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Legend :
Pollution Index Value
Very Low   0 / 25
Low   25 / 50
Medium   50 / 75
High   75 / 100
Very High   > 100
Bourg-en-Bresse Yesterday Details

Hour
Index value Pollutant Index value Pollutant
0 - 25 O3
1 - 25 O3
2 - 25 O3
3 - 24 O3
4 - 24 O3
5 - 23 O3
6 - 20 O3
7 - 17 O3
8 - 16 O3
9 - 13 NO2
10 - 13 NO2
11 - 18 NO2
12 - 15 O3
13 - 15 O3
14 - 17 O3
15 - 18 O3
16 - 32 NO2
17 - 21 NO2
18 - 27 NO2
19 - -
20 - -
21 - -
22 - -
23 - -

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

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