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

Hour
Index value Pollutant Index value Pollutant
0 - 25 O3
1 - 25 O3
2 - 24 O3
3 - 23 O3
4 - 21 O3
5 - 23 NO2
6 - 23 NO2
7 - 24 NO2
8 - 26 NO2
9 - 27 NO2
10 - 27 NO2
11 - 27 NO2
12 - 20 NO2
13 - 19 O3
14 - 21 NO2
15 - 31 NO2
16 - 33 NO2
17 - 31 NO2
18 - -
19 - -
20 - -
21 - -
22 - -
23 - -

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

Back to Rouen Air Quality Details

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