0 (Low) 1 (Low) 5 (Low) 11
6 8 (Low) 36 (Medium) 3 (Low) 0 (Low) 1 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 9 (Low) 0 (Low) 6 (Low) 1 (Low) 0 (Low) 70 (High) 0 (Low) 1 (Low) 8 (Low) 12
7 — — — — — — — — — — — — — — — — — — — — — — — — —
8 — — — — — — — — — — — — — — — — — — — — — — — — —
9 2 (Low) 10 (Low) 2 (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) 6 (Low) 0 (Low) 0 (Low) 45 (Medium) 0 (Low) 0 (Low) 3 (Low) 9
10 1 (Low) 2 (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) 11 (Low) 0 (Low) 0 (Low) 47 (Medium) 0 (Low) 0 (Low) 4 (Low) 2
11 2 (Low) 2 (Low) 2 (Low) 2 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 2 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 34 (Medium) 0 (Low) 0 (Low) 2 (Low) 2
12 25 (Low) 6 (Low) 2 (Low) 2 (Low) 0 (Low) 1 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 2 (Low) 0 (Low) 2 (Low) 8 (Low) 0 (Low) 18 (Medium) 0 (Low) 0 (Low) 95 (High) 0 (Low) 11 (Low) 3 (Low) 11
13 18 (Low) 3 (Low) 4 (Low) 3 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 5 (Low) 1 (Low) 8 (Low) 1 (Low) 1 (Low) 106 (Very high) 0 (Low) 0 (Low) 5 (Low) 14
14 9 (Low) 2 (Low) 2 (Low) 1 (Low) 1 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 4 (Low) 0 (Low) 3 (Low) 1 (Low) 1 (Low) 222 (Very high) 0 (Low) 0 (Low) 6 (Low) 10
15 1 (Low) 0 (Low) 3 (Low) 2 (Low) 1 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 4 (Low) 0 (Low) 6 (Low) 1 (Low) 3 (Low) 197 (Very high) 0 (Low) 1 (Low) 3 (Low) 8
16 17 (Low) 2 (Low) 5 (Low) 6 (Low) 6 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 3 (Low) 0 (Low) 0 (Low) 9 (Low) 0 (Low) 6 (Low) 1 (Low) 0 (Low) 218 (Very high) 1 (Low) 0 (Low) 8 (Low) 14
17 9 (Low) 4 (Low) 4 (Low) 7 (Low) 18 (Low) 0 (Low) 1 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 2 (Low) 0 (Low) 0 (Low) 5 (Low) 1 (Low) 5 (Low) 1 (Low) 1 (Low) 364 (Very high) 0 (Low) 0 (Low) 6 (Low) 20
18 12 (Low) 1 (Low) 4 (Low) 0 (Low) 4 (Low) 1 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 2 (Low) 0 (Low) 25 (Medium) 0 (Low) 0 (Low) 66 (High) 1 (Low) 0 (Low) 2 (Low) 21
19 2 (Low) 1 (Low) 0 (Low) 1 (Low) 3 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 12 (Low) 0 (Low) 0 (Low) 28 (Medium) 0 (Low) 1 (Low) 2 (Low) 13
20 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) 0 (Low) 3 (Low) 0 (Low) 0 (Low) 11 (Low) 0 (Low) 0 (Low) 0 (Low) 3
21 5 (Low) 2 (Low) 2 (Low) 1 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 22 (Medium) 0 (Low) 0 (Low) 52 (High) 0 (Low) 1 (Low) 2 (Low) 6
22 2 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 3 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 14 (Low) 0 (Low) 1 (Low) 80 (High) 0 (Low) 1 (Low) 2 (Low) 6
23 4 (Low) 0 (Low) 7 (Low) 9 (Low) 4 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 5 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 44 (Medium) 1 (Low) 0 (Low) 82 (High) 1 (Low) 0 (Low) 1 (Low) 7
24 1 (Low) 0 (Low) 8 (Low) 6 (Low) 48 (Low) 0 (Low) 3 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 2 (Low) 0 (Low) 35 (Medium) 0 (Low) 0 (Low) 62 (High) 1 (Low) 0 (Low) 0 (Low) 10
25 1 (Low) 0 (Low) 4 (Low) 6 (Low) 32 (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) 12 (Low) 0 (Low) 0 (Low) 22 (Medium) 1 (Low) 0 (Low) 4 (Low) 11
26 1 (Low) 0 (Low) 5 (Low) 6 (Low) 42 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 5 (Low) 1 (Low) 133 (Very high) 0 (Low) 0 (Low) 102 (Very high) 1 (Low) 0 (Low) 6 (Low) 25
27 4 (Low) 0 (Low) 4 (Low) 4 (Low) 24 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 2 (Low) 0 (Low) 5 (Low) 0 (Low) 0 (Low) 266 (Very high) 2 (Low) 0 (Low) 4 (Low) 16
28 2 (Low) 0 (Low) 2 (Low) 10 (Low) 0 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 8 (Low) 0 (Low) 0 (Low) 2 (Low) 0 (Low) 21 (Medium) 0 (Low) 0 (Low) 112 (Very high) 1 (Low) 0 (Low) 3 (Low) 6
29 37 (Medium) 0 (Low) 2 (Low) 4 (Low) 4 (Low) 1 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 2 (Low) 0 (Low) 0 (Low) 0 (Low) 0 (Low) 35 (Medium) 0 (Low) 0 (Low) 144 (Very high) 1 (Low) 0 (Low) 8 (Low) 7
30 — — — — — — — — — — — — — — — — — — — — — — — — —