Madrid-Ciudad Universitaria — September 1993

3 Grasses — day 2

3 Grasses — day 11

3 Grasses — day 21

30 Days measured

Daily pollen level evolution
Day	Grasses
1	2 (Low)
2	3 (Low)
3	1 (Low)
4	2 (Low)
5	1 (Low)
6	1 (Low)
7	1 (Low)
8	1 (Low)
9	0 (Low)
10	1 (Low)
11	3 (Low)
12	2 (Low)
13	1 (Low)
14	2 (Low)
15	2 (Low)
16	1 (Low)
17	2 (Low)
18	1 (Low)
19	0 (Low)
20	0 (Low)
21	3 (Low)
22	2 (Low)
23	3 (Low)
24	1 (Low)
25	0 (Low)
26	1 (Low)
27	0 (Low)
28	0 (Low)
29	0 (Low)
30	0 (Low)