Data about the daily mean concentration of air pollutants, especially those potentially harmful to human health. Data should be available for all air monitoring stations or air monitoring zones in a city.
| Rank | Place | Breakdown | Year | Score | Admin |
|---|---|---|---|---|---|
| 2 | Curitiba |
|
2017 | 60% | |
| 1 | Rio de Janeiro |
|
2017 | 80% | |
| 3 | São Paulo |
|
2017 | 55% |