Madrid-Barrio Salamanca — March 2002

1,206 London Plane — day 25

838 London Plane — day 24

624 London Plane — day 27

28 Days measured

Daily pollen level evolution
Day	Cypress/Yew	London Plane	Grasses	Plantain	Olive
1	41 (Medium)	0 (Low)	1 (Low)	0 (Low)	0 (Low)
2	—	—	—	—	—
3	—	—	—	—	—
4	0 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)
5	17 (Low)	1 (Low)	0 (Low)	0 (Low)	0 (Low)
6	10 (Low)	0 (Low)	0 (Low)	0 (Low)	0 (Low)
7	—	—	—	—	—
8	74 (Medium)	0 (Low)	6 (Low)	0 (Low)	0 (Low)
9	416 (Very high)	0 (Low)	7 (Low)	0 (Low)	0 (Low)
10	156 (High)	0 (Low)	10 (Low)	0 (Low)	0 (Low)
11	32 (Medium)	0 (Low)	16 (Low)	1 (Low)	0 (Low)
12	23 (Low)	0 (Low)	22 (Low)	0 (Low)	0 (Low)
13	5 (Low)	0 (Low)	2 (Low)	0 (Low)	0 (Low)
14	1 (Low)	0 (Low)	0 (Low)	4 (Low)	0 (Low)
15	0 (Low)	0 (Low)	0 (Low)	0 (Low)	2 (Low)
16	1 (Low)	6 (Low)	0 (Low)	1 (Low)	1 (Low)
17	2 (Low)	0 (Low)	0 (Low)	1 (Low)	0 (Low)
18	7 (Low)	0 (Low)	4 (Low)	3 (Low)	0 (Low)
19	33 (Medium)	0 (Low)	11 (Low)	4 (Low)	2 (Low)
20	6 (Low)	0 (Low)	11 (Low)	0 (Low)	0 (Low)
21	11 (Low)	11 (Low)	7 (Low)	0 (Low)	0 (Low)
22	4 (Low)	28 (Low)	7 (Low)	0 (Low)	0 (Low)
23	5 (Low)	304 (Very high)	11 (Low)	0 (Low)	0 (Low)
24	5 (Low)	838 (Very high)	36 (Medium)	1 (Low)	0 (Low)
25	8 (Low)	1,206 (Very high)	25 (Low)	0 (Low)	0 (Low)
26	1 (Low)	519 (Very high)	12 (Low)	1 (Low)	0 (Low)
27	6 (Low)	624 (Very high)	5 (Low)	0 (Low)	0 (Low)
28	10 (Low)	516 (Very high)	3 (Low)	1 (Low)	0 (Low)
29	7 (Low)	310 (Very high)	7 (Low)	0 (Low)	0 (Low)
30	1 (Low)	256 (High)	25 (Low)	0 (Low)	0 (Low)
31	0 (Low)	458 (Very high)	17 (Low)	0 (Low)	0 (Low)