Leganés — March 1998

819 London Plane — day 19

608 London Plane — day 18

395 London Plane — day 20

31 Days measured

Daily pollen level evolution
Day	Cypress/Yew	London Plane	Grasses	Plantain	Olive
1	28 (Low)	0 (Low)	6 (Low)	0 (Low)	0 (Low)
2	13 (Low)	9 (Low)	9 (Low)	0 (Low)	0 (Low)
3	3 (Low)	1 (Low)	2 (Low)	0 (Low)	0 (Low)
4	6 (Low)	4 (Low)	5 (Low)	0 (Low)	0 (Low)
5	2 (Low)	17 (Low)	2 (Low)	0 (Low)	0 (Low)
6	4 (Low)	10 (Low)	4 (Low)	0 (Low)	0 (Low)
7	9 (Low)	6 (Low)	5 (Low)	0 (Low)	0 (Low)
8	18 (Low)	19 (Low)	11 (Low)	0 (Low)	0 (Low)
9	25 (Low)	11 (Low)	8 (Low)	0 (Low)	0 (Low)
10	4 (Low)	9 (Low)	2 (Low)	0 (Low)	0 (Low)
11	15 (Low)	21 (Low)	6 (Low)	0 (Low)	0 (Low)
12	24 (Low)	29 (Low)	7 (Low)	0 (Low)	0 (Low)
13	4 (Low)	42 (Medium)	3 (Low)	0 (Low)	0 (Low)
14	0 (Low)	18 (Low)	2 (Low)	0 (Low)	0 (Low)
15	3 (Low)	79 (Medium)	2 (Low)	0 (Low)	0 (Low)
16	3 (Low)	50 (Medium)	2 (Low)	0 (Low)	0 (Low)
17	6 (Low)	209 (High)	10 (Low)	0 (Low)	0 (Low)
18	19 (Low)	608 (Very high)	22 (Low)	0 (Low)	0 (Low)
19	10 (Low)	819 (Very high)	15 (Low)	0 (Low)	0 (Low)
20	19 (Low)	395 (Very high)	17 (Low)	0 (Low)	0 (Low)
21	13 (Low)	261 (High)	24 (Low)	0 (Low)	0 (Low)
22	18 (Low)	327 (Very high)	19 (Low)	0 (Low)	0 (Low)
23	4 (Low)	119 (High)	10 (Low)	0 (Low)	0 (Low)
24	1 (Low)	94 (Medium)	8 (Low)	0 (Low)	1 (Low)
25	0 (Low)	68 (Medium)	5 (Low)	0 (Low)	0 (Low)
26	2 (Low)	52 (Medium)	6 (Low)	2 (Low)	1 (Low)
27	1 (Low)	120 (High)	10 (Low)	5 (Low)	0 (Low)
28	6 (Low)	149 (High)	5 (Low)	10 (Low)	0 (Low)
29	0 (Low)	29 (Low)	2 (Low)	2 (Low)	0 (Low)
30	0 (Low)	42 (Medium)	4 (Low)	4 (Low)	0 (Low)
31	0 (Low)	41 (Medium)	2 (Low)	25 (Medium)	0 (Low)