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

Hour
Index value Pollutant Index value Pollutant
0 8 PM2.5 25 O3
1 10 PM2.5 23 O3
2 13 PM2.5 23 O3
3 9 PM2.5 23 O3
4 6 NO2 21 O3
5 11 NO2 18 O3
6 12 NO2 17 O3
7 16 NO2 17 NO2
8 18 NO2 41 PM10
9 14 NO2 20 PM10
10 17 NO2 30 PM10
11 15 PM10 24 O3
12 16 NO2 20 O3
13 17 NO2 18 O3
14 19 NO2 18 O3
15 21 NO2 15 NO2
16 27 NO2 24 NO2
17 30 PM10 26 NO2
18 28 NO2 26 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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