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

Hour
Index value Pollutant Index value Pollutant
0 - 23 O3
1 - 21 O3
2 - 18 O3
3 - 19 O3
4 - 21 O3
5 - 20 O3
6 - 21 O3
7 - 19 O3
8 - 16 O3
9 - 14 NO2
10 - 23 PM10
11 - 24 O3
12 - 26 O3
13 - 27 O3
14 - 27 O3
15 - 26 O3
16 - 24 O3
17 - 14 O3
18 - 16 PM10
19 - 30 PM10
20 - 21 PM10
21 - 38 PM10
22 - 21 O3
23 - 23 O3

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

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