Madrid-Arganzuela — March 2008

1,031 London Plane — day 19

817 London Plane — day 20

617 London Plane — day 30

31 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	22 (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)	0 (Low)	0 (Low)	0 (Low)	1 (Low)	36 (Medium)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	1
2	137 (High)	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)	6 (Low)	0 (Low)	1 (Low)	0 (Low)	70 (High)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0
3	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
4	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
5	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
6	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
7	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
8	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
9	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
10	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
11	53 (Medium)	5 (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)	63 (High)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	3 (Low)	1
12	108 (High)	20 (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)	54 (High)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	10 (Low)	0
13	22 (Low)	63 (Medium)	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)	21 (Medium)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0
14	11 (Low)	158 (High)	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)	4 (Low)	0 (Low)	1 (Low)	15 (Medium)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	3 (Low)	2
15	39 (Medium)	595 (Very high)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	2 (Low)	2 (Low)	0 (Low)	0 (Low)	3 (Low)	0 (Low)	5 (Low)	65 (High)	0 (Low)	0 (Low)	1 (Low)	0 (Low)	0 (Low)	0
16	21 (Low)	186 (High)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	1 (Low)	1 (Low)	0 (Low)	0 (Low)	1 (Low)	0 (Low)	1 (Low)	27 (Medium)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	1 (Low)	0
17	5 (Low)	358 (Very high)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	2 (Low)	0 (Low)	0 (Low)	0 (Low)	2 (Low)	5 (Low)	2 (Low)	5 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0
18	8 (Low)	339 (Very high)	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)	2 (Low)	5 (Low)	2 (Low)	4 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0
19	8 (Low)	1,031 (Very high)	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)	5 (Low)	0 (Low)	30 (Medium)	4 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0
20	17 (Low)	817 (Very high)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	1 (Low)	0 (Low)	0 (Low)	0 (Low)	12 (Low)	0 (Low)	15 (Medium)	12 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	5 (Low)	0
21	13 (Low)	583 (Very high)	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)	5 (Low)	3 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0
22	31 (Medium)	449 (Very high)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	1 (Low)	0 (Low)	0 (Low)	0 (Low)	3 (Low)	0 (Low)	2 (Low)	1 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0
23	13 (Low)	222 (High)	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)	1 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0
24	2 (Low)	158 (High)	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)	1 (Low)	0 (Low)	0 (Low)	5 (Low)	0 (Low)	1 (Low)	0 (Low)	0 (Low)	2 (Low)	0
25	7 (Low)	306 (Very high)	0 (Low)	0 (Low)	0 (Low)	2 (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)	13 (Low)	0 (Low)	2 (Low)	0 (Low)	0 (Low)	1 (Low)	0
26	22 (Low)	603 (Very high)	0 (Low)	0 (Low)	0 (Low)	3 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	7 (Low)	0 (Low)	1 (Low)	14 (Low)	0 (Low)	7 (Low)	0 (Low)	0 (Low)	4 (Low)	0
27	2 (Low)	245 (High)	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)	5 (Low)	0 (Low)	1 (Low)	13 (Low)	0 (Low)	2 (Low)	0 (Low)	0 (Low)	4 (Low)	2
28	5 (Low)	304 (Very high)	0 (Low)	0 (Low)	0 (Low)	2 (Low)	0 (Low)	1 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	12 (Low)	0 (Low)	2 (Low)	13 (Low)	0 (Low)	5 (Low)	0 (Low)	0 (Low)	8 (Low)	0
29	7 (Low)	536 (Very high)	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)	13 (Low)	1 (Low)	0 (Low)	13 (Low)	0 (Low)	7 (Low)	0 (Low)	0 (Low)	7 (Low)	1
30	9 (Low)	617 (Very high)	0 (Low)	0 (Low)	0 (Low)	4 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)	14 (Low)	0 (Low)	4 (Low)	8 (Low)	0 (Low)	32 (Medium)	1 (Low)	0 (Low)	1 (Low)	3
31	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—