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

Hour
Index value Pollutant Index value Pollutant
0 4 PM10 30 O3
1 1 NO2 29 O3
2 2 PM10 28 O3
3 6 PM10 27 O3
4 6 NO2 23 O3
5 9 NO2 23 O3
6 17 NO2 24 O3
7 15 NO2 27 O3
8 13 NO2 29 O3
9 13 NO2 29 O3
10 12 NO2 30 O3
11 10 NO2 31 O3
12 8 NO2 32 O3
13 11 NO2 31 O3
14 15 NO2 31 O3
15 19 NO2 30 O3
16 28 NO2 26 O3
17 22 NO2 30 O3
18 19 NO2 31 O3
19 12 NO2 29 O3
20 9 NO2 31 O3
21 9 NO2 27 O3
22 8 NO2 25 O3
23 6 PM2.5 26 O3

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

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