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

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

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

Back to London Air Quality Details

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