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

Hour
Index value Pollutant Index value Pollutant
0 5 PM10 27 O3
1 4 PM10 27 O3
2 6 PM10 26 O3
3 11 PM10 25 O3
4 8 PM10 24 O3
5 2 PM10 24 O3
6 1 PM10 23 NO2
7 6 PM10 30 NO2
8 10 PM10 27 NO2
9 17 PM10 23 O3
10 27 PM10 27 O3
11 10 PM10 27 O3
12 10 PM10 28 O3
13 8 PM10 28 O3
14 13 PM10 28 O3
15 14 PM10 26 O3
16 12 PM10 29 NO2
17 16 PM10 41 NO2
18 21 PM10 34 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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