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

Hour
Index value Pollutant Index value Pollutant
0 26 PM10 22 NO2
1 30 PM10 17 NO2
2 25 PM10 14 NO2
3 20 PM10 12 NO2
4 20 PM10 12 NO2
5 19 NO2 13 NO2
6 26 NO2 13 NO2
7 33 NO2 15 NO2
8 32 NO2 14 NO2
9 30 PM10 14 NO2
10 26 NO2 9 NO2
11 31 NO2 19 NO2
12 33 NO2 13 O3
13 26 NO2 18 O3
14 35 NO2 23 O3
15 40 NO2 22 O3
16 51 NO2 13 NO2
17 51 NO2 19 NO2
18 53 NO2 18 NO2
19 41 NO2 16 NO2
20 33 NO2 17 NO2
21 30 PM10 19 NO2
22 28 NO2 19 NO2
23 30 NO2 18 NO2

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

Back to Brest Air Quality Details

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