Table 4.
Values of AQI classes in Canada, Chile and Germany 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 | Canada | Toronto | – | – | 69.3 | 52–99 | 22.7 | 102–147 | 8.0 | 151–154 | – | – | – | – |
| Montreal | – | – | 82.7 | 66–99 | 17.3 | 102–144 | – | – | – | – | – | – | ||
| Chile | Santiago | 1.3 | 38 | 11.7 | 52–99 | 3.9 | 124–147 | 79.2 | 151–186 | 3.9 | 204–264 | – | – | |
| Germany | Berlin | 96.2 | 19–48 | 3.8 | 51–53 | – | – | – | – | – | – | – | – | |
| Munich | 92.4 | 25–50 | 7.6 | 54–64 | – | – | – | – | – | – | – | – | ||
| 2019 | Canada | Toronto | 1.3 | 50 | 62.7 | 52–92 | 28.0 | 104–147 | 8.0 | 152–163 | – | – | – | – |
| Montreal | – | – | 57.3 | 61–97 | 32.0 | 102–134 | 10.7 | 152 | – | – | – | – | ||
| Chile | Santiago | – | – | 6.5 | 66–87 | – | – | 77.9 | 151–200 | 14.3 | 204–264 | 1.3 | 306 | |
| Germany | Berlin | 98.1 | 21–50 | 1.9 | 54 | – | – | – | – | – | – | – | – | |
| Munich | 67.9 | 29–50 | 32.1 | 51–58 | – | – | – | – | – | – | – | – | ||
Note: Per. = Percentage, Rg. = Ranges.