Madrid-Arganzuela — May 1997

441 Olive — day 3

352 Olive — day 4

310 Olive — day 10

30 Days measured

Daily pollen level evolution
Day	Cypress/Yew	London Plane	Grasses	Plantain	Olive
1	17 (Low)	1 (Low)	10 (Low)	14 (Low)	45 (Low)
2	18 (Low)	1 (Low)	15 (Low)	24 (Medium)	122 (Medium)
3	7 (Low)	1 (Low)	51 (Medium)	68 (High)	441 (Very high)
4	5 (Low)	1 (Low)	78 (Medium)	73 (High)	352 (High)
5	10 (Low)	1 (Low)	63 (Medium)	47 (Medium)	308 (High)
6	5 (Low)	2 (Low)	9 (Low)	18 (Low)	38 (Low)
7	10 (Low)	0 (Low)	3 (Low)	6 (Low)	14 (Low)
8	—	—	—	—	—
9	0 (Low)	0 (Low)	13 (Low)	33 (Medium)	42 (Low)
10	3 (Low)	0 (Low)	53 (Medium)	35 (Medium)	310 (High)
11	2 (Low)	0 (Low)	45 (Medium)	70 (High)	162 (Medium)
12	1 (Low)	0 (Low)	32 (Medium)	48 (Medium)	138 (Medium)
13	1 (Low)	0 (Low)	9 (Low)	12 (Low)	82 (Medium)
14	0 (Low)	0 (Low)	3 (Low)	7 (Low)	33 (Low)
15	2 (Low)	0 (Low)	42 (Medium)	11 (Low)	62 (Medium)
16	1 (Low)	1 (Low)	47 (Medium)	16 (Low)	43 (Low)
17	1 (Low)	0 (Low)	9 (Low)	5 (Low)	24 (Low)
18	1 (Low)	0 (Low)	92 (High)	24 (Medium)	121 (Medium)
19	1 (Low)	0 (Low)	23 (Low)	27 (Medium)	36 (Low)
20	0 (Low)	2 (Low)	35 (Medium)	12 (Low)	16 (Low)
21	2 (Low)	0 (Low)	34 (Medium)	27 (Medium)	24 (Low)
22	1 (Low)	0 (Low)	43 (Medium)	42 (Medium)	44 (Low)
23	1 (Low)	0 (Low)	98 (High)	43 (Medium)	174 (Medium)
24	2 (Low)	0 (Low)	43 (Medium)	22 (Medium)	208 (High)
25	1 (Low)	0 (Low)	0 (Low)	1 (Low)	2 (Low)
26	1 (Low)	0 (Low)	12 (Low)	10 (Low)	18 (Low)
27	1 (Low)	0 (Low)	26 (Low)	19 (Low)	32 (Low)
28	0 (Low)	0 (Low)	55 (Medium)	15 (Low)	30 (Low)
29	0 (Low)	0 (Low)	61 (Medium)	23 (Medium)	77 (Medium)
30	1 (Low)	0 (Low)	30 (Medium)	12 (Low)	56 (Medium)
31	0 (Low)	0 (Low)	9 (Low)	14 (Low)	1 (Low)