Legend :
Pollution Index Value
Very Low   0 / 25
Low   25 / 50
Medium   50 / 75
High   75 / 100
Very High   > 100
Madrid Yesterday Details

Hour
Index value Pollutant Index value Pollutant
0 14 PM10 28 O3
1 10 PM10 26 O3
2 12 PM10 25 O3
3 11 NO2 25 O3
4 21 NO2 27 NO2
5 26 NO2 33 NO2
6 29 NO2 29 NO2
7 45 PM10 35 PM10
8 38 PM10 54 PM10
9 33 PM10 40 PM10
10 41 PM10 43 O3
11 34 PM10 56 O3
12 34 PM10 59 O3
13 49 PM10 64 O3
14 24 PM10 65 O3
15 27 PM10 64 O3
16 23 PM10 63 O3
17 26 NO2 63 O3
18 46 PM10 57 O3
19 63 NO2 45 O3
20 67 NO2 57 NO2
21 64 NO2 59 NO2
22 59 NO2 55 NO2
23 52 NO2 48 NO2

NB: the pollutant with the highest value at a certain time determines the overall score of that time

Back to Madrid Air Quality Details

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