Table 5.
Values of AQI classes in Spain, France and the UK within the lockdown 2020 and during the same time in 2019.
| Year | Country/City | Class I |
Class II |
Class III |
Class IV |
Class V |
Class VI |
|||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Per. (%) | Rg. | Per. (%) | Rg. | Per. (%) | Rg. | Per. (%) | Rg. | Per. (%) | Rg. | Per. (%) | Rg. | |||
| 2020 | Spain | Barcelona | 100 | 15–41 | – | – | – | – | – | – | – | – | – | – |
| Madrid | – | – | 12.1 | 76–99 | 56.6 | 102–149 | 31.3 | 151–179 | – | – | – | – | ||
| France | Paris | – | – | 7.0 | 92–97 | 42.1 | 102–149 | 50.9 | 151–188 | – | – | – | – | |
| Marseille | – | – | 29.8 | 71–97 | 40.4 | 102–149 | 29.8 | 151–163 | – | – | – | – | ||
| UK | London | – | – | 16.4 | 84–99 | 49.3 | 102–149 | 34.3 | 151–182 | – | – | – | – | |
| West Midlands | 1.5 | 45 | 53.7 | 36–57 | 23.9 | 107–147 | 20.9 | 151–172 | – | – | – | – | ||
| 2019 | Spain | Barcelona | 100 | 15–41 | – | – | – | – | – | – | – | – | – | – |
| Madrid | – | – | 50.6 | 61–99 | 33.7 | 102–144 | 15.7 | 151–168 | – | – | – | – | ||
| France | Paris | – | – | – | – | 31.6 | 102–147 | 68.4 | 152–181 | – | – | – | – | |
| Marseille | – | – | 24.6 | 82–99 | 68.4 | 102–144 | 7.0 | 152–166 | – | – | – | – | ||
| UK | London | – | – | 13.4 | 86–97 | 31.3 | 104–149 | 55.3 | 151–191 | – | – | – | – | |
| West Midlands | – | – | 47.8 | 57–99 | 26.9 | 102–149 | 25.3 | 151–187 | – | – | – | – | ||
Note: Per. = Percentage, Rg. = Ranges.